From d3f70e3f1e4f277adc4fabc67483514581f1caef Mon Sep 17 00:00:00 2001 From: Peter Eisentraut Date: Wed, 15 May 2024 10:34:36 +0200 Subject: [PATCH 04/10] Revert "Add temporal FOREIGN KEY contraints" This reverts commit 34768ee361656841a122f1c8d52a2ad753612feb. --- .../btree_gist/expected/without_overlaps.out | 48 - contrib/btree_gist/sql/without_overlaps.sql | 28 - doc/src/sgml/catalogs.sgml | 3 +- doc/src/sgml/ref/create_table.sgml | 43 +- src/backend/catalog/pg_constraint.c | 58 - src/backend/commands/indexcmds.c | 31 +- src/backend/commands/tablecmds.c | 226 +--- src/backend/parser/gram.y | 45 +- src/backend/utils/adt/ri_triggers.c | 168 +-- src/backend/utils/adt/ruleutils.c | 17 +- src/include/catalog/pg_constraint.h | 21 +- src/include/commands/defrem.h | 2 +- src/include/nodes/parsenodes.h | 2 - src/include/parser/kwlist.h | 1 - .../regress/expected/without_overlaps.out | 1159 +---------------- src/test/regress/sql/without_overlaps.sql | 1056 +-------------- 16 files changed, 118 insertions(+), 2790 deletions(-) diff --git a/contrib/btree_gist/expected/without_overlaps.out b/contrib/btree_gist/expected/without_overlaps.out index 18856900ded..be52c522e89 100644 --- a/contrib/btree_gist/expected/without_overlaps.out +++ b/contrib/btree_gist/expected/without_overlaps.out @@ -42,51 +42,3 @@ INSERT INTO temporal_rng VALUES (1, '[2000-06-01,2001-01-01)'); ERROR: conflicting key value violates exclusion constraint "temporal_rng_pk" DETAIL: Key (id, valid_at)=(1, [06-01-2000,01-01-2001)) conflicts with existing key (id, valid_at)=(1, [01-01-2000,01-01-2001)). --- Foreign key -CREATE TABLE temporal_fk_rng2rng ( - id integer, - valid_at daterange, - parent_id integer, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at) -); -\d temporal_fk_rng2rng - Table "public.temporal_fk_rng2rng" - Column | Type | Collation | Nullable | Default ------------+-----------+-----------+----------+--------- - id | integer | | not null | - valid_at | daterange | | not null | - parent_id | integer | | | -Indexes: - "temporal_fk_rng2rng_pk" PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -Foreign-key constraints: - "temporal_fk_rng2rng_fk" FOREIGN KEY (parent_id, PERIOD valid_at) REFERENCES temporal_rng(id, PERIOD valid_at) - -SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conname = 'temporal_fk_rng2rng_fk'; - pg_get_constraintdef ---------------------------------------------------------------------------------------- - FOREIGN KEY (parent_id, PERIOD valid_at) REFERENCES temporal_rng(id, PERIOD valid_at) -(1 row) - --- okay -INSERT INTO temporal_fk_rng2rng VALUES - (1, '[2000-01-01,2001-01-01)', 1); --- okay spanning two parent records: -INSERT INTO temporal_fk_rng2rng VALUES - (2, '[2000-01-01,2002-01-01)', 1); --- key is missing -INSERT INTO temporal_fk_rng2rng VALUES - (3, '[2000-01-01,2001-01-01)', 3); -ERROR: insert or update on table "temporal_fk_rng2rng" violates foreign key constraint "temporal_fk_rng2rng_fk" -DETAIL: Key (parent_id, valid_at)=(3, [01-01-2000,01-01-2001)) is not present in table "temporal_rng". --- key exist but is outside range -INSERT INTO temporal_fk_rng2rng VALUES - (4, '[2001-01-01,2002-01-01)', 2); -ERROR: insert or update on table "temporal_fk_rng2rng" violates foreign key constraint "temporal_fk_rng2rng_fk" -DETAIL: Key (parent_id, valid_at)=(2, [01-01-2001,01-01-2002)) is not present in table "temporal_rng". --- key exist but is partly outside range -INSERT INTO temporal_fk_rng2rng VALUES - (5, '[2000-01-01,2002-01-01)', 2); -ERROR: insert or update on table "temporal_fk_rng2rng" violates foreign key constraint "temporal_fk_rng2rng_fk" -DETAIL: Key (parent_id, valid_at)=(2, [01-01-2000,01-01-2002)) is not present in table "temporal_rng". diff --git a/contrib/btree_gist/sql/without_overlaps.sql b/contrib/btree_gist/sql/without_overlaps.sql index b1b581fcabc..433c609ab22 100644 --- a/contrib/btree_gist/sql/without_overlaps.sql +++ b/contrib/btree_gist/sql/without_overlaps.sql @@ -23,31 +23,3 @@ CREATE TABLE temporal_rng ( -- should fail: INSERT INTO temporal_rng VALUES (1, '[2000-06-01,2001-01-01)'); - --- Foreign key -CREATE TABLE temporal_fk_rng2rng ( - id integer, - valid_at daterange, - parent_id integer, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at) -); -\d temporal_fk_rng2rng -SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conname = 'temporal_fk_rng2rng_fk'; - --- okay -INSERT INTO temporal_fk_rng2rng VALUES - (1, '[2000-01-01,2001-01-01)', 1); --- okay spanning two parent records: -INSERT INTO temporal_fk_rng2rng VALUES - (2, '[2000-01-01,2002-01-01)', 1); --- key is missing -INSERT INTO temporal_fk_rng2rng VALUES - (3, '[2000-01-01,2001-01-01)', 3); --- key exist but is outside range -INSERT INTO temporal_fk_rng2rng VALUES - (4, '[2001-01-01,2002-01-01)', 2); --- key exist but is partly outside range -INSERT INTO temporal_fk_rng2rng VALUES - (5, '[2000-01-01,2002-01-01)', 2); diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml index 5a6f65025b1..b488bff904c 100644 --- a/doc/src/sgml/catalogs.sgml +++ b/doc/src/sgml/catalogs.sgml @@ -2735,8 +2735,7 @@ <structname>pg_constraint</structname> Columns This constraint is defined with WITHOUT OVERLAPS - (for primary keys and unique constraints) or PERIOD - (for foreign keys). + (for primary keys and unique constraints). diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml index ee169c5b772..a77303af776 100644 --- a/doc/src/sgml/ref/create_table.sgml +++ b/doc/src/sgml/ref/create_table.sgml @@ -80,7 +80,7 @@ UNIQUE [ NULLS [ NOT ] DISTINCT ] ( column_name [, ... ] [, column_name WITHOUT OVERLAPS ] ) index_parameters | PRIMARY KEY ( column_name [, ... ] [, column_name WITHOUT OVERLAPS ] ) index_parameters | EXCLUDE [ USING index_method ] ( exclude_element WITH operator [, ... ] ) index_parameters [ WHERE ( predicate ) ] | - FOREIGN KEY ( column_name [, ... ] [, PERIOD column_name ] ) REFERENCES reftable [ ( refcolumn [, ... ] [, PERIOD column_name ] ) ] + FOREIGN KEY ( column_name [, ... ] ) REFERENCES reftable [ ( refcolumn [, ... ] ) ] [ MATCH FULL | MATCH PARTIAL | MATCH SIMPLE ] [ ON DELETE referential_action ] [ ON UPDATE referential_action ] } [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] @@ -1151,8 +1151,8 @@ Parameters REFERENCES reftable [ ( refcolumn ) ] [ MATCH matchtype ] [ ON DELETE referential_action ] [ ON UPDATE referential_action ] (column constraint) - FOREIGN KEY ( column_name [, ... ] [, PERIOD column_name ] ) - REFERENCES reftable [ ( refcolumn [, ... ] [, PERIOD column_name ] ) ] + FOREIGN KEY ( column_name [, ... ] ) + REFERENCES reftable [ ( refcolumn [, ... ] ) ] [ MATCH matchtype ] [ ON DELETE referential_action ] [ ON UPDATE referential_action ] @@ -1168,30 +1168,7 @@ Parameters primary key of the reftable is used. Otherwise, the refcolumn list must refer to the columns of a non-deferrable unique or primary key - constraint or be the columns of a non-partial unique index. - - - - If the last column is marked with PERIOD, it is - treated in a special way. While the non-PERIOD - columns are compared for equality (and there must be at least one of - them), the PERIOD column is not. Instead, the - constraint is considered satisfied if the referenced table has matching - records (based on the non-PERIOD parts of the key) - whose combined PERIOD values completely cover the - referencing record's. In other words, the reference must have a - referent for its entire duration. This column must be a range or - multirange type. In addition, the referenced table must have a primary - key or unique constraint declared with WITHOUT - OVERLAPS. Finally, if one side of the foreign key uses - PERIOD, the other side must too. If the refcolumn list is omitted, the - WITHOUT OVERLAPS part of the primary key is treated - as if marked with PERIOD. - - - - The user + constraint or be the columns of a non-partial unique index. The user must have REFERENCES permission on the referenced table (either the whole table, or the specific referenced columns). The addition of a foreign key constraint requires a @@ -1265,10 +1242,6 @@ Parameters values of the referencing column(s) to the new values of the referenced columns, respectively. - - - In a temporal foreign key, this option is not supported. - @@ -1280,10 +1253,6 @@ Parameters referencing columns, to null. A subset of columns can only be specified for ON DELETE actions. - - - In a temporal foreign key, this option is not supported. - @@ -1297,10 +1266,6 @@ Parameters (There must be a row in the referenced table matching the default values, if they are not null, or the operation will fail.) - - - In a temporal foreign key, this option is not supported. - diff --git a/src/backend/catalog/pg_constraint.c b/src/backend/catalog/pg_constraint.c index b10e458b449..9be050ccee8 100644 --- a/src/backend/catalog/pg_constraint.c +++ b/src/backend/catalog/pg_constraint.c @@ -15,7 +15,6 @@ #include "postgres.h" #include "access/genam.h" -#include "access/gist.h" #include "access/htup_details.h" #include "access/sysattr.h" #include "access/table.h" @@ -1350,63 +1349,6 @@ DeconstructFkConstraintRow(HeapTuple tuple, int *numfks, *numfks = numkeys; } -/* - * FindFKPeriodOpers - - * - * Looks up the operator oids used for the PERIOD part of a temporal foreign key. - * The opclass should be the opclass of that PERIOD element. - * Everything else is an output: containedbyoperoid is the ContainedBy operator for - * types matching the PERIOD element. - * aggedcontainedbyoperoid is also a ContainedBy operator, - * but one whose rhs is a multirange. - * That way foreign keys can compare fkattr <@ range_agg(pkattr). - */ -void -FindFKPeriodOpers(Oid opclass, - Oid *containedbyoperoid, - Oid *aggedcontainedbyoperoid) -{ - Oid opfamily = InvalidOid; - Oid opcintype = InvalidOid; - StrategyNumber strat; - - /* Make sure we have a range or multirange. */ - if (get_opclass_opfamily_and_input_type(opclass, &opfamily, &opcintype)) - { - if (opcintype != ANYRANGEOID && opcintype != ANYMULTIRANGEOID) - ereport(ERROR, - errcode(ERRCODE_FEATURE_NOT_SUPPORTED), - errmsg("invalid type for PERIOD part of foreign key"), - errdetail("Only range and multirange are supported.")); - - } - else - elog(ERROR, "cache lookup failed for opclass %u", opclass); - - /* - * Look up the ContainedBy operator whose lhs and rhs are the opclass's - * type. We use this to optimize RI checks: if the new value includes all - * of the old value, then we can treat the attribute as if it didn't - * change, and skip the RI check. - */ - strat = RTContainedByStrategyNumber; - GetOperatorFromWellKnownStrategy(opclass, - InvalidOid, - containedbyoperoid, - &strat); - - /* - * Now look up the ContainedBy operator. Its left arg must be the type of - * the column (or rather of the opclass). Its right arg must match the - * return type of the support proc. - */ - strat = RTContainedByStrategyNumber; - GetOperatorFromWellKnownStrategy(opclass, - ANYMULTIRANGEOID, - aggedcontainedbyoperoid, - &strat); -} - /* * Determine whether a relation can be proven functionally dependent on * a set of grouping columns. If so, return true and add the pg_constraint diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c index d9016ef487b..7b20d103c86 100644 --- a/src/backend/commands/indexcmds.c +++ b/src/backend/commands/indexcmds.c @@ -2185,7 +2185,7 @@ ComputeIndexAttrs(IndexInfo *indexInfo, strat = RTOverlapStrategyNumber; else strat = RTEqualStrategyNumber; - GetOperatorFromWellKnownStrategy(opclassOids[attn], InvalidOid, + GetOperatorFromWellKnownStrategy(opclassOids[attn], atttype, &opid, &strat); indexInfo->ii_ExclusionOps[attn] = opid; indexInfo->ii_ExclusionProcs[attn] = get_opcode(opid); @@ -2425,7 +2425,7 @@ GetDefaultOpClass(Oid type_id, Oid am_id) * GetOperatorFromWellKnownStrategy * * opclass - the opclass to use - * rhstype - the type for the right-hand side, or InvalidOid to use the type of the given opclass. + * atttype - the type to ask about * opid - holds the operator we found * strat - holds the input and output strategy number * @@ -2438,14 +2438,14 @@ GetDefaultOpClass(Oid type_id, Oid am_id) * InvalidStrategy. */ void -GetOperatorFromWellKnownStrategy(Oid opclass, Oid rhstype, +GetOperatorFromWellKnownStrategy(Oid opclass, Oid atttype, Oid *opid, StrategyNumber *strat) { Oid opfamily; Oid opcintype; StrategyNumber instrat = *strat; - Assert(instrat == RTEqualStrategyNumber || instrat == RTOverlapStrategyNumber || instrat == RTContainedByStrategyNumber); + Assert(instrat == RTEqualStrategyNumber || instrat == RTOverlapStrategyNumber); *opid = InvalidOid; @@ -2468,21 +2468,16 @@ GetOperatorFromWellKnownStrategy(Oid opclass, Oid rhstype, ereport(ERROR, errcode(ERRCODE_UNDEFINED_OBJECT), - instrat == RTEqualStrategyNumber ? errmsg("could not identify an equality operator for type %s", format_type_be(opcintype)) : - instrat == RTOverlapStrategyNumber ? errmsg("could not identify an overlaps operator for type %s", format_type_be(opcintype)) : - instrat == RTContainedByStrategyNumber ? errmsg("could not identify a contained-by operator for type %s", format_type_be(opcintype)) : 0, + instrat == RTEqualStrategyNumber ? + errmsg("could not identify an equality operator for type %s", format_type_be(atttype)) : + errmsg("could not identify an overlaps operator for type %s", format_type_be(atttype)), errdetail("Could not translate strategy number %d for operator class \"%s\" for access method \"%s\".", instrat, NameStr(((Form_pg_opclass) GETSTRUCT(tuple))->opcname), "gist")); + + ReleaseSysCache(tuple); } - /* - * We parameterize rhstype so foreign keys can ask for a <@ operator - * whose rhs matches the aggregate function. For example range_agg - * returns anymultirange. - */ - if (!OidIsValid(rhstype)) - rhstype = opcintype; - *opid = get_opfamily_member(opfamily, opcintype, rhstype, *strat); + *opid = get_opfamily_member(opfamily, opcintype, opcintype, *strat); } if (!OidIsValid(*opid)) @@ -2495,9 +2490,9 @@ GetOperatorFromWellKnownStrategy(Oid opclass, Oid rhstype, ereport(ERROR, errcode(ERRCODE_UNDEFINED_OBJECT), - instrat == RTEqualStrategyNumber ? errmsg("could not identify an equality operator for type %s", format_type_be(opcintype)) : - instrat == RTOverlapStrategyNumber ? errmsg("could not identify an overlaps operator for type %s", format_type_be(opcintype)) : - instrat == RTContainedByStrategyNumber ? errmsg("could not identify a contained-by operator for type %s", format_type_be(opcintype)) : 0, + instrat == RTEqualStrategyNumber ? + errmsg("could not identify an equality operator for type %s", format_type_be(atttype)) : + errmsg("could not identify an overlaps operator for type %s", format_type_be(atttype)), errdetail("There is no suitable operator in operator family \"%s\" for access method \"%s\".", NameStr(((Form_pg_opfamily) GETSTRUCT(tuple))->opfname), "gist")); } diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c index 79c9c031833..cd33049788a 100644 --- a/src/backend/commands/tablecmds.c +++ b/src/backend/commands/tablecmds.c @@ -16,7 +16,6 @@ #include "access/attmap.h" #include "access/genam.h" -#include "access/gist.h" #include "access/heapam.h" #include "access/heapam_xlog.h" #include "access/multixact.h" @@ -216,7 +215,6 @@ typedef struct NewConstraint ConstrType contype; /* CHECK or FOREIGN */ Oid refrelid; /* PK rel, if FOREIGN */ Oid refindid; /* OID of PK's index, if FOREIGN */ - bool conwithperiod; /* Whether the new FOREIGN KEY uses PERIOD */ Oid conid; /* OID of pg_constraint entry, if FOREIGN */ Node *qual; /* Check expr or CONSTR_FOREIGN Constraint */ ExprState *qualstate; /* Execution state for CHECK expr */ @@ -391,17 +389,16 @@ static int transformColumnNameList(Oid relId, List *colList, static int transformFkeyGetPrimaryKey(Relation pkrel, Oid *indexOid, List **attnamelist, int16 *attnums, Oid *atttypids, - Oid *opclasses, bool *pk_has_without_overlaps); + Oid *opclasses); static Oid transformFkeyCheckAttrs(Relation pkrel, int numattrs, int16 *attnums, - bool with_period, Oid *opclasses, - bool *pk_has_without_overlaps); + Oid *opclasses); static void checkFkeyPermissions(Relation rel, int16 *attnums, int natts); static CoercionPathType findFkeyCast(Oid targetTypeId, Oid sourceTypeId, Oid *funcid); static void validateForeignKeyConstraint(char *conname, Relation rel, Relation pkrel, - Oid pkindOid, Oid constraintOid, bool hasperiod); + Oid pkindOid, Oid constraintOid); static void ATController(AlterTableStmt *parsetree, Relation rel, List *cmds, bool recurse, LOCKMODE lockmode, AlterTableUtilityContext *context); @@ -512,8 +509,7 @@ static ObjectAddress addFkRecurseReferenced(List **wqueue, Constraint *fkconstra Oid *pfeqoperators, Oid *ppeqoperators, Oid *ffeqoperators, int numfkdelsetcols, int16 *fkdelsetcols, bool old_check_ok, - Oid parentDelTrigger, Oid parentUpdTrigger, - bool with_period); + Oid parentDelTrigger, Oid parentUpdTrigger); static void validateFkOnDeleteSetColumns(int numfks, const int16 *fkattnums, int numfksetcols, const int16 *fksetcolsattnums, List *fksetcols); @@ -523,9 +519,7 @@ static void addFkRecurseReferencing(List **wqueue, Constraint *fkconstraint, Oid *pfeqoperators, Oid *ppeqoperators, Oid *ffeqoperators, int numfkdelsetcols, int16 *fkdelsetcols, bool old_check_ok, LOCKMODE lockmode, - Oid parentInsTrigger, Oid parentUpdTrigger, - bool with_period); - + Oid parentInsTrigger, Oid parentUpdTrigger); static void CloneForeignKeyConstraints(List **wqueue, Relation parentRel, Relation partitionRel); static void CloneFkReferenced(Relation parentRel, Relation partitionRel); @@ -5924,8 +5918,7 @@ ATRewriteTables(AlterTableStmt *parsetree, List **wqueue, LOCKMODE lockmode, validateForeignKeyConstraint(fkconstraint->conname, rel, refrel, con->refindid, - con->conid, - con->conwithperiod); + con->conid); /* * No need to mark the constraint row as validated, we did @@ -9566,8 +9559,6 @@ ATAddForeignKeyConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel, Oid ppeqoperators[INDEX_MAX_KEYS] = {0}; Oid ffeqoperators[INDEX_MAX_KEYS] = {0}; int16 fkdelsetcols[INDEX_MAX_KEYS] = {0}; - bool with_period; - bool pk_has_without_overlaps; int i; int numfks, numpks, @@ -9662,11 +9653,6 @@ ATAddForeignKeyConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel, numfks = transformColumnNameList(RelationGetRelid(rel), fkconstraint->fk_attrs, fkattnum, fktypoid); - with_period = fkconstraint->fk_with_period || fkconstraint->pk_with_period; - if (with_period && !fkconstraint->fk_with_period) - ereport(ERROR, - errcode(ERRCODE_INVALID_FOREIGN_KEY), - errmsg("foreign key uses PERIOD on the referenced table but not the referencing table")); numfkdelsetcols = transformColumnNameList(RelationGetRelid(rel), fkconstraint->fk_del_set_cols, @@ -9686,40 +9672,18 @@ ATAddForeignKeyConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel, numpks = transformFkeyGetPrimaryKey(pkrel, &indexOid, &fkconstraint->pk_attrs, pkattnum, pktypoid, - opclasses, &pk_has_without_overlaps); - - /* If the primary key uses WITHOUT OVERLAPS, the fk must use PERIOD */ - if (pk_has_without_overlaps && !fkconstraint->fk_with_period) - ereport(ERROR, - errcode(ERRCODE_INVALID_FOREIGN_KEY), - errmsg("foreign key uses PERIOD on the referenced table but not the referencing table")); + opclasses); } else { numpks = transformColumnNameList(RelationGetRelid(pkrel), fkconstraint->pk_attrs, pkattnum, pktypoid); - - /* Since we got pk_attrs, one should be a period. */ - if (with_period && !fkconstraint->pk_with_period) - ereport(ERROR, - errcode(ERRCODE_INVALID_FOREIGN_KEY), - errmsg("foreign key uses PERIOD on the referencing table but not the referenced table")); - /* Look for an index matching the column list */ indexOid = transformFkeyCheckAttrs(pkrel, numpks, pkattnum, - with_period, opclasses, &pk_has_without_overlaps); + opclasses); } - /* - * If the referenced primary key has WITHOUT OVERLAPS, the foreign key - * must use PERIOD. - */ - if (pk_has_without_overlaps && !with_period) - ereport(ERROR, - errcode(ERRCODE_INVALID_FOREIGN_KEY), - errmsg("foreign key must use PERIOD when referencing a primary using WITHOUT OVERLAPS")); - /* * Now we can check permissions. */ @@ -9753,28 +9717,6 @@ ATAddForeignKeyConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel, } } - /* - * Some actions are currently unsupported for foreign keys using PERIOD. - */ - if (fkconstraint->fk_with_period) - { - if (fkconstraint->fk_upd_action == FKCONSTR_ACTION_CASCADE || - fkconstraint->fk_upd_action == FKCONSTR_ACTION_SETNULL || - fkconstraint->fk_upd_action == FKCONSTR_ACTION_SETDEFAULT) - ereport(ERROR, - errcode(ERRCODE_FEATURE_NOT_SUPPORTED), - errmsg("unsupported %s action for foreign key constraint using PERIOD", - "ON UPDATE")); - - if (fkconstraint->fk_del_action == FKCONSTR_ACTION_CASCADE || - fkconstraint->fk_del_action == FKCONSTR_ACTION_SETNULL || - fkconstraint->fk_del_action == FKCONSTR_ACTION_SETDEFAULT) - ereport(ERROR, - errcode(ERRCODE_FEATURE_NOT_SUPPORTED), - errmsg("unsupported %s action for foreign key constraint using PERIOD", - "ON DELETE")); - } - /* * Look up the equality operators to use in the constraint. * @@ -9821,56 +9763,16 @@ ATAddForeignKeyConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel, opcintype = cla_tup->opcintype; ReleaseSysCache(cla_ht); - if (with_period) - { - StrategyNumber rtstrategy; - bool for_overlaps = with_period && i == numpks - 1; - - /* - * GiST indexes are required to support temporal foreign keys - * because they combine equals and overlaps. - */ - if (amid != GIST_AM_OID) - elog(ERROR, "only GiST indexes are supported for temporal foreign keys"); - - rtstrategy = for_overlaps ? RTOverlapStrategyNumber : RTEqualStrategyNumber; - - /* - * An opclass can use whatever strategy numbers it wants, so we - * ask the opclass what number it actually uses instead of our RT* - * constants. - */ - eqstrategy = GistTranslateStratnum(opclasses[i], rtstrategy); - if (eqstrategy == InvalidStrategy) - { - HeapTuple tuple; - - tuple = SearchSysCache1(CLAOID, ObjectIdGetDatum(opclasses[i])); - if (!HeapTupleIsValid(tuple)) - elog(ERROR, "cache lookup failed for operator class %u", opclasses[i]); - - ereport(ERROR, - errcode(ERRCODE_UNDEFINED_OBJECT), - for_overlaps - ? errmsg("could not identify an overlaps operator for foreign key") - : errmsg("could not identify an equality operator for foreign key"), - errdetail("Could not translate strategy number %d for operator class \"%s\" for access method \"%s\".", - rtstrategy, NameStr(((Form_pg_opclass) GETSTRUCT(tuple))->opcname), "gist")); - } - } - else - { - /* - * Check it's a btree; currently this can never fail since no - * other index AMs support unique indexes. If we ever did have - * other types of unique indexes, we'd need a way to determine - * which operator strategy number is equality. (We could use - * something like GistTranslateStratnum.) - */ - if (amid != BTREE_AM_OID) - elog(ERROR, "only b-tree indexes are supported for foreign keys"); - eqstrategy = BTEqualStrategyNumber; - } + /* + * Check it's a btree; currently this can never fail since no other + * index AMs support unique indexes. If we ever did have other types + * of unique indexes, we'd need a way to determine which operator + * strategy number is equality. (Is it reasonable to insist that + * every such index AM use btree's number for equality?) + */ + if (amid != BTREE_AM_OID) + elog(ERROR, "only b-tree indexes are supported for foreign keys"); + eqstrategy = BTEqualStrategyNumber; /* * There had better be a primary equality operator for the index. @@ -10020,22 +9922,6 @@ ATAddForeignKeyConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel, ffeqoperators[i] = ffeqop; } - /* - * For FKs with PERIOD we need additional operators to check whether the - * referencing row's range is contained by the aggregated ranges of the - * referenced row(s). For rangetypes and multirangetypes this is - * fk.periodatt <@ range_agg(pk.periodatt). Those are the only types we - * support for now. FKs will look these up at "runtime", but we should - * make sure the lookup works here, even if we don't use the values. - */ - if (with_period) - { - Oid periodoperoid; - Oid aggedperiodoperoid; - - FindFKPeriodOpers(opclasses[numpks - 1], &periodoperoid, &aggedperiodoperoid); - } - /* * Create all the constraint and trigger objects, recursing to partitions * as necessary. First handle the referenced side. @@ -10052,8 +9938,7 @@ ATAddForeignKeyConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel, numfkdelsetcols, fkdelsetcols, old_check_ok, - InvalidOid, InvalidOid, - with_period); + InvalidOid, InvalidOid); /* Now handle the referencing side. */ addFkRecurseReferencing(wqueue, fkconstraint, rel, pkrel, @@ -10069,8 +9954,7 @@ ATAddForeignKeyConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel, fkdelsetcols, old_check_ok, lockmode, - InvalidOid, InvalidOid, - with_period); + InvalidOid, InvalidOid); /* * Done. Close pk table, but keep lock until we've committed. @@ -10155,8 +10039,7 @@ addFkRecurseReferenced(List **wqueue, Constraint *fkconstraint, Relation rel, Oid *ppeqoperators, Oid *ffeqoperators, int numfkdelsetcols, int16 *fkdelsetcols, bool old_check_ok, - Oid parentDelTrigger, Oid parentUpdTrigger, - bool with_period) + Oid parentDelTrigger, Oid parentUpdTrigger) { ObjectAddress address; Oid constrOid; @@ -10242,7 +10125,7 @@ addFkRecurseReferenced(List **wqueue, Constraint *fkconstraint, Relation rel, conislocal, /* islocal */ coninhcount, /* inhcount */ connoinherit, /* conNoInherit */ - with_period, /* conPeriod */ + false, /* conPeriod */ false); /* is_internal */ ObjectAddressSet(address, ConstraintRelationId, constrOid); @@ -10318,8 +10201,7 @@ addFkRecurseReferenced(List **wqueue, Constraint *fkconstraint, Relation rel, pfeqoperators, ppeqoperators, ffeqoperators, numfkdelsetcols, fkdelsetcols, old_check_ok, - deleteTriggerOid, updateTriggerOid, - with_period); + deleteTriggerOid, updateTriggerOid); /* Done -- clean up (but keep the lock) */ table_close(partRel, NoLock); @@ -10377,8 +10259,7 @@ addFkRecurseReferencing(List **wqueue, Constraint *fkconstraint, Relation rel, Oid *pfeqoperators, Oid *ppeqoperators, Oid *ffeqoperators, int numfkdelsetcols, int16 *fkdelsetcols, bool old_check_ok, LOCKMODE lockmode, - Oid parentInsTrigger, Oid parentUpdTrigger, - bool with_period) + Oid parentInsTrigger, Oid parentUpdTrigger) { Oid insertTriggerOid, updateTriggerOid; @@ -10426,7 +10307,6 @@ addFkRecurseReferencing(List **wqueue, Constraint *fkconstraint, Relation rel, newcon->refrelid = RelationGetRelid(pkrel); newcon->refindid = indexOid; newcon->conid = parentConstr; - newcon->conwithperiod = fkconstraint->fk_with_period; newcon->qual = (Node *) fkconstraint; tab->constraints = lappend(tab->constraints, newcon); @@ -10544,7 +10424,7 @@ addFkRecurseReferencing(List **wqueue, Constraint *fkconstraint, Relation rel, false, 1, false, - with_period, /* conPeriod */ + false, /* conPeriod */ false); /* @@ -10575,8 +10455,7 @@ addFkRecurseReferencing(List **wqueue, Constraint *fkconstraint, Relation rel, old_check_ok, lockmode, insertTriggerOid, - updateTriggerOid, - with_period); + updateTriggerOid); table_close(partition, NoLock); } @@ -10812,8 +10691,7 @@ CloneFkReferenced(Relation parentRel, Relation partitionRel) confdelsetcols, true, deleteTriggerOid, - updateTriggerOid, - constrForm->conperiod); + updateTriggerOid); table_close(fkRel, NoLock); ReleaseSysCache(tuple); @@ -10906,7 +10784,6 @@ CloneFkReferencing(List **wqueue, Relation parentRel, Relation partRel) ListCell *lc; Oid insertTriggerOid, updateTriggerOid; - bool with_period; tuple = SearchSysCache1(CONSTROID, ObjectIdGetDatum(parentConstrOid)); if (!HeapTupleIsValid(tuple)) @@ -11022,7 +10899,6 @@ CloneFkReferencing(List **wqueue, Relation parentRel, Relation partRel) fkconstraint->conname = pstrdup(NameStr(constrForm->conname)); indexOid = constrForm->conindid; - with_period = constrForm->conperiod; constrOid = CreateConstraintEntry(fkconstraint->conname, constrForm->connamespace, @@ -11054,7 +10930,7 @@ CloneFkReferencing(List **wqueue, Relation parentRel, Relation partRel) false, /* islocal */ 1, /* inhcount */ false, /* conNoInherit */ - with_period, /* conPeriod */ + false, /* conPeriod */ true); /* Set up partition dependencies for the new constraint */ @@ -11088,8 +10964,7 @@ CloneFkReferencing(List **wqueue, Relation parentRel, Relation partRel) false, /* no old check exists */ AccessExclusiveLock, insertTriggerOid, - updateTriggerOid, - with_period); + updateTriggerOid); table_close(pkrel, NoLock); } @@ -11899,8 +11774,7 @@ transformColumnNameList(Oid relId, List *colList, * * Look up the names, attnums, and types of the primary key attributes * for the pkrel. Also return the index OID and index opclasses of the - * index supporting the primary key. Also return whether the index has - * WITHOUT OVERLAPS. + * index supporting the primary key. * * All parameters except pkrel are output parameters. Also, the function * return value is the number of attributes in the primary key. @@ -11911,7 +11785,7 @@ static int transformFkeyGetPrimaryKey(Relation pkrel, Oid *indexOid, List **attnamelist, int16 *attnums, Oid *atttypids, - Oid *opclasses, bool *pk_has_without_overlaps) + Oid *opclasses) { List *indexoidlist; ListCell *indexoidscan; @@ -11989,8 +11863,6 @@ transformFkeyGetPrimaryKey(Relation pkrel, Oid *indexOid, makeString(pstrdup(NameStr(*attnumAttName(pkrel, pkattno))))); } - *pk_has_without_overlaps = indexStruct->indisexclusion; - ReleaseSysCache(indexTuple); return i; @@ -12004,16 +11876,14 @@ transformFkeyGetPrimaryKey(Relation pkrel, Oid *indexOid, * * Returns the OID of the unique index supporting the constraint and * populates the caller-provided 'opclasses' array with the opclasses - * associated with the index columns. Also sets whether the index - * uses WITHOUT OVERLAPS. + * associated with the index columns. * * Raises an ERROR on validation failure. */ static Oid transformFkeyCheckAttrs(Relation pkrel, int numattrs, int16 *attnums, - bool with_period, Oid *opclasses, - bool *pk_has_without_overlaps) + Oid *opclasses) { Oid indexoid = InvalidOid; bool found = false; @@ -12060,12 +11930,12 @@ transformFkeyCheckAttrs(Relation pkrel, indexStruct = (Form_pg_index) GETSTRUCT(indexTuple); /* - * Must have the right number of columns; must be unique (or if - * temporal then exclusion instead) and not a partial index; forget it - * if there are any expressions, too. Invalid indexes are out as well. + * Must have the right number of columns; must be unique and not a + * partial index; forget it if there are any expressions, too. Invalid + * indexes are out as well. */ if (indexStruct->indnkeyatts == numattrs && - (with_period ? indexStruct->indisexclusion : indexStruct->indisunique) && + indexStruct->indisunique && indexStruct->indisvalid && heap_attisnull(indexTuple, Anum_pg_index_indpred, NULL) && heap_attisnull(indexTuple, Anum_pg_index_indexprs, NULL)) @@ -12103,13 +11973,6 @@ transformFkeyCheckAttrs(Relation pkrel, if (!found) break; } - /* The last attribute in the index must be the PERIOD FK part */ - if (found && with_period) - { - int16 periodattnum = attnums[numattrs - 1]; - - found = (periodattnum == indexStruct->indkey.values[numattrs - 1]); - } /* * Refuse to use a deferrable unique/primary key. This is per SQL @@ -12125,10 +11988,6 @@ transformFkeyCheckAttrs(Relation pkrel, found_deferrable = true; found = false; } - - /* We need to know whether the index has WITHOUT OVERLAPS */ - if (found) - *pk_has_without_overlaps = indexStruct->indisexclusion; } ReleaseSysCache(indexTuple); if (found) @@ -12223,8 +12082,7 @@ validateForeignKeyConstraint(char *conname, Relation rel, Relation pkrel, Oid pkindOid, - Oid constraintOid, - bool hasperiod) + Oid constraintOid) { TupleTableSlot *slot; TableScanDesc scan; @@ -12252,11 +12110,9 @@ validateForeignKeyConstraint(char *conname, /* * See if we can do it with a single LEFT JOIN query. A false result - * indicates we must proceed with the fire-the-trigger method. We can't do - * a LEFT JOIN for temporal FKs yet, but we can once we support temporal - * left joins. + * indicates we must proceed with the fire-the-trigger method. */ - if (!hasperiod && RI_Initial_Check(&trig, rel, pkrel)) + if (RI_Initial_Check(&trig, rel, pkrel)) return; /* @@ -12407,7 +12263,6 @@ createForeignKeyActionTriggers(Relation rel, Oid refRelOid, Constraint *fkconstr fk_trigger->whenClause = NULL; fk_trigger->transitionRels = NIL; fk_trigger->constrrel = NULL; - switch (fkconstraint->fk_del_action) { case FKCONSTR_ACTION_NOACTION: @@ -12468,7 +12323,6 @@ createForeignKeyActionTriggers(Relation rel, Oid refRelOid, Constraint *fkconstr fk_trigger->whenClause = NULL; fk_trigger->transitionRels = NIL; fk_trigger->constrrel = NULL; - switch (fkconstraint->fk_upd_action) { case FKCONSTR_ACTION_NOACTION: diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y index cabfba0921b..ee5292109f8 100644 --- a/src/backend/parser/gram.y +++ b/src/backend/parser/gram.y @@ -525,13 +525,12 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query); SetResetClause FunctionSetResetClause %type TableElement TypedTableElement ConstraintElem DomainConstraintElem TableFuncElement -%type columnDef columnOptions optionalPeriodName +%type columnDef columnOptions %type def_elem reloption_elem old_aggr_elem operator_def_elem %type def_arg columnElem where_clause where_or_current_clause a_expr b_expr c_expr AexprConst indirection_el opt_slice_bound columnref in_expr having_clause func_table xmltable array_expr OptWhereClause operator_def_arg -%type opt_column_and_period_list %type rowsfrom_item rowsfrom_list opt_col_def_list %type opt_ordinality opt_without_overlaps %type ExclusionConstraintList ExclusionConstraintElem @@ -765,7 +764,7 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query); OVER OVERLAPS OVERLAY OVERRIDING OWNED OWNER PARALLEL PARAMETER PARSER PARTIAL PARTITION PARTITIONS PASSING PASSWORD PATH - PERIOD PLACING PLAN PLANS POLICY + PLACING PLAN PLANS POLICY POSITION PRECEDING PRECISION PRESERVE PREPARE PREPARED PRIMARY PRIOR PRIVILEGES PROCEDURAL PROCEDURE PROCEDURES PROGRAM PUBLICATION @@ -4283,31 +4282,21 @@ ConstraintElem: NULL, yyscanner); $$ = (Node *) n; } - | FOREIGN KEY '(' columnList optionalPeriodName ')' REFERENCES qualified_name - opt_column_and_period_list key_match key_actions ConstraintAttributeSpec + | FOREIGN KEY '(' columnList ')' REFERENCES qualified_name + opt_column_list key_match key_actions ConstraintAttributeSpec { Constraint *n = makeNode(Constraint); n->contype = CONSTR_FOREIGN; n->location = @1; - n->pktable = $8; + n->pktable = $7; n->fk_attrs = $4; - if ($5) - { - n->fk_attrs = lappend(n->fk_attrs, $5); - n->fk_with_period = true; - } - n->pk_attrs = linitial($9); - if (lsecond($9)) - { - n->pk_attrs = lappend(n->pk_attrs, lsecond($9)); - n->pk_with_period = true; - } - n->fk_matchtype = $10; - n->fk_upd_action = ($11)->updateAction->action; - n->fk_del_action = ($11)->deleteAction->action; - n->fk_del_set_cols = ($11)->deleteAction->cols; - processCASbits($12, @12, "FOREIGN KEY", + n->pk_attrs = $8; + n->fk_matchtype = $9; + n->fk_upd_action = ($10)->updateAction->action; + n->fk_del_action = ($10)->deleteAction->action; + n->fk_del_set_cols = ($10)->deleteAction->cols; + processCASbits($11, @11, "FOREIGN KEY", &n->deferrable, &n->initdeferred, &n->skip_validation, NULL, yyscanner); @@ -4389,16 +4378,6 @@ columnList: | columnList ',' columnElem { $$ = lappend($1, $3); } ; -optionalPeriodName: - ',' PERIOD columnElem { $$ = $3; } - | /*EMPTY*/ { $$ = NULL; } - ; - -opt_column_and_period_list: - '(' columnList optionalPeriodName ')' { $$ = list_make2($2, $3); } - | /*EMPTY*/ { $$ = list_make2(NIL, NULL); } - ; - columnElem: ColId { $$ = (Node *) makeString($1); @@ -17793,7 +17772,6 @@ unreserved_keyword: | PASSING | PASSWORD | PATH - | PERIOD | PLAN | PLANS | POLICY @@ -18420,7 +18398,6 @@ bare_label_keyword: | PASSING | PASSWORD | PATH - | PERIOD | PLACING | PLAN | PLANS diff --git a/src/backend/utils/adt/ri_triggers.c b/src/backend/utils/adt/ri_triggers.c index bbc2e3e2f0a..62601a6d80c 100644 --- a/src/backend/utils/adt/ri_triggers.c +++ b/src/backend/utils/adt/ri_triggers.c @@ -30,7 +30,6 @@ #include "access/xact.h" #include "catalog/pg_collation.h" #include "catalog/pg_constraint.h" -#include "catalog/pg_proc.h" #include "commands/trigger.h" #include "executor/executor.h" #include "executor/spi.h" @@ -46,7 +45,6 @@ #include "utils/inval.h" #include "utils/lsyscache.h" #include "utils/memutils.h" -#include "utils/rangetypes.h" #include "utils/rel.h" #include "utils/rls.h" #include "utils/ruleutils.h" @@ -98,9 +96,6 @@ * * Information extracted from an FK pg_constraint entry. This is cached in * ri_constraint_cache. - * - * Note that pf/pp/ff_eq_oprs may hold the overlaps operator instead of equals - * for the PERIOD part of a temporal foreign key. */ typedef struct RI_ConstraintInfo { @@ -120,15 +115,12 @@ typedef struct RI_ConstraintInfo int16 confdelsetcols[RI_MAX_NUMKEYS]; /* attnums of cols to set on * delete */ char confmatchtype; /* foreign key's match type */ - bool hasperiod; /* if the foreign key uses PERIOD */ int nkeys; /* number of key columns */ int16 pk_attnums[RI_MAX_NUMKEYS]; /* attnums of referenced cols */ int16 fk_attnums[RI_MAX_NUMKEYS]; /* attnums of referencing cols */ Oid pf_eq_oprs[RI_MAX_NUMKEYS]; /* equality operators (PK = FK) */ Oid pp_eq_oprs[RI_MAX_NUMKEYS]; /* equality operators (PK = PK) */ Oid ff_eq_oprs[RI_MAX_NUMKEYS]; /* equality operators (FK = FK) */ - Oid period_contained_by_oper; /* anyrange <@ anyrange */ - Oid agged_period_contained_by_oper; /* fkattr <@ range_agg(pkattr) */ dlist_node valid_link; /* Link in list of valid entries */ } RI_ConstraintInfo; @@ -207,8 +199,8 @@ static void ri_BuildQueryKey(RI_QueryKey *key, int32 constr_queryno); static bool ri_KeysEqual(Relation rel, TupleTableSlot *oldslot, TupleTableSlot *newslot, const RI_ConstraintInfo *riinfo, bool rel_is_pk); -static bool ri_CompareWithCast(Oid eq_opr, Oid typeid, - Datum lhs, Datum rhs); +static bool ri_AttributesEqual(Oid eq_opr, Oid typeid, + Datum oldvalue, Datum newvalue); static void ri_InitHashTables(void); static void InvalidateConstraintCacheCallBack(Datum arg, int cacheid, uint32 hashvalue); @@ -370,41 +362,14 @@ RI_FKey_check(TriggerData *trigdata) * FOR KEY SHARE OF x * The type id's for the $ parameters are those of the * corresponding FK attributes. - * - * But for temporal FKs we need to make sure - * the FK's range is completely covered. - * So we use this query instead: - * SELECT 1 - * FROM ( - * SELECT pkperiodatt AS r - * FROM [ONLY] pktable x - * WHERE pkatt1 = $1 [AND ...] - * AND pkperiodatt && $n - * FOR KEY SHARE OF x - * ) x1 - * HAVING $n <@ range_agg(x1.r) - * Note if FOR KEY SHARE ever allows GROUP BY and HAVING - * we can make this a bit simpler. * ---------- */ initStringInfo(&querybuf); pk_only = pk_rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE ? "" : "ONLY "; quoteRelationName(pkrelname, pk_rel); - if (riinfo->hasperiod) - { - quoteOneName(attname, - RIAttName(pk_rel, riinfo->pk_attnums[riinfo->nkeys - 1])); - - appendStringInfo(&querybuf, - "SELECT 1 FROM (SELECT %s AS r FROM %s%s x", - attname, pk_only, pkrelname); - } - else - { - appendStringInfo(&querybuf, "SELECT 1 FROM %s%s x", - pk_only, pkrelname); - } + appendStringInfo(&querybuf, "SELECT 1 FROM %s%s x", + pk_only, pkrelname); querysep = "WHERE"; for (int i = 0; i < riinfo->nkeys; i++) { @@ -422,18 +387,6 @@ RI_FKey_check(TriggerData *trigdata) queryoids[i] = fk_type; } appendStringInfoString(&querybuf, " FOR KEY SHARE OF x"); - if (riinfo->hasperiod) - { - Oid fk_type = RIAttType(fk_rel, riinfo->fk_attnums[riinfo->nkeys - 1]); - - appendStringInfoString(&querybuf, ") x1 HAVING "); - sprintf(paramname, "$%d", riinfo->nkeys); - ri_GenerateQual(&querybuf, "", - paramname, fk_type, - riinfo->agged_period_contained_by_oper, - "pg_catalog.range_agg", ANYMULTIRANGEOID); - appendStringInfoString(&querybuf, "(x1.r)"); - } /* Prepare and save the plan */ qplan = ri_PlanCheck(querybuf.data, riinfo->nkeys, queryoids, @@ -541,39 +494,14 @@ ri_Check_Pk_Match(Relation pk_rel, Relation fk_rel, * FOR KEY SHARE OF x * The type id's for the $ parameters are those of the * PK attributes themselves. - * But for temporal FKs we need to make sure - * the FK's range is completely covered. - * So we use this query instead: - * SELECT 1 - * FROM ( - * SELECT pkperiodatt AS r - * FROM [ONLY] pktable x - * WHERE pkatt1 = $1 [AND ...] - * AND pkperiodatt && $n - * FOR KEY SHARE OF x - * ) x1 - * HAVING $n <@ range_agg(x1.r) - * Note if FOR KEY SHARE ever allows GROUP BY and HAVING - * we can make this a bit simpler. * ---------- */ initStringInfo(&querybuf); pk_only = pk_rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE ? "" : "ONLY "; quoteRelationName(pkrelname, pk_rel); - if (riinfo->hasperiod) - { - quoteOneName(attname, RIAttName(pk_rel, riinfo->pk_attnums[riinfo->nkeys - 1])); - - appendStringInfo(&querybuf, - "SELECT 1 FROM (SELECT %s AS r FROM %s%s x", - attname, pk_only, pkrelname); - } - else - { - appendStringInfo(&querybuf, "SELECT 1 FROM %s%s x", - pk_only, pkrelname); - } + appendStringInfo(&querybuf, "SELECT 1 FROM %s%s x", + pk_only, pkrelname); querysep = "WHERE"; for (int i = 0; i < riinfo->nkeys; i++) { @@ -590,18 +518,6 @@ ri_Check_Pk_Match(Relation pk_rel, Relation fk_rel, queryoids[i] = pk_type; } appendStringInfoString(&querybuf, " FOR KEY SHARE OF x"); - if (riinfo->hasperiod) - { - Oid fk_type = RIAttType(fk_rel, riinfo->fk_attnums[riinfo->nkeys - 1]); - - appendStringInfoString(&querybuf, ") x1 HAVING "); - sprintf(paramname, "$%d", riinfo->nkeys); - ri_GenerateQual(&querybuf, "", - paramname, fk_type, - riinfo->agged_period_contained_by_oper, - "pg_catalog.range_agg", ANYMULTIRANGEOID); - appendStringInfoString(&querybuf, "(x1.r)"); - } /* Prepare and save the plan */ qplan = ri_PlanCheck(querybuf.data, riinfo->nkeys, queryoids, @@ -2246,7 +2162,6 @@ ri_LoadConstraintInfo(Oid constraintOid) riinfo->confupdtype = conForm->confupdtype; riinfo->confdeltype = conForm->confdeltype; riinfo->confmatchtype = conForm->confmatchtype; - riinfo->hasperiod = conForm->conperiod; DeconstructFkConstraintRow(tup, &riinfo->nkeys, @@ -2258,20 +2173,6 @@ ri_LoadConstraintInfo(Oid constraintOid) &riinfo->ndelsetcols, riinfo->confdelsetcols); - /* - * For temporal FKs, get the operators and functions we need. We ask the - * opclass of the PK element for these. This all gets cached (as does the - * generated plan), so there's no performance issue. - */ - if (riinfo->hasperiod) - { - Oid opclass = get_index_column_opclass(conForm->conindid, riinfo->nkeys); - - FindFKPeriodOpers(opclass, - &riinfo->period_contained_by_oper, - &riinfo->agged_period_contained_by_oper); - } - ReleaseSysCache(tup); /* @@ -2883,10 +2784,7 @@ ri_HashPreparedPlan(RI_QueryKey *key, SPIPlanPtr plan) /* * ri_KeysEqual - * - * Check if all key values in OLD and NEW are "equivalent": - * For normal FKs we check for equality. - * For temporal FKs we check that the PK side is a superset of its old value, - * or the FK side is a subset of its old value. + * Check if all key values in OLD and NEW are equal. * * Note: at some point we might wish to redefine this as checking for * "IS NOT DISTINCT" rather than "=", that is, allow two nulls to be @@ -2942,25 +2840,13 @@ ri_KeysEqual(Relation rel, TupleTableSlot *oldslot, TupleTableSlot *newslot, } else { - Oid eq_opr; - - /* - * When comparing the PERIOD columns we can skip the check - * whenever the referencing column stayed equal or shrank, so test - * with the contained-by operator instead. - */ - if (riinfo->hasperiod && i == riinfo->nkeys - 1) - eq_opr = riinfo->period_contained_by_oper; - else - eq_opr = riinfo->ff_eq_oprs[i]; - /* * For the FK table, compare with the appropriate equality * operator. Changes that compare equal will still satisfy the * constraint after the update. */ - if (!ri_CompareWithCast(eq_opr, RIAttType(rel, attnums[i]), - newvalue, oldvalue)) + if (!ri_AttributesEqual(riinfo->ff_eq_oprs[i], RIAttType(rel, attnums[i]), + oldvalue, newvalue)) return false; } } @@ -2970,31 +2856,29 @@ ri_KeysEqual(Relation rel, TupleTableSlot *oldslot, TupleTableSlot *newslot, /* - * ri_CompareWithCast - + * ri_AttributesEqual - * - * Call the appropriate comparison operator for two values. - * Normally this is equality, but for the PERIOD part of foreign keys - * it is ContainedBy, so the order of lhs vs rhs is significant. + * Call the appropriate equality comparison operator for two values. * * NB: we have already checked that neither value is null. */ static bool -ri_CompareWithCast(Oid eq_opr, Oid typeid, - Datum lhs, Datum rhs) +ri_AttributesEqual(Oid eq_opr, Oid typeid, + Datum oldvalue, Datum newvalue) { RI_CompareHashEntry *entry = ri_HashCompareOp(eq_opr, typeid); /* Do we need to cast the values? */ if (OidIsValid(entry->cast_func_finfo.fn_oid)) { - lhs = FunctionCall3(&entry->cast_func_finfo, - lhs, - Int32GetDatum(-1), /* typmod */ - BoolGetDatum(false)); /* implicit coercion */ - rhs = FunctionCall3(&entry->cast_func_finfo, - rhs, - Int32GetDatum(-1), /* typmod */ - BoolGetDatum(false)); /* implicit coercion */ + oldvalue = FunctionCall3(&entry->cast_func_finfo, + oldvalue, + Int32GetDatum(-1), /* typmod */ + BoolGetDatum(false)); /* implicit coercion */ + newvalue = FunctionCall3(&entry->cast_func_finfo, + newvalue, + Int32GetDatum(-1), /* typmod */ + BoolGetDatum(false)); /* implicit coercion */ } /* @@ -3008,16 +2892,10 @@ ri_CompareWithCast(Oid eq_opr, Oid typeid, * open), we'll just use the default collation here, which could lead to * some false negatives. All this would break if we ever allow * database-wide collations to be nondeterministic. - * - * With range/multirangetypes, the collation of the base type is stored as - * part of the rangetype (pg_range.rngcollation), and always used, so - * there is no danger of inconsistency even using a non-equals operator. - * But if we support arbitrary types with PERIOD, we should perhaps just - * always force a re-check. */ return DatumGetBool(FunctionCall2Coll(&entry->eq_opr_finfo, DEFAULT_COLLATION_OID, - lhs, rhs)); + oldvalue, newvalue)); } /* @@ -3072,7 +2950,7 @@ ri_HashCompareOp(Oid eq_opr, Oid typeid) * the cast function to get to the operator's input type. * * XXX eventually it would be good to support array-coercion cases - * here and in ri_CompareWithCast(). At the moment there is no point + * here and in ri_AttributesEqual(). At the moment there is no point * because cases involving nonidentical array types will be rejected * at constraint creation time. * diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c index 9a6d372414c..d4526487da9 100644 --- a/src/backend/utils/adt/ruleutils.c +++ b/src/backend/utils/adt/ruleutils.c @@ -338,7 +338,7 @@ static char *pg_get_viewdef_worker(Oid viewoid, int prettyFlags, int wrapColumn); static char *pg_get_triggerdef_worker(Oid trigid, bool pretty); static int decompile_column_index_array(Datum column_index_array, Oid relId, - bool withPeriod, StringInfo buf); + StringInfo buf); static char *pg_get_ruledef_worker(Oid ruleoid, int prettyFlags); static char *pg_get_indexdef_worker(Oid indexrelid, int colno, const Oid *excludeOps, @@ -2260,8 +2260,7 @@ pg_get_constraintdef_worker(Oid constraintId, bool fullCommand, val = SysCacheGetAttrNotNull(CONSTROID, tup, Anum_pg_constraint_conkey); - /* If it is a temporal foreign key then it uses PERIOD. */ - decompile_column_index_array(val, conForm->conrelid, conForm->conperiod, &buf); + decompile_column_index_array(val, conForm->conrelid, &buf); /* add foreign relation name */ appendStringInfo(&buf, ") REFERENCES %s(", @@ -2272,7 +2271,7 @@ pg_get_constraintdef_worker(Oid constraintId, bool fullCommand, val = SysCacheGetAttrNotNull(CONSTROID, tup, Anum_pg_constraint_confkey); - decompile_column_index_array(val, conForm->confrelid, conForm->conperiod, &buf); + decompile_column_index_array(val, conForm->confrelid, &buf); appendStringInfoChar(&buf, ')'); @@ -2358,7 +2357,7 @@ pg_get_constraintdef_worker(Oid constraintId, bool fullCommand, if (!isnull) { appendStringInfoString(&buf, " ("); - decompile_column_index_array(val, conForm->conrelid, false, &buf); + decompile_column_index_array(val, conForm->conrelid, &buf); appendStringInfoChar(&buf, ')'); } @@ -2393,7 +2392,7 @@ pg_get_constraintdef_worker(Oid constraintId, bool fullCommand, val = SysCacheGetAttrNotNull(CONSTROID, tup, Anum_pg_constraint_conkey); - keyatts = decompile_column_index_array(val, conForm->conrelid, false, &buf); + keyatts = decompile_column_index_array(val, conForm->conrelid, &buf); if (conForm->conperiod) appendStringInfoString(&buf, " WITHOUT OVERLAPS"); @@ -2577,7 +2576,7 @@ pg_get_constraintdef_worker(Oid constraintId, bool fullCommand, */ static int decompile_column_index_array(Datum column_index_array, Oid relId, - bool withPeriod, StringInfo buf) + StringInfo buf) { Datum *keys; int nKeys; @@ -2596,9 +2595,7 @@ decompile_column_index_array(Datum column_index_array, Oid relId, if (j == 0) appendStringInfoString(buf, quote_identifier(colName)); else - appendStringInfo(buf, ", %s%s", - (withPeriod && j == nKeys - 1) ? "PERIOD " : "", - quote_identifier(colName)); + appendStringInfo(buf, ", %s", quote_identifier(colName)); } return nKeys; diff --git a/src/include/catalog/pg_constraint.h b/src/include/catalog/pg_constraint.h index 115217a6162..96c00624b15 100644 --- a/src/include/catalog/pg_constraint.h +++ b/src/include/catalog/pg_constraint.h @@ -108,8 +108,8 @@ CATALOG(pg_constraint,2606,ConstraintRelationId) bool connoinherit; /* - * For primary keys, unique constraints, and foreign keys, signifies the - * last column uses overlaps instead of equals. + * For primary keys and unique constraints, signifies the last column uses + * overlaps instead of equals. */ bool conperiod; @@ -127,22 +127,20 @@ CATALOG(pg_constraint,2606,ConstraintRelationId) int16 confkey[1]; /* - * If a foreign key, the OIDs of the PK = FK equality/overlap operators - * for each column of the constraint + * If a foreign key, the OIDs of the PK = FK equality operators for each + * column of the constraint */ Oid conpfeqop[1] BKI_LOOKUP(pg_operator); /* - * If a foreign key, the OIDs of the PK = PK equality/overlap operators - * for each column of the constraint (i.e., equality for the referenced - * columns) + * If a foreign key, the OIDs of the PK = PK equality operators for each + * column of the constraint (i.e., equality for the referenced columns) */ Oid conppeqop[1] BKI_LOOKUP(pg_operator); /* - * If a foreign key, the OIDs of the FK = FK equality/overlap operators - * for each column of the constraint (i.e., equality for the referencing - * columns) + * If a foreign key, the OIDs of the FK = FK equality operators for each + * column of the constraint (i.e., equality for the referencing columns) */ Oid conffeqop[1] BKI_LOOKUP(pg_operator); @@ -279,9 +277,6 @@ extern void DeconstructFkConstraintRow(HeapTuple tuple, int *numfks, AttrNumber *conkey, AttrNumber *confkey, Oid *pf_eq_oprs, Oid *pp_eq_oprs, Oid *ff_eq_oprs, int *num_fk_del_set_cols, AttrNumber *fk_del_set_cols); -extern void FindFKPeriodOpers(Oid opclass, - Oid *containedbyoperoid, - Oid *aggedcontainedbyoperoid); extern bool check_functional_grouping(Oid relid, Index varno, Index varlevelsup, diff --git a/src/include/commands/defrem.h b/src/include/commands/defrem.h index 5fd095ea177..0c53d67d3ee 100644 --- a/src/include/commands/defrem.h +++ b/src/include/commands/defrem.h @@ -50,7 +50,7 @@ extern bool CheckIndexCompatible(Oid oldId, extern Oid GetDefaultOpClass(Oid type_id, Oid am_id); extern Oid ResolveOpClass(const List *opclass, Oid attrType, const char *accessMethodName, Oid accessMethodId); -extern void GetOperatorFromWellKnownStrategy(Oid opclass, Oid rhstype, +extern void GetOperatorFromWellKnownStrategy(Oid opclass, Oid atttype, Oid *opid, StrategyNumber *strat); /* commands/functioncmds.c */ diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index dcfd080dd5c..fe51a308aa7 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -2767,8 +2767,6 @@ typedef struct Constraint RangeVar *pktable; /* Primary key table */ List *fk_attrs; /* Attributes of foreign key */ List *pk_attrs; /* Corresponding attrs in PK table */ - bool fk_with_period; /* Last attribute of FK uses PERIOD */ - bool pk_with_period; /* Last attribute of PK uses PERIOD */ char fk_matchtype; /* FULL, PARTIAL, SIMPLE */ char fk_upd_action; /* ON UPDATE action */ char fk_del_action; /* ON DELETE action */ diff --git a/src/include/parser/kwlist.h b/src/include/parser/kwlist.h index f9a4afd4723..f7fe834cf45 100644 --- a/src/include/parser/kwlist.h +++ b/src/include/parser/kwlist.h @@ -339,7 +339,6 @@ PG_KEYWORD("partitions", PARTITIONS, UNRESERVED_KEYWORD, BARE_LABEL) PG_KEYWORD("passing", PASSING, UNRESERVED_KEYWORD, BARE_LABEL) PG_KEYWORD("password", PASSWORD, UNRESERVED_KEYWORD, BARE_LABEL) PG_KEYWORD("path", PATH, UNRESERVED_KEYWORD, BARE_LABEL) -PG_KEYWORD("period", PERIOD, UNRESERVED_KEYWORD, BARE_LABEL) PG_KEYWORD("placing", PLACING, RESERVED_KEYWORD, BARE_LABEL) PG_KEYWORD("plan", PLAN, UNRESERVED_KEYWORD, BARE_LABEL) PG_KEYWORD("plans", PLANS, UNRESERVED_KEYWORD, BARE_LABEL) diff --git a/src/test/regress/expected/without_overlaps.out b/src/test/regress/expected/without_overlaps.out index f6fe8f09369..9fb20395a6a 100644 --- a/src/test/regress/expected/without_overlaps.out +++ b/src/test/regress/expected/without_overlaps.out @@ -99,51 +99,21 @@ CREATE TABLE temporal_rng3 ( ALTER TABLE temporal_rng3 DROP CONSTRAINT temporal_rng3_pk; DROP TABLE temporal_rng3; DROP TYPE textrange2; --- PK with one column plus a multirange: +-- PK with a multirange: CREATE TABLE temporal_mltrng ( id int4range, - valid_at datemultirange, + valid_at tsmultirange, CONSTRAINT temporal_mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) ); \d temporal_mltrng - Table "public.temporal_mltrng" - Column | Type | Collation | Nullable | Default -----------+----------------+-----------+----------+--------- - id | int4range | | not null | - valid_at | datemultirange | | not null | + Table "public.temporal_mltrng" + Column | Type | Collation | Nullable | Default +----------+--------------+-----------+----------+--------- + id | int4range | | not null | + valid_at | tsmultirange | | not null | Indexes: "temporal_mltrng_pk" PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) --- PK with two columns plus a multirange: --- We don't drop this table because tests below also need multiple scalar columns. -CREATE TABLE temporal_mltrng2 ( - id1 int4range, - id2 int4range, - valid_at datemultirange, - CONSTRAINT temporal_mltrng2_pk PRIMARY KEY (id1, id2, valid_at WITHOUT OVERLAPS) -); -\d temporal_mltrng2 - Table "public.temporal_mltrng2" - Column | Type | Collation | Nullable | Default -----------+----------------+-----------+----------+--------- - id1 | int4range | | not null | - id2 | int4range | | not null | - valid_at | datemultirange | | not null | -Indexes: - "temporal_mltrng2_pk" PRIMARY KEY (id1, id2, valid_at WITHOUT OVERLAPS) - -SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conname = 'temporal_mltrng2_pk'; - pg_get_constraintdef ---------------------------------------------------- - PRIMARY KEY (id1, id2, valid_at WITHOUT OVERLAPS) -(1 row) - -SELECT pg_get_indexdef(conindid, 0, true) FROM pg_constraint WHERE conname = 'temporal_mltrng2_pk'; - pg_get_indexdef ---------------------------------------------------------------------------------------------- - CREATE UNIQUE INDEX temporal_mltrng2_pk ON temporal_mltrng2 USING gist (id1, id2, valid_at) -(1 row) - -- UNIQUE with no columns just WITHOUT OVERLAPS: CREATE TABLE temporal_rng3 ( valid_at daterange, @@ -320,30 +290,6 @@ DETAIL: Failing row contains (null, [2018-01-01,2018-01-05)). INSERT INTO temporal_rng (id, valid_at) VALUES ('[3,4)', NULL); ERROR: null value in column "valid_at" of relation "temporal_rng" violates not-null constraint DETAIL: Failing row contains ([3,4), null). --- okay: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[1,2)', datemultirange(daterange('2018-01-02', '2018-02-03'))); -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[1,2)', datemultirange(daterange('2018-03-03', '2018-04-04'))); -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[2,3)', datemultirange(daterange('2018-01-01', '2018-01-05'))); -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[3,4)', datemultirange(daterange('2018-01-01', NULL))); --- should fail: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[1,2)', datemultirange(daterange('2018-01-01', '2018-01-05'))); -ERROR: conflicting key value violates exclusion constraint "temporal_mltrng_pk" -DETAIL: Key (id, valid_at)=([1,2), {[2018-01-01,2018-01-05)}) conflicts with existing key (id, valid_at)=([1,2), {[2018-01-02,2018-02-03)}). -INSERT INTO temporal_mltrng (id, valid_at) VALUES (NULL, datemultirange(daterange('2018-01-01', '2018-01-05'))); -ERROR: null value in column "id" of relation "temporal_mltrng" violates not-null constraint -DETAIL: Failing row contains (null, {[2018-01-01,2018-01-05)}). -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[3,4)', NULL); -ERROR: null value in column "valid_at" of relation "temporal_mltrng" violates not-null constraint -DETAIL: Failing row contains ([3,4), null). -SELECT * FROM temporal_mltrng ORDER BY id, valid_at; - id | valid_at --------+--------------------------- - [1,2) | {[2018-01-02,2018-02-03)} - [1,2) | {[2018-03-03,2018-04-04)} - [2,3) | {[2018-01-01,2018-01-05)} - [3,4) | {[2018-01-01,)} -(4 rows) - -- -- test a range with both a PK and a UNIQUE constraint -- @@ -448,1095 +394,4 @@ SELECT * FROM tp2 ORDER BY id, valid_at; (1 row) DROP TABLE temporal_partitioned; --- --- test FK dependencies --- --- can't drop a range referenced by an FK, unless with CASCADE -CREATE TABLE temporal3 ( - id int4range, - valid_at daterange, - CONSTRAINT temporal3_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal3 (id, PERIOD valid_at) -); -ALTER TABLE temporal3 DROP COLUMN valid_at; -ERROR: cannot drop column valid_at of table temporal3 because other objects depend on it -DETAIL: constraint temporal_fk_rng2rng_fk on table temporal_fk_rng2rng depends on column valid_at of table temporal3 -HINT: Use DROP ... CASCADE to drop the dependent objects too. -ALTER TABLE temporal3 DROP COLUMN valid_at CASCADE; -NOTICE: drop cascades to constraint temporal_fk_rng2rng_fk on table temporal_fk_rng2rng -DROP TABLE temporal_fk_rng2rng; -DROP TABLE temporal3; --- --- test FOREIGN KEY, range references range --- --- test table setup -DROP TABLE temporal_rng; -CREATE TABLE temporal_rng (id int4range, valid_at daterange); -ALTER TABLE temporal_rng - ADD CONSTRAINT temporal_rng_pk - PRIMARY KEY (id, valid_at WITHOUT OVERLAPS); --- Can't create a FK with a mismatched range type -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at int4range, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk2 PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk2 FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at) -); -ERROR: foreign key constraint "temporal_fk_rng2rng_fk2" cannot be implemented -DETAIL: Key columns "valid_at" and "valid_at" are of incompatible types: int4range and daterange. --- works: PERIOD for both referenced and referencing -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at) -); -DROP TABLE temporal_fk_rng2rng; --- with mismatched PERIOD columns: --- (parent_id, PERIOD valid_at) REFERENCES (id, valid_at) --- REFERENCES part should specify PERIOD -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, valid_at) -); -ERROR: foreign key uses PERIOD on the referencing table but not the referenced table --- (parent_id, valid_at) REFERENCES (id, valid_at) --- both should specify PERIOD: -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_rng (id, valid_at) -); -ERROR: foreign key must use PERIOD when referencing a primary using WITHOUT OVERLAPS --- (parent_id, valid_at) REFERENCES (id, PERIOD valid_at) --- FOREIGN KEY part should specify PERIOD -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at) -); -ERROR: foreign key uses PERIOD on the referenced table but not the referencing table --- (parent_id, valid_at) REFERENCES [implicit] --- FOREIGN KEY part should specify PERIOD -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_rng -); -ERROR: foreign key uses PERIOD on the referenced table but not the referencing table --- (parent_id, PERIOD valid_at) REFERENCES (id) -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id) -); -ERROR: foreign key uses PERIOD on the referencing table but not the referenced table --- (parent_id) REFERENCES (id, PERIOD valid_at) -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id) - REFERENCES temporal_rng (id, PERIOD valid_at) -); -ERROR: foreign key uses PERIOD on the referenced table but not the referencing table --- with inferred PK on the referenced table: --- (parent_id, PERIOD valid_at) REFERENCES [implicit] -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng -); -DROP TABLE temporal_fk_rng2rng; --- (parent_id) REFERENCES [implicit] -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id) - REFERENCES temporal_rng -); -ERROR: foreign key uses PERIOD on the referenced table but not the referencing table --- should fail because of duplicate referenced columns: -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD parent_id) - REFERENCES temporal_rng (id, PERIOD id) -); -ERROR: foreign key referenced-columns list must not contain duplicates --- Two scalar columns -DROP TABLE temporal_rng2; -CREATE TABLE temporal_rng2 ( - id1 int4range, - id2 int4range, - valid_at daterange, - CONSTRAINT temporal_rng2_pk PRIMARY KEY (id1, id2, valid_at WITHOUT OVERLAPS) -); -CREATE TABLE temporal_fk2_rng2rng ( - id int4range, - valid_at daterange, - parent_id1 int4range, - parent_id2 int4range, - CONSTRAINT temporal_fk2_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk2_rng2rng_fk FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) - REFERENCES temporal_rng2 (id1, id2, PERIOD valid_at) -); -\d temporal_fk2_rng2rng - Table "public.temporal_fk2_rng2rng" - Column | Type | Collation | Nullable | Default -------------+-----------+-----------+----------+--------- - id | int4range | | not null | - valid_at | daterange | | not null | - parent_id1 | int4range | | | - parent_id2 | int4range | | | -Indexes: - "temporal_fk2_rng2rng_pk" PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -Foreign-key constraints: - "temporal_fk2_rng2rng_fk" FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) REFERENCES temporal_rng2(id1, id2, PERIOD valid_at) - -DROP TABLE temporal_fk2_rng2rng; --- --- test ALTER TABLE ADD CONSTRAINT --- -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at); --- Two scalar columns: -CREATE TABLE temporal_fk2_rng2rng ( - id int4range, - valid_at daterange, - parent_id1 int4range, - parent_id2 int4range, - CONSTRAINT temporal_fk2_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -ALTER TABLE temporal_fk2_rng2rng - ADD CONSTRAINT temporal_fk2_rng2rng_fk - FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) - REFERENCES temporal_rng2 (id1, id2, PERIOD valid_at); -\d temporal_fk2_rng2rng - Table "public.temporal_fk2_rng2rng" - Column | Type | Collation | Nullable | Default -------------+-----------+-----------+----------+--------- - id | int4range | | not null | - valid_at | daterange | | not null | - parent_id1 | int4range | | | - parent_id2 | int4range | | | -Indexes: - "temporal_fk2_rng2rng_pk" PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -Foreign-key constraints: - "temporal_fk2_rng2rng_fk" FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) REFERENCES temporal_rng2(id1, id2, PERIOD valid_at) - --- with inferred PK on the referenced table, and wrong column type: -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk, - ALTER COLUMN valid_at TYPE tsrange USING tsrange(lower(valid_at), upper(valid_at)); -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; -ERROR: foreign key constraint "temporal_fk_rng2rng_fk" cannot be implemented -DETAIL: Key columns "valid_at" and "valid_at" are of incompatible types: tsrange and daterange. -ALTER TABLE temporal_fk_rng2rng - ALTER COLUMN valid_at TYPE daterange USING daterange(lower(valid_at)::date, upper(valid_at)::date); --- with inferred PK on the referenced table: -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; --- should fail because of duplicate referenced columns: -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk2 - FOREIGN KEY (parent_id, PERIOD parent_id) - REFERENCES temporal_rng (id, PERIOD id); -ERROR: foreign key referenced-columns list must not contain duplicates --- --- test with rows already --- -DELETE FROM temporal_fk_rng2rng; -DELETE FROM temporal_rng; -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[1,2)', daterange('2018-01-02', '2018-02-03')), - ('[1,2)', daterange('2018-03-03', '2018-04-04')), - ('[2,3)', daterange('2018-01-01', '2018-01-05')), - ('[3,4)', daterange('2018-01-01', NULL)); -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[1,2)', daterange('2018-01-02', '2018-02-01'), '[1,2)'); -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[2,3)', daterange('2018-01-02', '2018-04-01'), '[1,2)'); --- should fail: -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; -ERROR: insert or update on table "temporal_fk_rng2rng" violates foreign key constraint "temporal_fk_rng2rng_fk" -DETAIL: Key (parent_id, valid_at)=([1,2), [2018-01-02,2018-04-01)) is not present in table "temporal_rng". --- okay again: -DELETE FROM temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; --- --- test pg_get_constraintdef --- -SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conname = 'temporal_fk_rng2rng_fk'; - pg_get_constraintdef ---------------------------------------------------------------------------------------- - FOREIGN KEY (parent_id, PERIOD valid_at) REFERENCES temporal_rng(id, PERIOD valid_at) -(1 row) - --- --- test FK referencing inserts --- -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[1,2)', daterange('2018-01-02', '2018-02-01'), '[1,2)'); --- should fail: -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[2,3)', daterange('2018-01-02', '2018-04-01'), '[1,2)'); -ERROR: insert or update on table "temporal_fk_rng2rng" violates foreign key constraint "temporal_fk_rng2rng_fk" -DETAIL: Key (parent_id, valid_at)=([1,2), [2018-01-02,2018-04-01)) is not present in table "temporal_rng". --- now it should work: -INSERT INTO temporal_rng (id, valid_at) VALUES ('[1,2)', daterange('2018-02-03', '2018-03-03')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[2,3)', daterange('2018-01-02', '2018-04-01'), '[1,2)'); --- --- test FK referencing updates --- -UPDATE temporal_fk_rng2rng SET valid_at = daterange('2018-01-02', '2018-03-01') WHERE id = '[1,2)'; --- should fail: -UPDATE temporal_fk_rng2rng SET valid_at = daterange('2018-01-02', '2018-05-01') WHERE id = '[1,2)'; -ERROR: insert or update on table "temporal_fk_rng2rng" violates foreign key constraint "temporal_fk_rng2rng_fk" -DETAIL: Key (parent_id, valid_at)=([1,2), [2018-01-02,2018-05-01)) is not present in table "temporal_rng". -UPDATE temporal_fk_rng2rng SET parent_id = '[8,9)' WHERE id = '[1,2)'; -ERROR: insert or update on table "temporal_fk_rng2rng" violates foreign key constraint "temporal_fk_rng2rng_fk" -DETAIL: Key (parent_id, valid_at)=([8,9), [2018-01-02,2018-03-01)) is not present in table "temporal_rng". --- ALTER FK DEFERRABLE -BEGIN; - INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); - INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES - ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - DELETE FROM temporal_rng WHERE id = '[5,6)'; --should not fail yet. -COMMIT; -- should fail here. -ERROR: update or delete on table "temporal_rng" violates foreign key constraint "temporal_fk_rng2rng_fk" on table "temporal_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_fk_rng2rng". --- --- test FK referenced updates NO ACTION --- -TRUNCATE temporal_rng, temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON UPDATE NO ACTION; --- a PK update that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') WHERE id = '[5,6)'; --- a PK update that succeeds even though the numeric id is referenced because the range isn't: -DELETE FROM temporal_rng WHERE id = '[5,6)'; -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -UPDATE temporal_rng SET valid_at = daterange('2016-02-01', '2016-03-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- a PK update that fails because both are referenced: -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "temporal_rng" violates foreign key constraint "temporal_fk_rng2rng_fk" on table "temporal_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_fk_rng2rng". --- a PK update that fails because both are referenced, but not 'til commit: -BEGIN; - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -COMMIT; -ERROR: update or delete on table "temporal_rng" violates foreign key constraint "temporal_fk_rng2rng_fk" on table "temporal_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_fk_rng2rng". --- changing the scalar part fails: -UPDATE temporal_rng SET id = '[7,8)' -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "temporal_rng" violates foreign key constraint "temporal_fk_rng2rng_fk" on table "temporal_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_fk_rng2rng". --- then delete the objecting FK record and the same PK update succeeds: -DELETE FROM temporal_fk_rng2rng WHERE id = '[3,4)'; -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); --- --- test FK referenced updates RESTRICT --- -TRUNCATE temporal_rng, temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON UPDATE RESTRICT; --- a PK update that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') WHERE id = '[5,6)'; --- a PK update that succeeds even though the numeric id is referenced because the range isn't: -DELETE FROM temporal_rng WHERE id = '[5,6)'; -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -UPDATE temporal_rng SET valid_at = daterange('2016-02-01', '2016-03-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- a PK update that fails because both are referenced (even before commit): -BEGIN; - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "temporal_rng" violates foreign key constraint "temporal_fk_rng2rng_fk" on table "temporal_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_fk_rng2rng". -ROLLBACK; --- changing the scalar part fails: -UPDATE temporal_rng SET id = '[7,8)' -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "temporal_rng" violates foreign key constraint "temporal_fk_rng2rng_fk" on table "temporal_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_fk_rng2rng". --- then delete the objecting FK record and the same PK update succeeds: -DELETE FROM temporal_fk_rng2rng WHERE id = '[3,4)'; -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); --- --- test FK referenced deletes NO ACTION --- -TRUNCATE temporal_rng, temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; --- a PK delete that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -DELETE FROM temporal_rng WHERE id = '[5,6)'; --- a PK delete that succeeds even though the numeric id is referenced because the range isn't: -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- a PK delete that fails because both are referenced: -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "temporal_rng" violates foreign key constraint "temporal_fk_rng2rng_fk" on table "temporal_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_fk_rng2rng". --- a PK delete that fails because both are referenced, but not 'til commit: -BEGIN; - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -COMMIT; -ERROR: update or delete on table "temporal_rng" violates foreign key constraint "temporal_fk_rng2rng_fk" on table "temporal_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_fk_rng2rng". --- then delete the objecting FK record and the same PK delete succeeds: -DELETE FROM temporal_fk_rng2rng WHERE id = '[3,4)'; -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); --- --- test FK referenced deletes RESTRICT --- -TRUNCATE temporal_rng, temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON DELETE RESTRICT; -INSERT INTO temporal_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -DELETE FROM temporal_rng WHERE id = '[5,6)'; --- a PK delete that succeeds even though the numeric id is referenced because the range isn't: -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- a PK delete that fails because both are referenced (even before commit): -BEGIN; - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "temporal_rng" violates foreign key constraint "temporal_fk_rng2rng_fk" on table "temporal_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_fk_rng2rng". -ROLLBACK; --- then delete the objecting FK record and the same PK delete succeeds: -DELETE FROM temporal_fk_rng2rng WHERE id = '[3,4)'; -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); --- --- test ON UPDATE/DELETE options --- --- test FK referenced updates CASCADE -INSERT INTO temporal_rng (id, valid_at) VALUES ('[6,7)', daterange('2018-01-01', '2021-01-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[4,5)', daterange('2018-01-01', '2021-01-01'), '[6,7)'); -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk, - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON DELETE CASCADE ON UPDATE CASCADE; -ERROR: unsupported ON UPDATE action for foreign key constraint using PERIOD --- test FK referenced updates SET NULL -INSERT INTO temporal_rng (id, valid_at) VALUES ('[9,10)', daterange('2018-01-01', '2021-01-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[6,7)', daterange('2018-01-01', '2021-01-01'), '[9,10)'); -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk, - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON DELETE SET NULL ON UPDATE SET NULL; -ERROR: unsupported ON UPDATE action for foreign key constraint using PERIOD --- test FK referenced updates SET DEFAULT -INSERT INTO temporal_rng (id, valid_at) VALUES ('[-1,-1]', daterange(null, null)); -INSERT INTO temporal_rng (id, valid_at) VALUES ('[12,13)', daterange('2018-01-01', '2021-01-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[8,9)', daterange('2018-01-01', '2021-01-01'), '[12,13)'); -ALTER TABLE temporal_fk_rng2rng - ALTER COLUMN parent_id SET DEFAULT '[-1,-1]', - DROP CONSTRAINT temporal_fk_rng2rng_fk, - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON DELETE SET DEFAULT ON UPDATE SET DEFAULT; -ERROR: unsupported ON UPDATE action for foreign key constraint using PERIOD --- --- test FOREIGN KEY, multirange references multirange --- --- Can't create a FK with a mismatched multirange type -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at int4multirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk2 PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk2 FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) -); -ERROR: foreign key constraint "temporal_fk_mltrng2mltrng_fk2" cannot be implemented -DETAIL: Key columns "valid_at" and "valid_at" are of incompatible types: int4multirange and datemultirange. -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) -); -DROP TABLE temporal_fk_mltrng2mltrng; --- with mismatched PERIOD columns: --- (parent_id, PERIOD valid_at) REFERENCES (id, valid_at) --- REFERENCES part should specify PERIOD -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, valid_at) -); -ERROR: foreign key uses PERIOD on the referencing table but not the referenced table --- (parent_id, valid_at) REFERENCES (id, valid_at) --- both should specify PERIOD: -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_mltrng (id, valid_at) -); -ERROR: foreign key must use PERIOD when referencing a primary using WITHOUT OVERLAPS --- (parent_id, valid_at) REFERENCES (id, PERIOD valid_at) --- FOREIGN KEY part should specify PERIOD -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) -); -ERROR: foreign key uses PERIOD on the referenced table but not the referencing table --- (parent_id, valid_at) REFERENCES [implicit] --- FOREIGN KEY part should specify PERIOD -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_mltrng -); -ERROR: foreign key uses PERIOD on the referenced table but not the referencing table --- (parent_id, PERIOD valid_at) REFERENCES (id) -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id) -); -ERROR: foreign key uses PERIOD on the referencing table but not the referenced table --- (parent_id) REFERENCES (id, PERIOD valid_at) -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id) - REFERENCES temporal_mltrng (id, PERIOD valid_at) -); -ERROR: foreign key uses PERIOD on the referenced table but not the referencing table --- with inferred PK on the referenced table: --- (parent_id, PERIOD valid_at) REFERENCES [implicit] -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng -); -DROP TABLE temporal_fk_mltrng2mltrng; --- (parent_id) REFERENCES [implicit] -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id) - REFERENCES temporal_mltrng -); -ERROR: foreign key uses PERIOD on the referenced table but not the referencing table --- should fail because of duplicate referenced columns: -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD parent_id) - REFERENCES temporal_mltrng (id, PERIOD id) -); -ERROR: foreign key referenced-columns list must not contain duplicates --- Two scalar columns -CREATE TABLE temporal_fk2_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id1 int4range, - parent_id2 int4range, - CONSTRAINT temporal_fk2_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk2_mltrng2mltrng_fk FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) - REFERENCES temporal_mltrng2 (id1, id2, PERIOD valid_at) -); -\d temporal_fk2_mltrng2mltrng - Table "public.temporal_fk2_mltrng2mltrng" - Column | Type | Collation | Nullable | Default -------------+----------------+-----------+----------+--------- - id | int4range | | not null | - valid_at | datemultirange | | not null | - parent_id1 | int4range | | | - parent_id2 | int4range | | | -Indexes: - "temporal_fk2_mltrng2mltrng_pk" PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -Foreign-key constraints: - "temporal_fk2_mltrng2mltrng_fk" FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) REFERENCES temporal_mltrng2(id1, id2, PERIOD valid_at) - -DROP TABLE temporal_fk2_mltrng2mltrng; --- --- test ALTER TABLE ADD CONSTRAINT --- -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); --- Two scalar columns: -CREATE TABLE temporal_fk2_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id1 int4range, - parent_id2 int4range, - CONSTRAINT temporal_fk2_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -ALTER TABLE temporal_fk2_mltrng2mltrng - ADD CONSTRAINT temporal_fk2_mltrng2mltrng_fk - FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) - REFERENCES temporal_mltrng2 (id1, id2, PERIOD valid_at); -\d temporal_fk2_mltrng2mltrng - Table "public.temporal_fk2_mltrng2mltrng" - Column | Type | Collation | Nullable | Default -------------+----------------+-----------+----------+--------- - id | int4range | | not null | - valid_at | datemultirange | | not null | - parent_id1 | int4range | | | - parent_id2 | int4range | | | -Indexes: - "temporal_fk2_mltrng2mltrng_pk" PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -Foreign-key constraints: - "temporal_fk2_mltrng2mltrng_fk" FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) REFERENCES temporal_mltrng2(id1, id2, PERIOD valid_at) - --- should fail because of duplicate referenced columns: -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk2 - FOREIGN KEY (parent_id, PERIOD parent_id) - REFERENCES temporal_mltrng (id, PERIOD id); -ERROR: foreign key referenced-columns list must not contain duplicates --- --- test with rows already --- -DELETE FROM temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[1,2)', datemultirange(daterange('2018-01-02', '2018-02-01')), '[1,2)'); -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[2,3)', datemultirange(daterange('2018-01-02', '2018-04-01')), '[1,2)'); --- should fail: -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); -ERROR: insert or update on table "temporal_fk_mltrng2mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" -DETAIL: Key (parent_id, valid_at)=([1,2), {[2018-01-02,2018-04-01)}) is not present in table "temporal_mltrng". --- okay again: -DELETE FROM temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); --- --- test pg_get_constraintdef --- -SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conname = 'temporal_fk_mltrng2mltrng_fk'; - pg_get_constraintdef ------------------------------------------------------------------------------------------- - FOREIGN KEY (parent_id, PERIOD valid_at) REFERENCES temporal_mltrng(id, PERIOD valid_at) -(1 row) - --- --- test FK referencing inserts --- -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[1,2)', datemultirange(daterange('2018-01-02', '2018-02-01')), '[1,2)'); --- should fail: -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[2,3)', datemultirange(daterange('2018-01-02', '2018-04-01')), '[1,2)'); -ERROR: insert or update on table "temporal_fk_mltrng2mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" -DETAIL: Key (parent_id, valid_at)=([1,2), {[2018-01-02,2018-04-01)}) is not present in table "temporal_mltrng". --- now it should work: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[1,2)', datemultirange(daterange('2018-02-03', '2018-03-03'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[2,3)', datemultirange(daterange('2018-01-02', '2018-04-01')), '[1,2)'); --- --- test FK referencing updates --- -UPDATE temporal_fk_mltrng2mltrng SET valid_at = datemultirange(daterange('2018-01-02', '2018-03-01')) WHERE id = '[1,2)'; --- should fail: -UPDATE temporal_fk_mltrng2mltrng SET valid_at = datemultirange(daterange('2018-01-02', '2018-05-01')) WHERE id = '[1,2)'; -ERROR: insert or update on table "temporal_fk_mltrng2mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" -DETAIL: Key (parent_id, valid_at)=([1,2), {[2018-01-02,2018-05-01)}) is not present in table "temporal_mltrng". -UPDATE temporal_fk_mltrng2mltrng SET parent_id = '[8,9)' WHERE id = '[1,2)'; -ERROR: insert or update on table "temporal_fk_mltrng2mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" -DETAIL: Key (parent_id, valid_at)=([8,9), {[2018-01-02,2018-03-01)}) is not present in table "temporal_mltrng". --- ALTER FK DEFERRABLE -BEGIN; - INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); - INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES - ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - DELETE FROM temporal_mltrng WHERE id = '[5,6)'; --should not fail yet. -COMMIT; -- should fail here. -ERROR: update or delete on table "temporal_mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" on table "temporal_fk_mltrng2mltrng" -DETAIL: Key (id, valid_at)=([5,6), {[2018-01-01,2018-02-01)}) is still referenced from table "temporal_fk_mltrng2mltrng". --- --- test FK referenced updates NO ACTION --- -TRUNCATE temporal_mltrng, temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) - ON UPDATE NO ACTION; --- a PK update that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))); -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) WHERE id = '[5,6)'; --- a PK update that succeeds even though the numeric id is referenced because the range isn't: -DELETE FROM temporal_mltrng WHERE id = '[5,6)'; -INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-02-01', '2016-03-01')) -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-02-01', '2018-03-01')); --- a PK update that fails because both are referenced: -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -ERROR: update or delete on table "temporal_mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" on table "temporal_fk_mltrng2mltrng" -DETAIL: Key (id, valid_at)=([5,6), {[2018-01-01,2018-02-01)}) is still referenced from table "temporal_fk_mltrng2mltrng". --- a PK update that fails because both are referenced, but not 'til commit: -BEGIN; - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) - WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -COMMIT; -ERROR: update or delete on table "temporal_mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" on table "temporal_fk_mltrng2mltrng" -DETAIL: Key (id, valid_at)=([5,6), {[2018-01-01,2018-02-01)}) is still referenced from table "temporal_fk_mltrng2mltrng". --- changing the scalar part fails: -UPDATE temporal_mltrng SET id = '[7,8)' -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -ERROR: update or delete on table "temporal_mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" on table "temporal_fk_mltrng2mltrng" -DETAIL: Key (id, valid_at)=([5,6), {[2018-01-01,2018-02-01)}) is still referenced from table "temporal_fk_mltrng2mltrng". --- --- test FK referenced updates RESTRICT --- -TRUNCATE temporal_mltrng, temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) - ON UPDATE RESTRICT; --- a PK update that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))); -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) WHERE id = '[5,6)'; --- a PK update that succeeds even though the numeric id is referenced because the range isn't: -DELETE FROM temporal_mltrng WHERE id = '[5,6)'; -INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-02-01', '2016-03-01')) -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-02-01', '2018-03-01')); --- a PK update that fails because both are referenced (even before commit): -BEGIN; - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) - WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -ERROR: update or delete on table "temporal_mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" on table "temporal_fk_mltrng2mltrng" -DETAIL: Key (id, valid_at)=([5,6), {[2018-01-01,2018-02-01)}) is still referenced from table "temporal_fk_mltrng2mltrng". -ROLLBACK; --- changing the scalar part fails: -UPDATE temporal_mltrng SET id = '[7,8)' -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -ERROR: update or delete on table "temporal_mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" on table "temporal_fk_mltrng2mltrng" -DETAIL: Key (id, valid_at)=([5,6), {[2018-01-01,2018-02-01)}) is still referenced from table "temporal_fk_mltrng2mltrng". --- --- test FK referenced deletes NO ACTION --- -TRUNCATE temporal_mltrng, temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); --- a PK delete that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))); -DELETE FROM temporal_mltrng WHERE id = '[5,6)'; --- a PK delete that succeeds even though the numeric id is referenced because the range isn't: -INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); -DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-02-01', '2018-03-01')); --- a PK delete that fails because both are referenced: -DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -ERROR: update or delete on table "temporal_mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" on table "temporal_fk_mltrng2mltrng" -DETAIL: Key (id, valid_at)=([5,6), {[2018-01-01,2018-02-01)}) is still referenced from table "temporal_fk_mltrng2mltrng". --- a PK delete that fails because both are referenced, but not 'til commit: -BEGIN; - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -COMMIT; -ERROR: update or delete on table "temporal_mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" on table "temporal_fk_mltrng2mltrng" -DETAIL: Key (id, valid_at)=([5,6), {[2018-01-01,2018-02-01)}) is still referenced from table "temporal_fk_mltrng2mltrng". --- --- test FK referenced deletes RESTRICT --- -TRUNCATE temporal_mltrng, temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) - ON DELETE RESTRICT; -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))); -DELETE FROM temporal_mltrng WHERE id = '[5,6)'; --- a PK delete that succeeds even though the numeric id is referenced because the range isn't: -INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); -DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-02-01', '2018-03-01')); --- a PK delete that fails because both are referenced (even before commit): -BEGIN; - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -ERROR: update or delete on table "temporal_mltrng" violates foreign key constraint "temporal_fk_mltrng2mltrng_fk" on table "temporal_fk_mltrng2mltrng" -DETAIL: Key (id, valid_at)=([5,6), {[2018-01-01,2018-02-01)}) is still referenced from table "temporal_fk_mltrng2mltrng". -ROLLBACK; --- --- test FOREIGN KEY, box references box --- (not allowed: PERIOD part must be a range or multirange) --- -CREATE TABLE temporal_box ( - id int4range, - valid_at box, - CONSTRAINT temporal_box_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -\d temporal_box - Table "public.temporal_box" - Column | Type | Collation | Nullable | Default -----------+-----------+-----------+----------+--------- - id | int4range | | not null | - valid_at | box | | not null | -Indexes: - "temporal_box_pk" PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) - -CREATE TABLE temporal_fk_box2box ( - id int4range, - valid_at box, - parent_id int4range, - CONSTRAINT temporal_fk_box2box_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_box2box_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_box (id, PERIOD valid_at) -); -ERROR: invalid type for PERIOD part of foreign key -DETAIL: Only range and multirange are supported. --- --- FK between partitioned tables --- -CREATE TABLE temporal_partitioned_rng ( - id int4range, - valid_at daterange, - name text, - CONSTRAINT temporal_paritioned_rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -) PARTITION BY LIST (id); -CREATE TABLE tp1 partition OF temporal_partitioned_rng FOR VALUES IN ('[1,2)', '[3,4)', '[5,6)', '[7,8)', '[9,10)', '[11,12)'); -CREATE TABLE tp2 partition OF temporal_partitioned_rng FOR VALUES IN ('[2,3)', '[4,5)', '[6,7)', '[8,9)', '[10,11)', '[12,13)'); -INSERT INTO temporal_partitioned_rng (id, valid_at, name) VALUES - ('[1,2)', daterange('2000-01-01', '2000-02-01'), 'one'), - ('[1,2)', daterange('2000-02-01', '2000-03-01'), 'one'), - ('[2,3)', daterange('2000-01-01', '2010-01-01'), 'two'); -CREATE TABLE temporal_partitioned_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_partitioned_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_partitioned_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng (id, PERIOD valid_at) -) PARTITION BY LIST (id); -CREATE TABLE tfkp1 partition OF temporal_partitioned_fk_rng2rng FOR VALUES IN ('[1,2)', '[3,4)', '[5,6)', '[7,8)', '[9,10)', '[11,12)'); -CREATE TABLE tfkp2 partition OF temporal_partitioned_fk_rng2rng FOR VALUES IN ('[2,3)', '[4,5)', '[6,7)', '[8,9)', '[10,11)', '[12,13)'); --- --- partitioned FK referencing inserts --- -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES - ('[1,2)', daterange('2000-01-01', '2000-02-15'), '[1,2)'), - ('[1,2)', daterange('2001-01-01', '2002-01-01'), '[2,3)'), - ('[2,3)', daterange('2000-01-01', '2000-02-15'), '[1,2)'); --- should fail: -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES - ('[3,4)', daterange('2010-01-01', '2010-02-15'), '[1,2)'); -ERROR: insert or update on table "tfkp1" violates foreign key constraint "temporal_partitioned_fk_rng2rng_fk" -DETAIL: Key (parent_id, valid_at)=([1,2), [2010-01-01,2010-02-15)) is not present in table "temporal_partitioned_rng". -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES - ('[3,4)', daterange('2000-01-01', '2000-02-15'), '[3,4)'); -ERROR: insert or update on table "tfkp1" violates foreign key constraint "temporal_partitioned_fk_rng2rng_fk" -DETAIL: Key (parent_id, valid_at)=([3,4), [2000-01-01,2000-02-15)) is not present in table "temporal_partitioned_rng". --- --- partitioned FK referencing updates --- -UPDATE temporal_partitioned_fk_rng2rng SET valid_at = daterange('2000-01-01', '2000-02-13') WHERE id = '[2,3)'; --- move a row from the first partition to the second -UPDATE temporal_partitioned_fk_rng2rng SET id = '[4,5)' WHERE id = '[1,2)'; --- move a row from the second partition to the first -UPDATE temporal_partitioned_fk_rng2rng SET id = '[1,2)' WHERE id = '[4,5)'; --- should fail: -UPDATE temporal_partitioned_fk_rng2rng SET valid_at = daterange('2000-01-01', '2000-04-01') WHERE id = '[1,2)'; -ERROR: conflicting key value violates exclusion constraint "tfkp1_pkey" -DETAIL: Key (id, valid_at)=([1,2), [2000-01-01,2000-04-01)) conflicts with existing key (id, valid_at)=([1,2), [2000-01-01,2000-04-01)). --- --- partitioned FK referenced updates NO ACTION --- -TRUNCATE temporal_partitioned_rng, temporal_partitioned_fk_rng2rng; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2016-01-01', '2016-02-01')); -UPDATE temporal_partitioned_rng SET valid_at = daterange('2018-01-01', '2018-02-01') WHERE id = '[5,6)'; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -UPDATE temporal_partitioned_rng SET valid_at = daterange('2016-02-01', '2016-03-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- should fail: -UPDATE temporal_partitioned_rng SET valid_at = daterange('2016-01-01', '2016-02-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "tp1" violates foreign key constraint "temporal_partitioned_fk_rng2rng_parent_id_valid_at_fkey" on table "temporal_partitioned_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_partitioned_fk_rng2rng". --- --- partitioned FK referenced deletes NO ACTION --- -TRUNCATE temporal_partitioned_rng, temporal_partitioned_fk_rng2rng; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -DELETE FROM temporal_partitioned_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- should fail: -DELETE FROM temporal_partitioned_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "tp1" violates foreign key constraint "temporal_partitioned_fk_rng2rng_parent_id_valid_at_fkey" on table "temporal_partitioned_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_partitioned_fk_rng2rng". --- --- partitioned FK referenced updates RESTRICT --- -TRUNCATE temporal_partitioned_rng, temporal_partitioned_fk_rng2rng; -ALTER TABLE temporal_partitioned_fk_rng2rng - DROP CONSTRAINT temporal_partitioned_fk_rng2rng_fk; -ALTER TABLE temporal_partitioned_fk_rng2rng - ADD CONSTRAINT temporal_partitioned_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng - ON DELETE RESTRICT; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2016-01-01', '2016-02-01')); -UPDATE temporal_partitioned_rng SET valid_at = daterange('2018-01-01', '2018-02-01') WHERE id = '[5,6)'; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -UPDATE temporal_partitioned_rng SET valid_at = daterange('2016-02-01', '2016-03-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- should fail: -UPDATE temporal_partitioned_rng SET valid_at = daterange('2016-01-01', '2016-02-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "tp1" violates foreign key constraint "temporal_partitioned_fk_rng2rng_parent_id_valid_at_fkey" on table "temporal_partitioned_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_partitioned_fk_rng2rng". --- --- partitioned FK referenced deletes RESTRICT --- -TRUNCATE temporal_partitioned_rng, temporal_partitioned_fk_rng2rng; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -DELETE FROM temporal_partitioned_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- should fail: -DELETE FROM temporal_partitioned_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ERROR: update or delete on table "tp1" violates foreign key constraint "temporal_partitioned_fk_rng2rng_parent_id_valid_at_fkey" on table "temporal_partitioned_fk_rng2rng" -DETAIL: Key (id, valid_at)=([5,6), [2018-01-01,2018-02-01)) is still referenced from table "temporal_partitioned_fk_rng2rng". --- --- partitioned FK referenced updates CASCADE --- -ALTER TABLE temporal_partitioned_fk_rng2rng - DROP CONSTRAINT temporal_partitioned_fk_rng2rng_fk, - ADD CONSTRAINT temporal_partitioned_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng - ON DELETE CASCADE ON UPDATE CASCADE; -ERROR: unsupported ON UPDATE action for foreign key constraint using PERIOD --- --- partitioned FK referenced deletes CASCADE --- --- --- partitioned FK referenced updates SET NULL --- -ALTER TABLE temporal_partitioned_fk_rng2rng - DROP CONSTRAINT temporal_partitioned_fk_rng2rng_fk, - ADD CONSTRAINT temporal_partitioned_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng - ON DELETE SET NULL ON UPDATE SET NULL; -ERROR: unsupported ON UPDATE action for foreign key constraint using PERIOD --- --- partitioned FK referenced deletes SET NULL --- --- --- partitioned FK referenced updates SET DEFAULT --- -ALTER TABLE temporal_partitioned_fk_rng2rng - ALTER COLUMN parent_id SET DEFAULT '[-1,-1]', - DROP CONSTRAINT temporal_partitioned_fk_rng2rng_fk, - ADD CONSTRAINT temporal_partitioned_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng - ON DELETE SET DEFAULT ON UPDATE SET DEFAULT; -ERROR: unsupported ON UPDATE action for foreign key constraint using PERIOD --- --- partitioned FK referenced deletes SET DEFAULT --- -DROP TABLE temporal_partitioned_fk_rng2rng; -DROP TABLE temporal_partitioned_rng; RESET datestyle; diff --git a/src/test/regress/sql/without_overlaps.sql b/src/test/regress/sql/without_overlaps.sql index da2b7f19a85..b5e77168f54 100644 --- a/src/test/regress/sql/without_overlaps.sql +++ b/src/test/regress/sql/without_overlaps.sql @@ -58,6 +58,7 @@ CREATE TABLE temporal_rng2 ( SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conname = 'temporal_rng2_pk'; SELECT pg_get_indexdef(conindid, 0, true) FROM pg_constraint WHERE conname = 'temporal_rng2_pk'; + -- PK with a custom range type: CREATE TYPE textrange2 AS range (subtype=text, collation="C"); CREATE TABLE temporal_rng3 ( @@ -69,26 +70,14 @@ CREATE TABLE temporal_rng3 ( DROP TABLE temporal_rng3; DROP TYPE textrange2; --- PK with one column plus a multirange: +-- PK with a multirange: CREATE TABLE temporal_mltrng ( id int4range, - valid_at datemultirange, + valid_at tsmultirange, CONSTRAINT temporal_mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) ); \d temporal_mltrng --- PK with two columns plus a multirange: --- We don't drop this table because tests below also need multiple scalar columns. -CREATE TABLE temporal_mltrng2 ( - id1 int4range, - id2 int4range, - valid_at datemultirange, - CONSTRAINT temporal_mltrng2_pk PRIMARY KEY (id1, id2, valid_at WITHOUT OVERLAPS) -); -\d temporal_mltrng2 -SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conname = 'temporal_mltrng2_pk'; -SELECT pg_get_indexdef(conindid, 0, true) FROM pg_constraint WHERE conname = 'temporal_mltrng2_pk'; - -- UNIQUE with no columns just WITHOUT OVERLAPS: CREATE TABLE temporal_rng3 ( @@ -227,19 +216,6 @@ CREATE TABLE temporal3 ( INSERT INTO temporal_rng (id, valid_at) VALUES (NULL, daterange('2018-01-01', '2018-01-05')); INSERT INTO temporal_rng (id, valid_at) VALUES ('[3,4)', NULL); --- okay: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[1,2)', datemultirange(daterange('2018-01-02', '2018-02-03'))); -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[1,2)', datemultirange(daterange('2018-03-03', '2018-04-04'))); -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[2,3)', datemultirange(daterange('2018-01-01', '2018-01-05'))); -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[3,4)', datemultirange(daterange('2018-01-01', NULL))); - --- should fail: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[1,2)', datemultirange(daterange('2018-01-01', '2018-01-05'))); -INSERT INTO temporal_mltrng (id, valid_at) VALUES (NULL, datemultirange(daterange('2018-01-01', '2018-01-05'))); -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[3,4)', NULL); - -SELECT * FROM temporal_mltrng ORDER BY id, valid_at; - -- -- test a range with both a PK and a UNIQUE constraint -- @@ -315,1030 +291,4 @@ CREATE TABLE tp2 PARTITION OF temporal_partitioned FOR VALUES IN ('[3,4)', '[4,5 SELECT * FROM tp2 ORDER BY id, valid_at; DROP TABLE temporal_partitioned; --- --- test FK dependencies --- - --- can't drop a range referenced by an FK, unless with CASCADE -CREATE TABLE temporal3 ( - id int4range, - valid_at daterange, - CONSTRAINT temporal3_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal3 (id, PERIOD valid_at) -); -ALTER TABLE temporal3 DROP COLUMN valid_at; -ALTER TABLE temporal3 DROP COLUMN valid_at CASCADE; -DROP TABLE temporal_fk_rng2rng; -DROP TABLE temporal3; - --- --- test FOREIGN KEY, range references range --- - --- test table setup -DROP TABLE temporal_rng; -CREATE TABLE temporal_rng (id int4range, valid_at daterange); -ALTER TABLE temporal_rng - ADD CONSTRAINT temporal_rng_pk - PRIMARY KEY (id, valid_at WITHOUT OVERLAPS); - --- Can't create a FK with a mismatched range type -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at int4range, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk2 PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk2 FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at) -); - --- works: PERIOD for both referenced and referencing -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at) -); -DROP TABLE temporal_fk_rng2rng; - --- with mismatched PERIOD columns: - --- (parent_id, PERIOD valid_at) REFERENCES (id, valid_at) --- REFERENCES part should specify PERIOD -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, valid_at) -); --- (parent_id, valid_at) REFERENCES (id, valid_at) --- both should specify PERIOD: -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_rng (id, valid_at) -); --- (parent_id, valid_at) REFERENCES (id, PERIOD valid_at) --- FOREIGN KEY part should specify PERIOD -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at) -); --- (parent_id, valid_at) REFERENCES [implicit] --- FOREIGN KEY part should specify PERIOD -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_rng -); --- (parent_id, PERIOD valid_at) REFERENCES (id) -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id) -); --- (parent_id) REFERENCES (id, PERIOD valid_at) -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id) - REFERENCES temporal_rng (id, PERIOD valid_at) -); --- with inferred PK on the referenced table: --- (parent_id, PERIOD valid_at) REFERENCES [implicit] -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng -); -DROP TABLE temporal_fk_rng2rng; --- (parent_id) REFERENCES [implicit] -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id) - REFERENCES temporal_rng -); - --- should fail because of duplicate referenced columns: -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD parent_id) - REFERENCES temporal_rng (id, PERIOD id) -); - --- Two scalar columns -DROP TABLE temporal_rng2; -CREATE TABLE temporal_rng2 ( - id1 int4range, - id2 int4range, - valid_at daterange, - CONSTRAINT temporal_rng2_pk PRIMARY KEY (id1, id2, valid_at WITHOUT OVERLAPS) -); - -CREATE TABLE temporal_fk2_rng2rng ( - id int4range, - valid_at daterange, - parent_id1 int4range, - parent_id2 int4range, - CONSTRAINT temporal_fk2_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk2_rng2rng_fk FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) - REFERENCES temporal_rng2 (id1, id2, PERIOD valid_at) -); -\d temporal_fk2_rng2rng -DROP TABLE temporal_fk2_rng2rng; - --- --- test ALTER TABLE ADD CONSTRAINT --- - -CREATE TABLE temporal_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng (id, PERIOD valid_at); --- Two scalar columns: -CREATE TABLE temporal_fk2_rng2rng ( - id int4range, - valid_at daterange, - parent_id1 int4range, - parent_id2 int4range, - CONSTRAINT temporal_fk2_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -ALTER TABLE temporal_fk2_rng2rng - ADD CONSTRAINT temporal_fk2_rng2rng_fk - FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) - REFERENCES temporal_rng2 (id1, id2, PERIOD valid_at); -\d temporal_fk2_rng2rng - --- with inferred PK on the referenced table, and wrong column type: -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk, - ALTER COLUMN valid_at TYPE tsrange USING tsrange(lower(valid_at), upper(valid_at)); -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; -ALTER TABLE temporal_fk_rng2rng - ALTER COLUMN valid_at TYPE daterange USING daterange(lower(valid_at)::date, upper(valid_at)::date); - --- with inferred PK on the referenced table: -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; - --- should fail because of duplicate referenced columns: -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk2 - FOREIGN KEY (parent_id, PERIOD parent_id) - REFERENCES temporal_rng (id, PERIOD id); - --- --- test with rows already --- - -DELETE FROM temporal_fk_rng2rng; -DELETE FROM temporal_rng; -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[1,2)', daterange('2018-01-02', '2018-02-03')), - ('[1,2)', daterange('2018-03-03', '2018-04-04')), - ('[2,3)', daterange('2018-01-01', '2018-01-05')), - ('[3,4)', daterange('2018-01-01', NULL)); - -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[1,2)', daterange('2018-01-02', '2018-02-01'), '[1,2)'); -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[2,3)', daterange('2018-01-02', '2018-04-01'), '[1,2)'); --- should fail: -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; --- okay again: -DELETE FROM temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; - --- --- test pg_get_constraintdef --- - -SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conname = 'temporal_fk_rng2rng_fk'; - --- --- test FK referencing inserts --- - -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[1,2)', daterange('2018-01-02', '2018-02-01'), '[1,2)'); --- should fail: -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[2,3)', daterange('2018-01-02', '2018-04-01'), '[1,2)'); --- now it should work: -INSERT INTO temporal_rng (id, valid_at) VALUES ('[1,2)', daterange('2018-02-03', '2018-03-03')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[2,3)', daterange('2018-01-02', '2018-04-01'), '[1,2)'); - --- --- test FK referencing updates --- - -UPDATE temporal_fk_rng2rng SET valid_at = daterange('2018-01-02', '2018-03-01') WHERE id = '[1,2)'; --- should fail: -UPDATE temporal_fk_rng2rng SET valid_at = daterange('2018-01-02', '2018-05-01') WHERE id = '[1,2)'; -UPDATE temporal_fk_rng2rng SET parent_id = '[8,9)' WHERE id = '[1,2)'; - --- ALTER FK DEFERRABLE - -BEGIN; - INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); - INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES - ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - - DELETE FROM temporal_rng WHERE id = '[5,6)'; --should not fail yet. -COMMIT; -- should fail here. - --- --- test FK referenced updates NO ACTION --- - -TRUNCATE temporal_rng, temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON UPDATE NO ACTION; --- a PK update that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') WHERE id = '[5,6)'; --- a PK update that succeeds even though the numeric id is referenced because the range isn't: -DELETE FROM temporal_rng WHERE id = '[5,6)'; -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -UPDATE temporal_rng SET valid_at = daterange('2016-02-01', '2016-03-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- a PK update that fails because both are referenced: -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); --- a PK update that fails because both are referenced, but not 'til commit: -BEGIN; - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - - UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -COMMIT; --- changing the scalar part fails: -UPDATE temporal_rng SET id = '[7,8)' -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); --- then delete the objecting FK record and the same PK update succeeds: -DELETE FROM temporal_fk_rng2rng WHERE id = '[3,4)'; -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); - --- --- test FK referenced updates RESTRICT --- - -TRUNCATE temporal_rng, temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON UPDATE RESTRICT; --- a PK update that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') WHERE id = '[5,6)'; --- a PK update that succeeds even though the numeric id is referenced because the range isn't: -DELETE FROM temporal_rng WHERE id = '[5,6)'; -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -UPDATE temporal_rng SET valid_at = daterange('2016-02-01', '2016-03-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- a PK update that fails because both are referenced (even before commit): -BEGIN; - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ROLLBACK; --- changing the scalar part fails: -UPDATE temporal_rng SET id = '[7,8)' -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); --- then delete the objecting FK record and the same PK update succeeds: -DELETE FROM temporal_fk_rng2rng WHERE id = '[3,4)'; -UPDATE temporal_rng SET valid_at = daterange('2016-01-01', '2016-02-01') -WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); - --- --- test FK referenced deletes NO ACTION --- - -TRUNCATE temporal_rng, temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng; --- a PK delete that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -DELETE FROM temporal_rng WHERE id = '[5,6)'; --- a PK delete that succeeds even though the numeric id is referenced because the range isn't: -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- a PK delete that fails because both are referenced: -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); --- a PK delete that fails because both are referenced, but not 'til commit: -BEGIN; - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - - DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -COMMIT; --- then delete the objecting FK record and the same PK delete succeeds: -DELETE FROM temporal_fk_rng2rng WHERE id = '[3,4)'; -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); - --- --- test FK referenced deletes RESTRICT --- - -TRUNCATE temporal_rng, temporal_fk_rng2rng; -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk; -ALTER TABLE temporal_fk_rng2rng - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON DELETE RESTRICT; -INSERT INTO temporal_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -DELETE FROM temporal_rng WHERE id = '[5,6)'; --- a PK delete that succeeds even though the numeric id is referenced because the range isn't: -INSERT INTO temporal_rng (id, valid_at) VALUES - ('[5,6)', daterange('2018-01-01', '2018-02-01')), - ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- a PK delete that fails because both are referenced (even before commit): -BEGIN; - ALTER TABLE temporal_fk_rng2rng - ALTER CONSTRAINT temporal_fk_rng2rng_fk - DEFERRABLE INITIALLY DEFERRED; - DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); -ROLLBACK; --- then delete the objecting FK record and the same PK delete succeeds: -DELETE FROM temporal_fk_rng2rng WHERE id = '[3,4)'; -DELETE FROM temporal_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); - --- --- test ON UPDATE/DELETE options --- - --- test FK referenced updates CASCADE -INSERT INTO temporal_rng (id, valid_at) VALUES ('[6,7)', daterange('2018-01-01', '2021-01-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[4,5)', daterange('2018-01-01', '2021-01-01'), '[6,7)'); -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk, - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON DELETE CASCADE ON UPDATE CASCADE; - --- test FK referenced updates SET NULL -INSERT INTO temporal_rng (id, valid_at) VALUES ('[9,10)', daterange('2018-01-01', '2021-01-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[6,7)', daterange('2018-01-01', '2021-01-01'), '[9,10)'); -ALTER TABLE temporal_fk_rng2rng - DROP CONSTRAINT temporal_fk_rng2rng_fk, - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON DELETE SET NULL ON UPDATE SET NULL; - --- test FK referenced updates SET DEFAULT -INSERT INTO temporal_rng (id, valid_at) VALUES ('[-1,-1]', daterange(null, null)); -INSERT INTO temporal_rng (id, valid_at) VALUES ('[12,13)', daterange('2018-01-01', '2021-01-01')); -INSERT INTO temporal_fk_rng2rng (id, valid_at, parent_id) VALUES ('[8,9)', daterange('2018-01-01', '2021-01-01'), '[12,13)'); -ALTER TABLE temporal_fk_rng2rng - ALTER COLUMN parent_id SET DEFAULT '[-1,-1]', - DROP CONSTRAINT temporal_fk_rng2rng_fk, - ADD CONSTRAINT temporal_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_rng - ON DELETE SET DEFAULT ON UPDATE SET DEFAULT; - --- --- test FOREIGN KEY, multirange references multirange --- - --- Can't create a FK with a mismatched multirange type -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at int4multirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk2 PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk2 FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) -); - -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) -); -DROP TABLE temporal_fk_mltrng2mltrng; - --- with mismatched PERIOD columns: - --- (parent_id, PERIOD valid_at) REFERENCES (id, valid_at) --- REFERENCES part should specify PERIOD -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, valid_at) -); --- (parent_id, valid_at) REFERENCES (id, valid_at) --- both should specify PERIOD: -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_mltrng (id, valid_at) -); --- (parent_id, valid_at) REFERENCES (id, PERIOD valid_at) --- FOREIGN KEY part should specify PERIOD -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) -); --- (parent_id, valid_at) REFERENCES [implicit] --- FOREIGN KEY part should specify PERIOD -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, valid_at) - REFERENCES temporal_mltrng -); --- (parent_id, PERIOD valid_at) REFERENCES (id) -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id) -); --- (parent_id) REFERENCES (id, PERIOD valid_at) -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id) - REFERENCES temporal_mltrng (id, PERIOD valid_at) -); --- with inferred PK on the referenced table: --- (parent_id, PERIOD valid_at) REFERENCES [implicit] -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng -); -DROP TABLE temporal_fk_mltrng2mltrng; --- (parent_id) REFERENCES [implicit] -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id) - REFERENCES temporal_mltrng -); - --- should fail because of duplicate referenced columns: -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_mltrng2mltrng_fk FOREIGN KEY (parent_id, PERIOD parent_id) - REFERENCES temporal_mltrng (id, PERIOD id) -); - --- Two scalar columns -CREATE TABLE temporal_fk2_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id1 int4range, - parent_id2 int4range, - CONSTRAINT temporal_fk2_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk2_mltrng2mltrng_fk FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) - REFERENCES temporal_mltrng2 (id1, id2, PERIOD valid_at) -); -\d temporal_fk2_mltrng2mltrng -DROP TABLE temporal_fk2_mltrng2mltrng; - --- --- test ALTER TABLE ADD CONSTRAINT --- - -CREATE TABLE temporal_fk_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id int4range, - CONSTRAINT temporal_fk_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); --- Two scalar columns: -CREATE TABLE temporal_fk2_mltrng2mltrng ( - id int4range, - valid_at datemultirange, - parent_id1 int4range, - parent_id2 int4range, - CONSTRAINT temporal_fk2_mltrng2mltrng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -ALTER TABLE temporal_fk2_mltrng2mltrng - ADD CONSTRAINT temporal_fk2_mltrng2mltrng_fk - FOREIGN KEY (parent_id1, parent_id2, PERIOD valid_at) - REFERENCES temporal_mltrng2 (id1, id2, PERIOD valid_at); -\d temporal_fk2_mltrng2mltrng - --- should fail because of duplicate referenced columns: -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk2 - FOREIGN KEY (parent_id, PERIOD parent_id) - REFERENCES temporal_mltrng (id, PERIOD id); - --- --- test with rows already --- - -DELETE FROM temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[1,2)', datemultirange(daterange('2018-01-02', '2018-02-01')), '[1,2)'); -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[2,3)', datemultirange(daterange('2018-01-02', '2018-04-01')), '[1,2)'); --- should fail: -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); --- okay again: -DELETE FROM temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); - --- --- test pg_get_constraintdef --- - -SELECT pg_get_constraintdef(oid) FROM pg_constraint WHERE conname = 'temporal_fk_mltrng2mltrng_fk'; - --- --- test FK referencing inserts --- - -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[1,2)', datemultirange(daterange('2018-01-02', '2018-02-01')), '[1,2)'); --- should fail: -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[2,3)', datemultirange(daterange('2018-01-02', '2018-04-01')), '[1,2)'); --- now it should work: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[1,2)', datemultirange(daterange('2018-02-03', '2018-03-03'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[2,3)', datemultirange(daterange('2018-01-02', '2018-04-01')), '[1,2)'); - --- --- test FK referencing updates --- - -UPDATE temporal_fk_mltrng2mltrng SET valid_at = datemultirange(daterange('2018-01-02', '2018-03-01')) WHERE id = '[1,2)'; --- should fail: -UPDATE temporal_fk_mltrng2mltrng SET valid_at = datemultirange(daterange('2018-01-02', '2018-05-01')) WHERE id = '[1,2)'; -UPDATE temporal_fk_mltrng2mltrng SET parent_id = '[8,9)' WHERE id = '[1,2)'; - --- ALTER FK DEFERRABLE - -BEGIN; - INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); - INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES - ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - - DELETE FROM temporal_mltrng WHERE id = '[5,6)'; --should not fail yet. -COMMIT; -- should fail here. - --- --- test FK referenced updates NO ACTION --- - -TRUNCATE temporal_mltrng, temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) - ON UPDATE NO ACTION; --- a PK update that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))); -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) WHERE id = '[5,6)'; --- a PK update that succeeds even though the numeric id is referenced because the range isn't: -DELETE FROM temporal_mltrng WHERE id = '[5,6)'; -INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-02-01', '2016-03-01')) -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-02-01', '2018-03-01')); --- a PK update that fails because both are referenced: -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); --- a PK update that fails because both are referenced, but not 'til commit: -BEGIN; - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - - UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) - WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -COMMIT; --- changing the scalar part fails: -UPDATE temporal_mltrng SET id = '[7,8)' -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); - --- --- test FK referenced updates RESTRICT --- - -TRUNCATE temporal_mltrng, temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) - ON UPDATE RESTRICT; --- a PK update that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))); -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) WHERE id = '[5,6)'; --- a PK update that succeeds even though the numeric id is referenced because the range isn't: -DELETE FROM temporal_mltrng WHERE id = '[5,6)'; -INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); -UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-02-01', '2016-03-01')) -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-02-01', '2018-03-01')); --- a PK update that fails because both are referenced (even before commit): -BEGIN; - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - - UPDATE temporal_mltrng SET valid_at = datemultirange(daterange('2016-01-01', '2016-02-01')) - WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -ROLLBACK; --- changing the scalar part fails: -UPDATE temporal_mltrng SET id = '[7,8)' -WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); - --- --- test FK referenced deletes NO ACTION --- - -TRUNCATE temporal_mltrng, temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at); --- a PK delete that succeeds because the numeric id isn't referenced: -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))); -DELETE FROM temporal_mltrng WHERE id = '[5,6)'; --- a PK delete that succeeds even though the numeric id is referenced because the range isn't: -INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); -DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-02-01', '2018-03-01')); --- a PK delete that fails because both are referenced: -DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); --- a PK delete that fails because both are referenced, but not 'til commit: -BEGIN; - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - - DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -COMMIT; - --- --- test FK referenced deletes RESTRICT --- - -TRUNCATE temporal_mltrng, temporal_fk_mltrng2mltrng; -ALTER TABLE temporal_fk_mltrng2mltrng - DROP CONSTRAINT temporal_fk_mltrng2mltrng_fk; -ALTER TABLE temporal_fk_mltrng2mltrng - ADD CONSTRAINT temporal_fk_mltrng2mltrng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_mltrng (id, PERIOD valid_at) - ON DELETE RESTRICT; -INSERT INTO temporal_mltrng (id, valid_at) VALUES ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))); -DELETE FROM temporal_mltrng WHERE id = '[5,6)'; --- a PK delete that succeeds even though the numeric id is referenced because the range isn't: -INSERT INTO temporal_mltrng (id, valid_at) VALUES - ('[5,6)', datemultirange(daterange('2018-01-01', '2018-02-01'))), - ('[5,6)', datemultirange(daterange('2018-02-01', '2018-03-01'))); -INSERT INTO temporal_fk_mltrng2mltrng (id, valid_at, parent_id) VALUES ('[3,4)', datemultirange(daterange('2018-01-05', '2018-01-10')), '[5,6)'); -DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-02-01', '2018-03-01')); --- a PK delete that fails because both are referenced (even before commit): -BEGIN; - ALTER TABLE temporal_fk_mltrng2mltrng - ALTER CONSTRAINT temporal_fk_mltrng2mltrng_fk - DEFERRABLE INITIALLY DEFERRED; - - DELETE FROM temporal_mltrng WHERE id = '[5,6)' AND valid_at = datemultirange(daterange('2018-01-01', '2018-02-01')); -ROLLBACK; - --- --- test FOREIGN KEY, box references box --- (not allowed: PERIOD part must be a range or multirange) --- - -CREATE TABLE temporal_box ( - id int4range, - valid_at box, - CONSTRAINT temporal_box_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -); -\d temporal_box - -CREATE TABLE temporal_fk_box2box ( - id int4range, - valid_at box, - parent_id int4range, - CONSTRAINT temporal_fk_box2box_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_fk_box2box_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_box (id, PERIOD valid_at) -); - --- --- FK between partitioned tables --- - -CREATE TABLE temporal_partitioned_rng ( - id int4range, - valid_at daterange, - name text, - CONSTRAINT temporal_paritioned_rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS) -) PARTITION BY LIST (id); -CREATE TABLE tp1 partition OF temporal_partitioned_rng FOR VALUES IN ('[1,2)', '[3,4)', '[5,6)', '[7,8)', '[9,10)', '[11,12)'); -CREATE TABLE tp2 partition OF temporal_partitioned_rng FOR VALUES IN ('[2,3)', '[4,5)', '[6,7)', '[8,9)', '[10,11)', '[12,13)'); -INSERT INTO temporal_partitioned_rng (id, valid_at, name) VALUES - ('[1,2)', daterange('2000-01-01', '2000-02-01'), 'one'), - ('[1,2)', daterange('2000-02-01', '2000-03-01'), 'one'), - ('[2,3)', daterange('2000-01-01', '2010-01-01'), 'two'); - -CREATE TABLE temporal_partitioned_fk_rng2rng ( - id int4range, - valid_at daterange, - parent_id int4range, - CONSTRAINT temporal_partitioned_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS), - CONSTRAINT temporal_partitioned_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng (id, PERIOD valid_at) -) PARTITION BY LIST (id); -CREATE TABLE tfkp1 partition OF temporal_partitioned_fk_rng2rng FOR VALUES IN ('[1,2)', '[3,4)', '[5,6)', '[7,8)', '[9,10)', '[11,12)'); -CREATE TABLE tfkp2 partition OF temporal_partitioned_fk_rng2rng FOR VALUES IN ('[2,3)', '[4,5)', '[6,7)', '[8,9)', '[10,11)', '[12,13)'); - --- --- partitioned FK referencing inserts --- - -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES - ('[1,2)', daterange('2000-01-01', '2000-02-15'), '[1,2)'), - ('[1,2)', daterange('2001-01-01', '2002-01-01'), '[2,3)'), - ('[2,3)', daterange('2000-01-01', '2000-02-15'), '[1,2)'); --- should fail: -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES - ('[3,4)', daterange('2010-01-01', '2010-02-15'), '[1,2)'); -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES - ('[3,4)', daterange('2000-01-01', '2000-02-15'), '[3,4)'); - --- --- partitioned FK referencing updates --- - -UPDATE temporal_partitioned_fk_rng2rng SET valid_at = daterange('2000-01-01', '2000-02-13') WHERE id = '[2,3)'; --- move a row from the first partition to the second -UPDATE temporal_partitioned_fk_rng2rng SET id = '[4,5)' WHERE id = '[1,2)'; --- move a row from the second partition to the first -UPDATE temporal_partitioned_fk_rng2rng SET id = '[1,2)' WHERE id = '[4,5)'; --- should fail: -UPDATE temporal_partitioned_fk_rng2rng SET valid_at = daterange('2000-01-01', '2000-04-01') WHERE id = '[1,2)'; - --- --- partitioned FK referenced updates NO ACTION --- - -TRUNCATE temporal_partitioned_rng, temporal_partitioned_fk_rng2rng; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2016-01-01', '2016-02-01')); -UPDATE temporal_partitioned_rng SET valid_at = daterange('2018-01-01', '2018-02-01') WHERE id = '[5,6)'; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -UPDATE temporal_partitioned_rng SET valid_at = daterange('2016-02-01', '2016-03-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- should fail: -UPDATE temporal_partitioned_rng SET valid_at = daterange('2016-01-01', '2016-02-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); - --- --- partitioned FK referenced deletes NO ACTION --- - -TRUNCATE temporal_partitioned_rng, temporal_partitioned_fk_rng2rng; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -DELETE FROM temporal_partitioned_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- should fail: -DELETE FROM temporal_partitioned_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); - --- --- partitioned FK referenced updates RESTRICT --- - -TRUNCATE temporal_partitioned_rng, temporal_partitioned_fk_rng2rng; -ALTER TABLE temporal_partitioned_fk_rng2rng - DROP CONSTRAINT temporal_partitioned_fk_rng2rng_fk; -ALTER TABLE temporal_partitioned_fk_rng2rng - ADD CONSTRAINT temporal_partitioned_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng - ON DELETE RESTRICT; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2016-01-01', '2016-02-01')); -UPDATE temporal_partitioned_rng SET valid_at = daterange('2018-01-01', '2018-02-01') WHERE id = '[5,6)'; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -UPDATE temporal_partitioned_rng SET valid_at = daterange('2016-02-01', '2016-03-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- should fail: -UPDATE temporal_partitioned_rng SET valid_at = daterange('2016-01-01', '2016-02-01') - WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); - --- --- partitioned FK referenced deletes RESTRICT --- - -TRUNCATE temporal_partitioned_rng, temporal_partitioned_fk_rng2rng; -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-01-01', '2018-02-01')); -INSERT INTO temporal_partitioned_rng (id, valid_at) VALUES ('[5,6)', daterange('2018-02-01', '2018-03-01')); -INSERT INTO temporal_partitioned_fk_rng2rng (id, valid_at, parent_id) VALUES ('[3,4)', daterange('2018-01-05', '2018-01-10'), '[5,6)'); -DELETE FROM temporal_partitioned_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-02-01', '2018-03-01'); --- should fail: -DELETE FROM temporal_partitioned_rng WHERE id = '[5,6)' AND valid_at = daterange('2018-01-01', '2018-02-01'); - --- --- partitioned FK referenced updates CASCADE --- - -ALTER TABLE temporal_partitioned_fk_rng2rng - DROP CONSTRAINT temporal_partitioned_fk_rng2rng_fk, - ADD CONSTRAINT temporal_partitioned_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng - ON DELETE CASCADE ON UPDATE CASCADE; - --- --- partitioned FK referenced deletes CASCADE --- - --- --- partitioned FK referenced updates SET NULL --- - -ALTER TABLE temporal_partitioned_fk_rng2rng - DROP CONSTRAINT temporal_partitioned_fk_rng2rng_fk, - ADD CONSTRAINT temporal_partitioned_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng - ON DELETE SET NULL ON UPDATE SET NULL; - --- --- partitioned FK referenced deletes SET NULL --- - --- --- partitioned FK referenced updates SET DEFAULT --- - -ALTER TABLE temporal_partitioned_fk_rng2rng - ALTER COLUMN parent_id SET DEFAULT '[-1,-1]', - DROP CONSTRAINT temporal_partitioned_fk_rng2rng_fk, - ADD CONSTRAINT temporal_partitioned_fk_rng2rng_fk - FOREIGN KEY (parent_id, PERIOD valid_at) - REFERENCES temporal_partitioned_rng - ON DELETE SET DEFAULT ON UPDATE SET DEFAULT; - --- --- partitioned FK referenced deletes SET DEFAULT --- - -DROP TABLE temporal_partitioned_fk_rng2rng; -DROP TABLE temporal_partitioned_rng; - RESET datestyle; -- 2.44.0