Documentation → PostgreSQL 9.6

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PostgreSQL 9.6.24 Documentation
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Index

Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Symbols

$, Positional Parameters
$libdir, Dynamic Loading
$libdir/plugins, Shared Library Preloading, Description
*, Select-List Items
.pgpass, The Password File
.pg_service.conf, The Connection Service File
::, Type Casts
_PG_fini, Dynamic Loading
_PG_init, Dynamic Loading
_PG_output_plugin_init, Logical Decoding

A

abbrev, Network Address Functions and Operators

ABORT, ABORT

abs, Mathematical Functions and Operators

acos, Mathematical Functions and Operators

acosd, Mathematical Functions and Operators

administration tools

externally maintained, Administration Tools

adminpack, adminpack

advisory lock, Advisory Locks

age, Date/Time Functions and Operators

aggregate function, Aggregate Functions

built-in, Aggregate Functions
invocation, Aggregate Expressions
moving aggregate, Moving-Aggregate Mode
ordered set, Ordered-Set Aggregates
partial aggregation, Partial Aggregation
polymorphic, Polymorphic and Variadic Aggregates
support functions for, Support Functions for Aggregates
user-defined, User-defined Aggregates
variadic, Polymorphic and Variadic Aggregates

AIX

installation on, AIX
IPC configuration, Shared Memory and Semaphores

akeys, hstore Operators and Functions

alias

for table name in query, Joins Between Tables
in the FROM clause, Table and Column Aliases
in the select list, Column Labels

ALL, Subquery Expressions, Row and Array Comparisons

allow_system_table_mods configuration parameter, Developer Options

ALTER AGGREGATE, ALTER AGGREGATE

ALTER COLLATION, ALTER COLLATION

ALTER CONVERSION, ALTER CONVERSION

ALTER DATABASE, ALTER DATABASE

ALTER DEFAULT PRIVILEGES, ALTER DEFAULT PRIVILEGES

ALTER DOMAIN, ALTER DOMAIN

ALTER EVENT TRIGGER, ALTER EVENT TRIGGER

ALTER EXTENSION, ALTER EXTENSION

ALTER FOREIGN DATA WRAPPER, ALTER FOREIGN DATA WRAPPER

ALTER FOREIGN TABLE, ALTER FOREIGN TABLE

ALTER FUNCTION, ALTER FUNCTION

ALTER GROUP, ALTER GROUP

ALTER INDEX, ALTER INDEX

ALTER LANGUAGE, ALTER LANGUAGE

ALTER LARGE OBJECT, ALTER LARGE OBJECT

ALTER MATERIALIZED VIEW, ALTER MATERIALIZED VIEW

ALTER OPERATOR, ALTER OPERATOR

ALTER OPERATOR CLASS, ALTER OPERATOR CLASS

ALTER OPERATOR FAMILY, ALTER OPERATOR FAMILY

ALTER POLICY, ALTER POLICY

ALTER ROLE, Role Attributes, ALTER ROLE

ALTER RULE, ALTER RULE

ALTER SCHEMA, ALTER SCHEMA

ALTER SEQUENCE, ALTER SEQUENCE

ALTER SERVER, ALTER SERVER

ALTER SYSTEM, ALTER SYSTEM

ALTER TABLE, ALTER TABLE

ALTER TABLESPACE, ALTER TABLESPACE

ALTER TEXT SEARCH CONFIGURATION, ALTER TEXT SEARCH CONFIGURATION

ALTER TEXT SEARCH DICTIONARY, ALTER TEXT SEARCH DICTIONARY

ALTER TEXT SEARCH PARSER, ALTER TEXT SEARCH PARSER

ALTER TEXT SEARCH TEMPLATE, ALTER TEXT SEARCH TEMPLATE

ALTER TRIGGER, ALTER TRIGGER

ALTER TYPE, ALTER TYPE

ALTER USER, ALTER USER

ALTER USER MAPPING, ALTER USER MAPPING

ALTER VIEW, ALTER VIEW

ANALYZE, Updating Planner Statistics, ANALYZE

AND (operator), Logical Operators

anonymous code blocks, DO

any, Pseudo-Types, Aggregate Functions, Subquery Expressions, Row and Array Comparisons

anyarray, Pseudo-Types

anyelement, Pseudo-Types

anyenum, Pseudo-Types

anynonarray, Pseudo-Types

anyrange, Pseudo-Types

applicable role, applicable_roles

application_name configuration parameter, What To Log

arbitrary precision numbers, Arbitrary Precision Numbers

archive_cleanup_command recovery parameter, Archive Recovery Settings

archive_command configuration parameter, Archiving

archive_mode configuration parameter, Archiving

archive_timeout configuration parameter, Archiving

area, Geometric Functions and Operators

armor, armor(), dearmor()

ARRAY, Array Constructors, Arrays

accessing, Accessing Arrays
constant, Array Value Input
constructor, Array Constructors
declaration, Declaration of Array Types
determination of result type, UNION, CASE, and Related Constructs
I/O, Array Input and Output Syntax
modifying, Modifying Arrays
of user-defined type, User-defined Types
searching, Searching in Arrays

array_agg, Aggregate Functions, Functions

array_append, Array Functions and Operators

array_cat, Array Functions and Operators

array_dims, Array Functions and Operators

array_fill, Array Functions and Operators

array_length, Array Functions and Operators

array_lower, Array Functions and Operators

array_ndims, Array Functions and Operators

array_nulls configuration parameter, Previous PostgreSQL Versions

array_position, Array Functions and Operators

array_positions, Array Functions and Operators

array_prepend, Array Functions and Operators

array_remove, Array Functions and Operators

array_replace, Array Functions and Operators

array_to_json, JSON Functions and Operators

array_to_string, Array Functions and Operators

array_to_tsvector, Text Search Functions and Operators

array_upper, Array Functions and Operators

ascii, String Functions and Operators

asin, Mathematical Functions and Operators

asind, Mathematical Functions and Operators

ASSERT

in PL/pgSQL, Checking Assertions

assertions

in PL/pgSQL, Checking Assertions

asynchronous commit, Asynchronous Commit

AT TIME ZONE, AT TIME ZONE

atan, Mathematical Functions and Operators

atan2, Mathematical Functions and Operators

atan2d, Mathematical Functions and Operators

atand, Mathematical Functions and Operators

authentication_timeout configuration parameter, Security and Authentication

auth_delay, auth_delay

auth_delay.milliseconds configuration parameter, Configuration Parameters

auto-increment

see serial

autocommit

bulk-loading data, Disable Autocommit
psql, Variables

autovacuum

configuration parameters, Automatic Vacuuming
general information, The Autovacuum Daemon

autovacuum configuration parameter, Automatic Vacuuming

autovacuum_analyze_scale_factor configuration parameter, Automatic Vacuuming

autovacuum_analyze_threshold configuration parameter, Automatic Vacuuming

autovacuum_freeze_max_age configuration parameter, Automatic Vacuuming

autovacuum_max_workers configuration parameter, Automatic Vacuuming

autovacuum_multixact_freeze_max_age configuration parameter, Automatic Vacuuming

autovacuum_naptime configuration parameter, Automatic Vacuuming

autovacuum_vacuum_cost_delay configuration parameter, Automatic Vacuuming

autovacuum_vacuum_cost_limit configuration parameter, Automatic Vacuuming

autovacuum_vacuum_scale_factor configuration parameter, Automatic Vacuuming

autovacuum_vacuum_threshold configuration parameter, Automatic Vacuuming

autovacuum_work_mem configuration parameter, Memory

auto_explain, auto_explain

auto_explain.log_analyze configuration parameter, Configuration Parameters

auto_explain.log_buffers configuration parameter, Configuration Parameters

auto_explain.log_format configuration parameter, Configuration Parameters

auto_explain.log_min_duration configuration parameter, Configuration Parameters

auto_explain.log_nested_statements configuration parameter, Configuration Parameters

auto_explain.log_timing configuration parameter, Configuration Parameters

auto_explain.log_triggers configuration parameter, Configuration Parameters

auto_explain.log_verbose configuration parameter, Configuration Parameters

auto_explain.sample_rate configuration parameter, Configuration Parameters

avals, hstore Operators and Functions

average, Aggregate Functions

avg, Aggregate Functions

B

B-tree

see index

backend_flush_after configuration parameter, Asynchronous Behavior

Background workers, Background Worker Processes

backslash escapes, String Constants with C-style Escapes

backslash_quote configuration parameter, Previous PostgreSQL Versions

backup, Backup Control Functions, Backup and Restore

base type, The PostgreSQL Type System

BASE_BACKUP, Streaming Replication Protocol

BEGIN, BEGIN

BETWEEN, Comparison Functions and Operators

BETWEEN SYMMETRIC, Comparison Functions and Operators

BGWORKER_BACKEND_DATABASE_CONNECTION, Background Worker Processes

BGWORKER_SHMEM_ACCESS, Background Worker Processes

bgwriter_delay configuration parameter, Background Writer

bgwriter_flush_after configuration parameter, Background Writer

bgwriter_lru_maxpages configuration parameter, Background Writer

bgwriter_lru_multiplier configuration parameter, Background Writer

bigint, Numeric Constants, Integer Types

bigserial, Serial Types

binary data, Binary Data Types

functions, Binary String Functions and Operators

binary string

concatenation, Binary String Functions and Operators
length, Binary String Functions and Operators

bison, Requirements

bit string

constant, Bit-string Constants
data type, Bit String Types

bit strings

functions, Bit String Functions and Operators

bitmap scan, Combining Multiple Indexes, Planner Method Configuration

bit_and, Aggregate Functions

bit_length, String Functions and Operators

bit_or, Aggregate Functions

BLOB

see large object

block_size configuration parameter, Preset Options

bloom, bloom

bonjour configuration parameter, Connection Settings

bonjour_name configuration parameter, Connection Settings

Boolean

data type, Boolean Type

operators

see operators, logical

bool_and, Aggregate Functions

bool_or, Aggregate Functions

booting

starting the server during, Starting the Database Server

box, Geometric Functions and Operators

box (data type), Boxes

BRIN

see index

brin_metapage_info, Functions

brin_page_items, Functions

brin_page_type, Functions

brin_revmap_data, Functions

brin_summarize_new_values, Index Maintenance Functions

broadcast, Network Address Functions and Operators

BSD Authentication, BSD Authentication

btree_gin, btree_gin

btree_gist, btree_gist

btrim, String Functions and Operators, Binary String Functions and Operators

bt_metap, Functions

bt_page_items, Functions

bt_page_stats, Functions

bytea, Binary Data Types

bytea_output configuration parameter, Statement Behavior

C

C, libpq - C Library, ECPG - Embedded SQL in C

C++, Using C++ for Extensibility

canceling

SQL command, Canceling Queries in Progress

cardinality, Array Functions and Operators

CASCADE

with DROP, Dependency Tracking
foreign key action, Foreign Keys

Cascading Replication, High Availability, Load Balancing, and Replication

CASE, Conditional Expressions

determination of result type, UNION, CASE, and Related Constructs

case sensitivity

of SQL commands, Identifiers and Key Words

cast

I/O conversion, CREATE CAST

cbrt, Mathematical Functions and Operators

ceil, Mathematical Functions and Operators

ceiling, Mathematical Functions and Operators

center, Geometric Functions and Operators

Certificate, Certificate Authentication

char, Character Types

character, Character Types

character set, Locale and Formatting, Preset Options, Character Set Support

character string

concatenation, String Functions and Operators
constant, String Constants
data types, Character Types
length, String Functions and Operators

character varying, Character Types

char_length, String Functions and Operators

check constraint, Check Constraints

CHECK OPTION, CREATE VIEW

checkpoint, WAL Configuration, CHECKPOINT

checkpoint_completion_target configuration parameter, Checkpoints

checkpoint_flush_after configuration parameter, Checkpoints

checkpoint_timeout configuration parameter, Checkpoints

checkpoint_warning configuration parameter, Checkpoints

check_function_bodies configuration parameter, Statement Behavior

chkpass, chkpass

chr, String Functions and Operators

cid, Object Identifier Types

cidr, cidr

circle, Circles, Geometric Functions and Operators

citext, citext

client authentication, Client Authentication

timeout during, Security and Authentication

client_encoding configuration parameter, Locale and Formatting

client_min_messages configuration parameter, Statement Behavior

clock_timestamp, Date/Time Functions and Operators

CLOSE, CLOSE

CLUSTER, CLUSTER

of databases

see database cluster

clusterdb, clusterdb

clustering, High Availability, Load Balancing, and Replication

cluster_name configuration parameter, Process Title

cmax, System Columns

cmin, System Columns

COALESCE, COALESCE

COLLATE, Collation Expressions

collation, Collation Support

in PL/pgSQL, Collation of PL/pgSQL Variables
in SQL functions, SQL Functions with Collations

collation for, System Information Functions

column, Concepts, Table Basics

adding, Adding a Column
removing, Removing a Column
renaming, Renaming a Column
system column, System Columns

column data type

changing, Changing a Column's Data Type

column reference, Column References

col_description, System Information Functions

COMMENT, COMMENT

about database objects, System Information Functions
in SQL, Comments

COMMIT, COMMIT

COMMIT PREPARED, COMMIT PREPARED

commit_delay configuration parameter, Settings

commit_siblings configuration parameter, Settings

common table expression

see WITH

comparison

composite type, Row and Array Comparisons
operators, Comparison Functions and Operators
row constructor, Row and Array Comparisons
subquery result row, Subquery Expressions

compiling

libpq applications, Building libpq Programs

composite type, Composite Types, The PostgreSQL Type System

comparison, Row and Array Comparisons
constant, Constructing Composite Values
constructor, Row Constructors

computed field, Using Composite Types in Queries

concat, String Functions and Operators

concat_ws, String Functions and Operators

concurrency, Concurrency Control

conditional expression, Conditional Expressions

configuration

of recovery

of a standby server, Recovery Configuration

of the server, Server Configuration

of the server

functions, Configuration Settings Functions

configure, Installation Procedure

config_file configuration parameter, File Locations

conjunction, Logical Operators

connectby, Functions Provided, connectby

connection service file, The Connection Service File

conninfo, Connection Strings

constant, Constants

constraint, Constraints

adding, Adding a Constraint
check, Check Constraints
exclusion, Exclusion Constraints
foreign key, Foreign Keys
name, Check Constraints
NOT NULL, Not-Null Constraints
primary key, Primary Keys
removing, Removing a Constraint
unique, Unique Constraints

constraint exclusion, Partitioning and Constraint Exclusion, Other Planner Options

constraint_exclusion configuration parameter, Other Planner Options

CONTINUE

in PL/pgSQL, CONTINUE

continuous archiving, Backup and Restore

in standby, Continuous archiving in standby

control file, Extension Files

convert, String Functions and Operators

convert_from, String Functions and Operators

convert_to, String Functions and Operators

COPY, Populating a Table With Rows, COPY

with libpq, Functions Associated with the COPY Command

corr, Aggregate Functions

correlation, Aggregate Functions

cos, Mathematical Functions and Operators

cosd, Mathematical Functions and Operators

cot, Mathematical Functions and Operators

cotd, Mathematical Functions and Operators

count, Aggregate Functions

covariance

population, Aggregate Functions
sample, Aggregate Functions

covar_pop, Aggregate Functions

covar_samp, Aggregate Functions

cpu_index_tuple_cost configuration parameter, Planner Cost Constants

cpu_operator_cost configuration parameter, Planner Cost Constants

cpu_tuple_cost configuration parameter, Planner Cost Constants

CREATE ACCESS METHOD, CREATE ACCESS METHOD

CREATE AGGREGATE, CREATE AGGREGATE

CREATE CAST, CREATE CAST

CREATE COLLATION, CREATE COLLATION

CREATE CONVERSION, CREATE CONVERSION

CREATE DATABASE, Creating a Database, CREATE DATABASE

CREATE DOMAIN, CREATE DOMAIN

CREATE EVENT TRIGGER, CREATE EVENT TRIGGER

CREATE EXTENSION, CREATE EXTENSION

CREATE FOREIGN DATA WRAPPER, CREATE FOREIGN DATA WRAPPER

CREATE FOREIGN TABLE, CREATE FOREIGN TABLE

CREATE FUNCTION, CREATE FUNCTION

CREATE GROUP, CREATE GROUP

CREATE INDEX, CREATE INDEX

CREATE LANGUAGE, CREATE LANGUAGE

CREATE MATERIALIZED VIEW, CREATE MATERIALIZED VIEW

CREATE OPERATOR, CREATE OPERATOR

CREATE OPERATOR CLASS, CREATE OPERATOR CLASS

CREATE OPERATOR FAMILY, CREATE OPERATOR FAMILY

CREATE POLICY, CREATE POLICY

CREATE ROLE, Database Roles, CREATE ROLE

CREATE RULE, CREATE RULE

CREATE SCHEMA, CREATE SCHEMA

CREATE SEQUENCE, CREATE SEQUENCE

CREATE SERVER, CREATE SERVER

CREATE TABLE, Creating a New Table, CREATE TABLE

CREATE TABLE AS, CREATE TABLE AS

CREATE TABLESPACE, Tablespaces, CREATE TABLESPACE

CREATE TEXT SEARCH CONFIGURATION, CREATE TEXT SEARCH CONFIGURATION

CREATE TEXT SEARCH DICTIONARY, CREATE TEXT SEARCH DICTIONARY

CREATE TEXT SEARCH PARSER, CREATE TEXT SEARCH PARSER

CREATE TEXT SEARCH TEMPLATE, CREATE TEXT SEARCH TEMPLATE

CREATE TRANSFORM, CREATE TRANSFORM

CREATE TRIGGER, CREATE TRIGGER

CREATE TYPE, CREATE TYPE

CREATE USER, CREATE USER

CREATE USER MAPPING, CREATE USER MAPPING

CREATE VIEW, CREATE VIEW

createdb, Creating a Database, Creating a Database, createdb

createlang, createlang

createuser, Database Roles, createuser

CREATE_REPLICATION_SLOT, Streaming Replication Protocol

cross compilation, Installation Procedure

cross join, Joined Tables

crosstab, crosstab(text), crosstabN(text), crosstab(text, text)

crypt, crypt()

cstring, Pseudo-Types

ctid, System Columns, View Rules in Non-SELECT Statements

CUBE, GROUPING SETS, CUBE, and ROLLUP

cube (extension), cube

cume_dist, Window Functions

hypothetical, Aggregate Functions

current_catalog, System Information Functions

current_database, System Information Functions

current_date, Date/Time Functions and Operators

current_query, System Information Functions

current_role, System Information Functions

current_schema, System Information Functions

current_schemas, System Information Functions

current_setting, Configuration Settings Functions

current_time, Date/Time Functions and Operators

current_timestamp, Date/Time Functions and Operators

current_user, System Information Functions

currval, Sequence Manipulation Functions

cursor

CLOSE, CLOSE
DECLARE, DECLARE
FETCH, FETCH
in PL/pgSQL, Cursors
MOVE, MOVE
showing the query plan, EXPLAIN

cursor_tuple_fraction configuration parameter, Other Planner Options

custom scan provider

handler for, Writing A Custom Scan Provider

Cygwin

installation on, Cygwin

D

data area

see database cluster

data partitioning, High Availability, Load Balancing, and Replication

data type, Data Types

base, The PostgreSQL Type System
category, Overview
composite, The PostgreSQL Type System
constant, Constants of Other Types
conversion, Type Conversion
enumerated (enum), Enumerated Types
internal organization, Base Types in C-Language Functions
numeric, Numeric Types
type cast, Type Casts
user-defined, User-defined Types

database, Managing Databases

creating, Creating a Database
privilege to create, Role Attributes

database activity

monitoring, Monitoring Database Activity

database cluster, Concepts, Creating a Database Cluster

data_checksums configuration parameter, Preset Options

data_directory configuration parameter, File Locations

data_sync_retry configuration parameter, Error Handling

date, Date/Time Types, Dates

constants, Special Values

current, Current Date/Time

output format, Date/Time Output

see also formatting

DateStyle configuration parameter, Locale and Formatting

date_part, Date/Time Functions and Operators, EXTRACT, date_part

date_trunc, Date/Time Functions and Operators, date_trunc

dblink, dblink, dblink

dblink_build_sql_delete, dblink_build_sql_delete

dblink_build_sql_insert, dblink_build_sql_insert

dblink_build_sql_update, dblink_build_sql_update

dblink_cancel_query, dblink_cancel_query

dblink_close, dblink_close

dblink_connect, dblink_connect

dblink_connect_u, dblink_connect_u

dblink_disconnect, dblink_disconnect

dblink_error_message, dblink_error_message

dblink_exec, dblink_exec

dblink_fetch, dblink_fetch

dblink_get_connections, dblink_get_connections

dblink_get_notify, dblink_get_notify

dblink_get_pkey, dblink_get_pkey

dblink_get_result, dblink_get_result

dblink_is_busy, dblink_is_busy

dblink_open, dblink_open

dblink_send_query, dblink_send_query

db_user_namespace configuration parameter, Security and Authentication

deadlock, Deadlocks

timeout during, Lock Management

deadlock_timeout configuration parameter, Lock Management

DEALLOCATE, DEALLOCATE

dearmor, armor(), dearmor()

debug_assertions configuration parameter, Preset Options

debug_deadlocks configuration parameter, Developer Options

debug_pretty_print configuration parameter, What To Log

debug_print_parse configuration parameter, What To Log

debug_print_plan configuration parameter, What To Log

debug_print_rewritten configuration parameter, What To Log

decimal

see numeric

DECLARE, DECLARE

decode, String Functions and Operators, Binary String Functions and Operators

decode_bytea

in PL/Perl, Utility Functions in PL/Perl

decrypt, Raw Encryption Functions

decrypt_iv, Raw Encryption Functions

default value, Default Values

changing, Changing a Column's Default Value

default_statistics_target configuration parameter, Other Planner Options

default_tablespace configuration parameter, Statement Behavior

default_text_search_config configuration parameter, Locale and Formatting

default_transaction_deferrable configuration parameter, Statement Behavior

default_transaction_isolation configuration parameter, Statement Behavior

default_transaction_read_only configuration parameter, Statement Behavior

default_with_oids configuration parameter, Previous PostgreSQL Versions

deferrable transaction, Statement Behavior

setting, SET TRANSACTION
setting default, Statement Behavior

defined, hstore Operators and Functions

degrees, Mathematical Functions and Operators

delay, Delaying Execution

DELETE, Deletions, Deleting Data, DELETE, hstore Operators and Functions

RETURNING, Returning Data From Modified Rows

deleting, Deleting Data

dense_rank, Window Functions

hypothetical, Aggregate Functions

diameter, Geometric Functions and Operators

dict_int, dict_int

dict_xsyn, dict_xsyn

difference, Soundex

digest, digest()

dirty read, Transaction Isolation

DISCARD, DISCARD

disjunction, Logical Operators

disk drive, WAL Internals

disk space, Recovering Disk Space

disk usage, Determining Disk Usage

DISTINCT, Querying a Table, DISTINCT

div, Mathematical Functions and Operators

dmetaphone, Double Metaphone

dmetaphone_alt, Double Metaphone

DO, DO

document

text search, What Is a Document?

dollar quoting, Dollar-quoted String Constants

double precision, Floating-Point Types

DROP ACCESS METHOD, DROP ACCESS METHOD

DROP AGGREGATE, DROP AGGREGATE

DROP CAST, DROP CAST

DROP COLLATION, DROP COLLATION

DROP CONVERSION, DROP CONVERSION

DROP DATABASE, Destroying a Database, DROP DATABASE

DROP DOMAIN, DROP DOMAIN

DROP EVENT TRIGGER, DROP EVENT TRIGGER

DROP EXTENSION, DROP EXTENSION

DROP FOREIGN DATA WRAPPER, DROP FOREIGN DATA WRAPPER

DROP FOREIGN TABLE, DROP FOREIGN TABLE

DROP FUNCTION, DROP FUNCTION

DROP GROUP, DROP GROUP

DROP INDEX, DROP INDEX

DROP LANGUAGE, DROP LANGUAGE

DROP MATERIALIZED VIEW, DROP MATERIALIZED VIEW

DROP OPERATOR, DROP OPERATOR

DROP OPERATOR CLASS, DROP OPERATOR CLASS

DROP OPERATOR FAMILY, DROP OPERATOR FAMILY

DROP OWNED, DROP OWNED

DROP POLICY, DROP POLICY

DROP ROLE, Database Roles, DROP ROLE

DROP RULE, DROP RULE

DROP SCHEMA, DROP SCHEMA

DROP SEQUENCE, DROP SEQUENCE

DROP SERVER, DROP SERVER

DROP TABLE, Creating a New Table, DROP TABLE

DROP TABLESPACE, DROP TABLESPACE

DROP TEXT SEARCH CONFIGURATION, DROP TEXT SEARCH CONFIGURATION

DROP TEXT SEARCH DICTIONARY, DROP TEXT SEARCH DICTIONARY

DROP TEXT SEARCH PARSER, DROP TEXT SEARCH PARSER

DROP TEXT SEARCH TEMPLATE, DROP TEXT SEARCH TEMPLATE

DROP TRANSFORM, DROP TRANSFORM

DROP TRIGGER, DROP TRIGGER

DROP TYPE, DROP TYPE

DROP USER, DROP USER

DROP USER MAPPING, DROP USER MAPPING

DROP VIEW, DROP VIEW

dropdb, Destroying a Database, dropdb

droplang, droplang

dropuser, Database Roles, dropuser

DROP_REPLICATION_SLOT, Streaming Replication Protocol

DTD, Creating XML Values

DTrace, Installation Procedure, Dynamic Tracing

duplicate, Querying a Table

duplicates, DISTINCT

dynamic loading, Other Defaults, Dynamic Loading

dynamic_library_path, Dynamic Loading

dynamic_library_path configuration parameter, Other Defaults

dynamic_shared_memory_type configuration parameter, Memory

E

each, hstore Operators and Functions

earth, Cube-based Earth Distances

earthdistance, earthdistance

earth_box, Cube-based Earth Distances

earth_distance, Cube-based Earth Distances

ECPG, ECPG - Embedded SQL in C, ecpg

effective_cache_size configuration parameter, Planner Cost Constants

effective_io_concurrency configuration parameter, Asynchronous Behavior

elog, Reporting Errors Within the Server

in PL/Perl, Utility Functions in PL/Perl
in PL/Python, Utility Functions
in PL/Tcl, Database Access from PL/Tcl

embedded SQL

in C, ECPG - Embedded SQL in C

enabled role, enabled_roles

enable_bitmapscan configuration parameter, Planner Method Configuration

enable_hashagg configuration parameter, Planner Method Configuration

enable_hashjoin configuration parameter, Planner Method Configuration

enable_indexonlyscan configuration parameter, Planner Method Configuration

enable_indexscan configuration parameter, Planner Method Configuration

enable_material configuration parameter, Planner Method Configuration

enable_mergejoin configuration parameter, Planner Method Configuration

enable_nestloop configuration parameter, Planner Method Configuration

enable_seqscan configuration parameter, Planner Method Configuration

enable_sort configuration parameter, Planner Method Configuration

enable_tidscan configuration parameter, Planner Method Configuration

encode, String Functions and Operators, Binary String Functions and Operators

encode_array_constructor

in PL/Perl, Utility Functions in PL/Perl

encode_array_literal

in PL/Perl, Utility Functions in PL/Perl

encode_bytea

in PL/Perl, Utility Functions in PL/Perl

encode_typed_literal

in PL/Perl, Utility Functions in PL/Perl

encrypt, Raw Encryption Functions

encryption, Encryption Options

for specific columns, pgcrypto

encrypt_iv, Raw Encryption Functions

END, END

enumerated types, Enumerated Types

enum_first, Enum Support Functions

enum_last, Enum Support Functions

enum_range, Enum Support Functions

environment variable, Environment Variables

ereport, Reporting Errors Within the Server

error codes

libpq, Main Functions
list of, PostgreSQL Error Codes

error message, Connection Status Functions

escape string syntax, String Constants with C-style Escapes

escape_string_warning configuration parameter, Previous PostgreSQL Versions

escaping strings

in libpq, Escaping Strings for Inclusion in SQL Commands

event log

event log, Registering Event Log on Windows

event trigger, Event Triggers

in C, Writing Event Trigger Functions in C
in PL/Tcl, Event Trigger Procedures in PL/Tcl

event_source configuration parameter, Where To Log

event_trigger, Pseudo-Types

every, Aggregate Functions

EXCEPT, Combining Queries

exceptions

in PL/pgSQL, Trapping Errors
in PL/Tcl, Error Handling in PL/Tcl

exclusion constraint, Exclusion Constraints

EXECUTE, EXECUTE

exist, hstore Operators and Functions

EXISTS, Subquery Expressions

EXIT

in PL/pgSQL, EXIT

exit_on_error configuration parameter, Error Handling

exp, Mathematical Functions and Operators

EXPLAIN, Using EXPLAIN, EXPLAIN

expression

order of evaluation, Expression Evaluation Rules
syntax, Value Expressions

extending SQL, Extending SQL

extension, Packaging Related Objects into an Extension

externally maintained, Extensions

external_pid_file configuration parameter, File Locations

extract, Date/Time Functions and Operators, EXTRACT, date_part

extra_float_digits configuration parameter, Locale and Formatting

F

factorial, Mathematical Functions and Operators

failover, High Availability, Load Balancing, and Replication

false, Boolean Type

family, Network Address Functions and Operators

fast path, The Fast-Path Interface

fdw_handler, Pseudo-Types

FETCH, FETCH

field

computed, Using Composite Types in Queries

field selection, Field Selection

file system mount points, Use of Secondary File Systems

file_fdw, file_fdw

FILTER, Aggregate Expressions

first_value, Window Functions

flex, Requirements

float4

see real

float8

see double precision

floating point, Floating-Point Types

floating-point

display, Locale and Formatting

floor, Mathematical Functions and Operators

force_parallel_mode configuration parameter, Other Planner Options

foreign data, Foreign Data

foreign data wrapper

handler for, Writing A Foreign Data Wrapper

foreign key, Foreign Keys, Foreign Keys

self-referential, Foreign Keys

foreign table, Foreign Data

format, String Functions and Operators, format

use in PL/pgSQL, Executing Dynamic Commands

formatting, Data Type Formatting Functions

format_type, System Information Functions

Free Space Map, Free Space Map

FreeBSD

IPC configuration, Shared Memory and Semaphores
shared library, Compiling and Linking Dynamically-loaded Functions
start script, Starting the Database Server

from_collapse_limit configuration parameter, Other Planner Options

FSM

see Free Space Map

fsm_page_contents, Functions

fsync configuration parameter, Settings

full text search, Full Text Search

data types, Text Search Types
functions and operators, Text Search Types

full_page_writes configuration parameter, Settings

function, Functions and Operators

default values for arguments, SQL Functions with Default Values for Arguments

in the FROM clause, Table Functions

internal, Internal Functions

invocation, Function Calls

mixed notation, Using Mixed Notation

named argument, Arguments for SQL Functions

named notation, Using Named Notation

output parameter, SQL Functions with Output Parameters

polymorphic, Polymorphic Types

positional notation, Using Positional Notation

RETURNS TABLE, SQL Functions Returning TABLE

type resolution in an invocation, Functions

user-defined, User-defined Functions

in C, C-Language Functions
in SQL, Query Language (SQL) Functions

variadic, SQL Functions with Variable Numbers of Arguments

with SETOF, SQL Functions Returning Sets

functional dependency, The GROUP BY and HAVING Clauses

fuzzystrmatch, fuzzystrmatch

G

gc_to_sec, Cube-based Earth Distances

generate_series, Set Returning Functions

generate_subscripts, Set Returning Functions

genetic query optimization, Genetic Query Optimizer

gen_random_bytes, Random-Data Functions

gen_random_uuid, Random-Data Functions

gen_salt, gen_salt()

GEQO

see genetic query optimization

geqo configuration parameter, Genetic Query Optimizer

geqo_effort configuration parameter, Genetic Query Optimizer

geqo_generations configuration parameter, Genetic Query Optimizer

geqo_pool_size configuration parameter, Genetic Query Optimizer

geqo_seed configuration parameter, Genetic Query Optimizer

geqo_selection_bias configuration parameter, Genetic Query Optimizer

geqo_threshold configuration parameter, Genetic Query Optimizer

get_bit, Binary String Functions and Operators

get_byte, Binary String Functions and Operators

get_current_ts_config, Text Search Functions and Operators

get_raw_page, Functions

GIN

see index

gin_clean_pending_list, Index Maintenance Functions

gin_fuzzy_search_limit configuration parameter, Other Defaults

gin_leafpage_items, Functions

gin_metapage_info, Functions

gin_page_opaque_info, Functions

gin_pending_list_limit configuration parameter, Statement Behavior

GiST

see index

global data

in PL/Python, Sharing Data
in PL/Tcl, Global Data in PL/Tcl

GRANT, Privileges, GRANT

GREATEST, GREATEST and LEAST

determination of result type, UNION, CASE, and Related Constructs

Gregorian calendar, History of Units

GROUP BY, Aggregate Functions, The GROUP BY and HAVING Clauses

grouping, The GROUP BY and HAVING Clauses, Aggregate Functions

GROUPING SETS, GROUPING SETS, CUBE, and ROLLUP

GSSAPI, GSSAPI Authentication

GUID, UUID Type

H

hash

see index

has_any_column_privilege, System Information Functions

has_column_privilege, System Information Functions

has_database_privilege, System Information Functions

has_foreign_data_wrapper_privilege, System Information Functions

has_function_privilege, System Information Functions

has_language_privilege, System Information Functions

has_schema_privilege, System Information Functions

has_sequence_privilege, System Information Functions

has_server_privilege, System Information Functions

has_tablespace_privilege, System Information Functions

has_table_privilege, System Information Functions

has_type_privilege, System Information Functions

HAVING, Aggregate Functions, The GROUP BY and HAVING Clauses

hba_file configuration parameter, File Locations

heap_page_items, Functions

heap_page_item_attrs, Functions

height, Geometric Functions and Operators

hierarchical database, Concepts

high availability, High Availability, Load Balancing, and Replication

history

of PostgreSQL, A Brief History of PostgreSQL

hmac, hmac()

host, Network Address Functions and Operators

host name, Parameter Key Words

hostmask, Network Address Functions and Operators

Hot Standby, High Availability, Load Balancing, and Replication

hot_standby configuration parameter, Standby Servers

hot_standby_feedback configuration parameter, Standby Servers

HP-UX

installation on, HP-UX
IPC configuration, Shared Memory and Semaphores
shared library, Compiling and Linking Dynamically-loaded Functions

hstore, hstore, hstore Operators and Functions

hstore_to_array, hstore Operators and Functions

hstore_to_json, hstore Operators and Functions

hstore_to_jsonb, hstore Operators and Functions

hstore_to_jsonb_loose, hstore Operators and Functions

hstore_to_json_loose, hstore Operators and Functions

hstore_to_matrix, hstore Operators and Functions

huge_pages configuration parameter, Memory

hypothetical-set aggregate

built-in, Aggregate Functions

I

icount, intarray Functions and Operators

ident, Ident Authentication

identifier

length, Identifiers and Key Words
syntax of, Identifiers and Key Words

IDENTIFY_SYSTEM, Streaming Replication Protocol

ident_file configuration parameter, File Locations

idle_in_transaction_session_timeout configuration parameter, Statement Behavior

idx, intarray Functions and Operators

IFNULL, COALESCE

ignore_checksum_failure configuration parameter, Developer Options

ignore_system_indexes configuration parameter, Developer Options

IMMUTABLE, Function Volatility Categories

IMPORT FOREIGN SCHEMA, IMPORT FOREIGN SCHEMA

IN, Subquery Expressions, Row and Array Comparisons

include

in configuration file, Managing Configuration File Contents

include_dir

in configuration file, Managing Configuration File Contents

include_if_exists

in configuration file, Managing Configuration File Contents

index, Indexes, Operators and Functions

and ORDER BY, Indexes and ORDER BY

B-tree, Index Types

BRIN, Index Types, BRIN Indexes

building concurrently, Building Indexes Concurrently

combining multiple indexes, Combining Multiple Indexes

examining usage, Examining Index Usage

on expressions, Indexes on Expressions

for user-defined data type, Interfacing Extensions To Indexes

GIN, Index Types, GIN Indexes

text search, GIN and GiST Index Types

GiST, Index Types, GiST Indexes

text search, GIN and GiST Index Types

hash, Index Types

index-only scans, Index-Only Scans

locks, Locking and Indexes

multicolumn, Multicolumn Indexes

partial, Partial Indexes

SP-GiST, Index Types, SP-GiST Indexes

unique, Unique Indexes

index scan, Planner Method Configuration

index-only scan, Index-Only Scans

index_am_handler, Pseudo-Types

inet (data type), inet

inet_client_addr, System Information Functions

inet_client_port, System Information Functions

inet_merge, Network Address Functions and Operators

inet_same_family, Network Address Functions and Operators

inet_server_addr, System Information Functions

inet_server_port, System Information Functions

information schema, The Information Schema

inheritance, Inheritance, Inheritance, Previous PostgreSQL Versions

initcap, String Functions and Operators

initdb, Creating a Database Cluster, initdb

Initialization Fork, The Initialization Fork

input function, User-defined Types

INSERT, Populating a Table With Rows, Inserting Data, INSERT

RETURNING, Returning Data From Modified Rows

inserting, Inserting Data

installation, Installation from Source Code

on Windows, Installation from Source Code on Windows

instr function, Appendix

int2

see smallint

int4

see integer

int8

see bigint

intagg, intagg

intarray, intarray

integer, Numeric Constants, Integer Types

integer_datetimes configuration parameter, Preset Options

interfaces

externally maintained, Client Interfaces

internal, Pseudo-Types

INTERSECT, Combining Queries

interval, Date/Time Types, Interval Input

output format, Interval Output

see also formatting

IntervalStyle configuration parameter, Locale and Formatting

intset, intarray Functions and Operators

int_array_aggregate, Functions

int_array_enum, Functions

inverse distribution, Aggregate Functions

IS DISTINCT FROM, Comparison Functions and Operators, Row and Array Comparisons

IS DOCUMENT, IS DOCUMENT

IS FALSE, Comparison Functions and Operators

IS NOT DISTINCT FROM, Comparison Functions and Operators, Row and Array Comparisons

IS NOT DOCUMENT, IS NOT DOCUMENT

IS NOT FALSE, Comparison Functions and Operators

IS NOT NULL, Comparison Functions and Operators

IS NOT TRUE, Comparison Functions and Operators

IS NOT UNKNOWN, Comparison Functions and Operators

IS NULL, Comparison Functions and Operators, Platform and Client Compatibility

IS TRUE, Comparison Functions and Operators

IS UNKNOWN, Comparison Functions and Operators

isclosed, Geometric Functions and Operators

isempty, Range Functions and Operators

isfinite, Date/Time Functions and Operators

isn, isn

ISNULL, Comparison Functions and Operators

isn_weak, Functions and Operators

isopen, Geometric Functions and Operators

is_array_ref

in PL/Perl, Utility Functions in PL/Perl

is_valid, Functions and Operators

J

join, Joins Between Tables, Joined Tables

controlling the order, Controlling the Planner with Explicit JOIN Clauses
cross, Joined Tables
left, Joined Tables
natural, Joined Tables
outer, Joins Between Tables, Joined Tables
right, Joined Tables
self, Joins Between Tables

join_collapse_limit configuration parameter, Other Planner Options

JSON, JSON Types

functions and operators, JSON Functions and Operators

JSONB, JSON Types

containment, jsonb Containment and Existence
existence, jsonb Containment and Existence
indexes on, jsonb Indexing

jsonb_agg, Aggregate Functions

jsonb_array_elements, JSON Functions and Operators

jsonb_array_elements_text, JSON Functions and Operators

jsonb_array_length, JSON Functions and Operators

jsonb_build_array, JSON Functions and Operators

jsonb_build_object, JSON Functions and Operators

jsonb_each, JSON Functions and Operators

jsonb_each_text, JSON Functions and Operators

jsonb_extract_path, JSON Functions and Operators

jsonb_extract_path_text, JSON Functions and Operators

jsonb_insert, JSON Functions and Operators

jsonb_object, JSON Functions and Operators

jsonb_object_agg, Aggregate Functions

jsonb_object_keys, JSON Functions and Operators

jsonb_populate_record, JSON Functions and Operators

jsonb_populate_recordset, JSON Functions and Operators

jsonb_pretty, JSON Functions and Operators

jsonb_set, JSON Functions and Operators

jsonb_strip_nulls, JSON Functions and Operators

jsonb_to_record, JSON Functions and Operators

jsonb_to_recordset, JSON Functions and Operators

jsonb_typeof, JSON Functions and Operators

json_agg, Aggregate Functions

json_array_elements, JSON Functions and Operators

json_array_elements_text, JSON Functions and Operators

json_array_length, JSON Functions and Operators

json_build_array, JSON Functions and Operators

json_build_object, JSON Functions and Operators

json_each, JSON Functions and Operators

json_each_text, JSON Functions and Operators

json_extract_path, JSON Functions and Operators

json_extract_path_text, JSON Functions and Operators

json_object, JSON Functions and Operators

json_object_agg, Aggregate Functions

json_object_keys, JSON Functions and Operators

json_populate_record, JSON Functions and Operators

json_populate_recordset, JSON Functions and Operators

json_strip_nulls, JSON Functions and Operators

json_to_record, JSON Functions and Operators

json_to_recordset, JSON Functions and Operators

json_typeof, JSON Functions and Operators

Julian date, Julian Dates

justify_days, Date/Time Functions and Operators

justify_hours, Date/Time Functions and Operators

justify_interval, Date/Time Functions and Operators

K

key word

list of, SQL Key Words
syntax of, Identifiers and Key Words

krb_caseins_users configuration parameter, Security and Authentication

krb_server_keyfile configuration parameter, Security and Authentication

L

label

see alias

lag, Window Functions

language_handler, Pseudo-Types

large object, Large Objects

lastval, Sequence Manipulation Functions

last_value, Window Functions

LATERAL

in the FROM clause, LATERAL Subqueries

latitude, Cube-based Earth Distances

lca, Operators and Functions

lc_collate configuration parameter, Preset Options

lc_ctype configuration parameter, Preset Options

lc_messages configuration parameter, Locale and Formatting

lc_monetary configuration parameter, Locale and Formatting

lc_numeric configuration parameter, Locale and Formatting

lc_time configuration parameter, Locale and Formatting

LDAP, Installation Procedure, LDAP Authentication

LDAP connection parameter lookup, LDAP Lookup of Connection Parameters

ldconfig, Shared Libraries

lead, Window Functions

LEAST, GREATEST and LEAST

determination of result type, UNION, CASE, and Related Constructs

left, String Functions and Operators

left join, Joined Tables

length, String Functions and Operators, Binary String Functions and Operators, Geometric Functions and Operators, Text Search Functions and Operators

of a binary string

see binary strings, length

of a character string

see character string, length

length(tsvector), Manipulating Documents

levenshtein, Levenshtein

levenshtein_less_equal, Levenshtein

lex, Requirements

libedit, Requirements

libperl, Requirements

libpq, libpq - C Library

single-row mode, Retrieving Query Results Row-By-Row

libpq-fe.h, libpq - C Library, Connection Status Functions

libpq-int.h, Connection Status Functions

libpython, Requirements

library finalization function, Dynamic Loading

library initialization function, Dynamic Loading

LIKE, LIKE

and locales, Behavior

LIMIT, LIMIT and OFFSET

line, Lines

line segment, Line Segments

linear regression, Aggregate Functions

Linux

IPC configuration, Shared Memory and Semaphores
shared library, Compiling and Linking Dynamically-loaded Functions
start script, Starting the Database Server

LISTEN, LISTEN

listen_addresses configuration parameter, Connection Settings

ll_to_earth, Cube-based Earth Distances

ln, Mathematical Functions and Operators

lo, lo

LOAD, LOAD

load balancing, High Availability, Load Balancing, and Replication

locale, Creating a Database Cluster, Locale Support

localtime, Date/Time Functions and Operators

localtimestamp, Date/Time Functions and Operators

local_preload_libraries configuration parameter, Shared Library Preloading

lock, Explicit Locking, Table-level Locks, LOCK

advisory, Advisory Locks
monitoring, Viewing Locks

lock_timeout configuration parameter, Statement Behavior

log, Mathematical Functions and Operators

log shipping, High Availability, Load Balancing, and Replication

logging_collector configuration parameter, Where To Log

Logical Decoding, Logical Decoding, Logical Decoding

login privilege, Role Attributes

log_autovacuum_min_duration configuration parameter, Automatic Vacuuming

log_btree_build_stats configuration parameter, Developer Options

log_checkpoints configuration parameter, What To Log

log_connections configuration parameter, What To Log

log_destination configuration parameter, Where To Log

log_directory configuration parameter, Where To Log

log_disconnections configuration parameter, What To Log

log_duration configuration parameter, What To Log

log_error_verbosity configuration parameter, What To Log

log_executor_stats configuration parameter, Statistics Monitoring

log_filename configuration parameter, Where To Log

log_file_mode configuration parameter, Where To Log

log_hostname configuration parameter, What To Log

log_line_prefix configuration parameter, What To Log

log_lock_waits configuration parameter, What To Log

log_min_duration_statement configuration parameter, When To Log

log_min_error_statement configuration parameter, When To Log

log_min_messages configuration parameter, When To Log

log_parser_stats configuration parameter, Statistics Monitoring

log_planner_stats configuration parameter, Statistics Monitoring

log_replication_commands configuration parameter, What To Log

log_rotation_age configuration parameter, Where To Log

log_rotation_size configuration parameter, Where To Log

log_statement configuration parameter, What To Log

log_statement_stats configuration parameter, Statistics Monitoring

log_temp_files configuration parameter, What To Log

log_timezone configuration parameter, What To Log

log_truncate_on_rotation configuration parameter, Where To Log

longitude, Cube-based Earth Distances

looks_like_number

in PL/Perl, Utility Functions in PL/Perl

loop

in PL/pgSQL, Simple Loops

lower, String Functions and Operators, Range Functions and Operators

and locales, Behavior

lower_inc, Range Functions and Operators

lower_inf, Range Functions and Operators

lo_close, Closing a Large Object Descriptor

lo_compat_privileges configuration parameter, Previous PostgreSQL Versions

lo_creat, Creating a Large Object, Server-side Functions

lo_create, Creating a Large Object

lo_export, Exporting a Large Object, Server-side Functions

lo_from_bytea, Server-side Functions

lo_get, Server-side Functions

lo_import, Importing a Large Object, Server-side Functions

lo_import_with_oid, Importing a Large Object

lo_lseek, Seeking in a Large Object

lo_lseek64, Seeking in a Large Object

lo_open, Opening an Existing Large Object

lo_put, Server-side Functions

lo_read, Reading Data from a Large Object

lo_tell, Obtaining the Seek Position of a Large Object

lo_tell64, Obtaining the Seek Position of a Large Object

lo_truncate, Truncating a Large Object

lo_truncate64, Truncating a Large Object

lo_unlink, Removing a Large Object, Server-side Functions

lo_write, Writing Data to a Large Object

lpad, String Functions and Operators

lseg, Line Segments, Geometric Functions and Operators

ltree, ltree

ltree2text, Operators and Functions

ltrim, String Functions and Operators

M

MAC address

see macaddr

macaddr (data type), macaddr

macOS

installation on, macOS

magic block, Dynamic Loading

maintenance, Routine Database Maintenance Tasks

maintenance_work_mem configuration parameter, Memory

make, Requirements

make_date, Date/Time Functions and Operators

make_interval, Date/Time Functions and Operators

make_time, Date/Time Functions and Operators

make_timestamp, Date/Time Functions and Operators

make_timestamptz, Date/Time Functions and Operators

make_valid, Functions and Operators

MANPATH, Environment Variables

masklen, Network Address Functions and Operators

materialized view

implementation through rules, Materialized Views

materialized views, pg_matviews

max, Aggregate Functions

max_connections configuration parameter, Connection Settings

max_files_per_process configuration parameter, Kernel Resource Usage

max_function_args configuration parameter, Preset Options

max_identifier_length configuration parameter, Preset Options

max_index_keys configuration parameter, Preset Options

max_locks_per_transaction configuration parameter, Lock Management

max_parallel_workers_per_gather configuration parameter, Asynchronous Behavior

max_pred_locks_per_transaction configuration parameter, Lock Management

max_prepared_transactions configuration parameter, Memory

max_replication_slots configuration parameter, Sending Server(s)

max_stack_depth configuration parameter, Memory

max_standby_archive_delay configuration parameter, Standby Servers

max_standby_streaming_delay configuration parameter, Standby Servers

max_wal_senders configuration parameter, Sending Server(s)

max_wal_size configuration parameter, Checkpoints

max_worker_processes configuration parameter, Asynchronous Behavior

md5, String Functions and Operators, Binary String Functions and Operators, Password Authentication

median, Aggregate Expressions

see also percentile

memory context

in SPI, Memory Management

memory overcommit, Linux Memory Overcommit

metaphone, Metaphone

min, Aggregate Functions

MinGW

installation on, MinGW/Native Windows

min_parallel_relation_size configuration parameter, Planner Cost Constants

min_wal_size configuration parameter, Checkpoints

mod, Mathematical Functions and Operators

mode

statistical, Aggregate Functions

monitoring

database activity, Monitoring Database Activity

MOVE, MOVE

moving-aggregate mode, Moving-Aggregate Mode

Multiversion Concurrency Control, Introduction

MultiXactId, Multixacts and Wraparound

MVCC, Introduction

N

name

qualified, Creating a Schema
syntax of, Identifiers and Key Words
unqualified, The Schema Search Path

NaN

see not a number

natural join, Joined Tables

negation, Logical Operators

NetBSD

IPC configuration, Shared Memory and Semaphores
shared library, Compiling and Linking Dynamically-loaded Functions
start script, Starting the Database Server

netmask, Network Address Functions and Operators

network, Network Address Functions and Operators

data types, Network Address Types

Network Attached Storage (NAS)

see Network File Systems

Network File Systems, Use of Network File Systems

nextval, Sequence Manipulation Functions

NFS

see Network File Systems

nlevel, Operators and Functions

non-durable, Non-Durable Settings

nonblocking connection, Database Connection Control Functions, Asynchronous Command Processing

nonrepeatable read, Transaction Isolation

normal_rand, normal_rand

NOT (operator), Logical Operators

not a number

double precision, Floating-Point Types
numeric (data type), Arbitrary Precision Numbers

NOT IN, Subquery Expressions, Row and Array Comparisons

not-null constraint, Not-Null Constraints

notation

functions, Calling Functions

notice processing

in libpq, Notice Processing

notice processor, Notice Processing

notice receiver, Notice Processing

NOTIFY, NOTIFY

in libpq, Asynchronous Notification

NOTNULL, Comparison Functions and Operators

now, Date/Time Functions and Operators

npoints, Geometric Functions and Operators

nth_value, Window Functions

ntile, Window Functions

null value

with check constraints, Check Constraints
comparing, Comparison Functions and Operators
default value, Default Values
in DISTINCT, DISTINCT
in libpq, Retrieving Query Result Information
in PL/Perl, PL/Perl Functions and Arguments
in PL/Python, Null, None
with unique constraints, Unique Constraints

NULLIF, NULLIF

number

constant, Numeric Constants

numeric, Numeric Constants

numeric (data type), Arbitrary Precision Numbers

numnode, Text Search Functions and Operators, Manipulating Queries

num_nonnulls, Comparison Functions and Operators

num_nulls, Comparison Functions and Operators

NVL, COALESCE

O

object identifier

data type, Object Identifier Types

object-oriented database, Concepts

obj_description, System Information Functions

octet_length, String Functions and Operators, Binary String Functions and Operators

OFFSET, LIMIT and OFFSET

oid, Object Identifier Types

column, System Columns
in libpq, Retrieving Other Result Information

oid2name, oid2name

old_snapshot_threshold configuration parameter, Asynchronous Behavior

ON CONFLICT, INSERT

ONLY, The FROM Clause

OOM, Linux Memory Overcommit

opaque, Pseudo-Types

OpenBSD

IPC configuration, Shared Memory and Semaphores
shared library, Compiling and Linking Dynamically-loaded Functions
start script, Starting the Database Server

OpenSSL, Installation Procedure

see also SSL

operator, Functions and Operators

invocation, Operator Invocations
logical, Logical Operators
precedence, Operator Precedence
syntax, Operators
type resolution in an invocation, Operators
user-defined, User-defined Operators

operator class, Operator Classes and Operator Families, Index Methods and Operator Classes

operator family, Operator Classes and Operator Families, Operator Classes and Operator Families

operator_precedence_warning configuration parameter, Previous PostgreSQL Versions

OR (operator), Logical Operators

Oracle

porting from PL/SQL to PL/pgSQL, Porting from Oracle PL/SQL

ORDER BY, Querying a Table, Sorting Rows

and locales, Behavior

ordered-set aggregate, Aggregate Expressions

built-in, Aggregate Functions

ordering operator, System Dependencies on Operator Classes

ordinality, Set Returning Functions

OS X

IPC configuration, Shared Memory and Semaphores
shared library, Compiling and Linking Dynamically-loaded Functions

outer join, Joined Tables

output function, User-defined Types

OVER clause, Window Function Calls

overcommit, Linux Memory Overcommit

OVERLAPS, Date/Time Functions and Operators

overlay, String Functions and Operators, Binary String Functions and Operators

overloading

functions, Function Overloading
operators, User-defined Operators

owner, Privileges

P

pageinspect, pageinspect

page_header, Functions

palloc, Writing Code

PAM, Installation Procedure, PAM Authentication

parallel query, Parallel Query

parallel_setup_cost configuration parameter, Planner Cost Constants

parallel_tuple_cost configuration parameter, Planner Cost Constants

parameter

syntax, Positional Parameters

parenthesis, Value Expressions

parse_ident, String Functions and Operators

partitioning, Partitioning

password, Role Attributes

authentication, Password Authentication
of the superuser, Creating a Database Cluster

password file, The Password File

passwordcheck, passwordcheck

password_encryption configuration parameter, Security and Authentication

path, Geometric Functions and Operators, Environment Variables

for schemas, Statement Behavior

path (data type), Paths

pattern matching, Pattern Matching

patterns

in psql and pg_dump, Patterns

pclose, Geometric Functions and Operators

peer, Peer Authentication

percentile

continuous, Aggregate Functions
discrete, Aggregate Functions

percent_rank, Window Functions

hypothetical, Aggregate Functions

performance, Performance Tips

perl, Requirements, PL/Perl - Perl Procedural Language

permission

see privilege

pfree, Writing Code

PGAPPNAME, Environment Variables

pgbench, pgbench

PGcancel, Canceling Queries in Progress

PGCLIENTENCODING, Environment Variables

PGconn, Database Connection Control Functions

PGCONNECT_TIMEOUT, Environment Variables

pgcrypto, pgcrypto

PGDATA, Creating a Database Cluster

PGDATABASE, Environment Variables

PGDATESTYLE, Environment Variables

PGEventProc, Event Callback Procedure

PGGEQO, Environment Variables

PGGSSLIB, Environment Variables

PGHOST, Environment Variables

PGHOSTADDR, Environment Variables

PGKRBSRVNAME, Environment Variables

PGLOCALEDIR, Environment Variables

PGOPTIONS, Environment Variables

PGPASSFILE, Environment Variables

PGPASSWORD, Environment Variables

PGPORT, Environment Variables

pgp_armor_headers, pgp_armor_headers

pgp_key_id, pgp_key_id()

pgp_pub_decrypt, pgp_pub_decrypt()

pgp_pub_decrypt_bytea, pgp_pub_decrypt()

pgp_pub_encrypt, pgp_pub_encrypt()

pgp_pub_encrypt_bytea, pgp_pub_encrypt()

pgp_sym_decrypt, pgp_sym_decrypt()

pgp_sym_decrypt_bytea, pgp_sym_decrypt()

pgp_sym_encrypt, pgp_sym_encrypt()

pgp_sym_encrypt_bytea, pgp_sym_encrypt()

PGREQUIREPEER, Environment Variables

PGREQUIRESSL, Environment Variables

PGresult, Main Functions

pgrowlocks, pgrowlocks, Overview

PGSERVICE, Environment Variables

PGSERVICEFILE, Environment Variables

PGSSLCERT, Environment Variables

PGSSLCOMPRESSION, Environment Variables

PGSSLCRL, Environment Variables

PGSSLKEY, Environment Variables

PGSSLMODE, Environment Variables

PGSSLROOTCERT, Environment Variables

pgstatginindex, Functions

pgstatindex, Functions

pgstattuple, pgstattuple, Functions

pgstattuple_approx, Functions

PGSYSCONFDIR, Environment Variables

PGTZ, Environment Variables

PGUSER, Environment Variables

pgxs, Extension Building Infrastructure

pg_advisory_lock, Advisory Lock Functions

pg_advisory_lock_shared, Advisory Lock Functions

pg_advisory_unlock, Advisory Lock Functions

pg_advisory_unlock_all, Advisory Lock Functions

pg_advisory_unlock_shared, Advisory Lock Functions

pg_advisory_xact_lock, Advisory Lock Functions

pg_advisory_xact_lock_shared, Advisory Lock Functions

pg_aggregate, pg_aggregate

pg_am, pg_am

pg_amop, pg_amop

pg_amproc, pg_amproc

pg_archivecleanup, pg_archivecleanup

pg_attrdef, pg_attrdef

pg_attribute, pg_attribute

pg_authid, pg_authid

pg_auth_members, pg_auth_members

pg_available_extensions, pg_available_extensions

pg_available_extension_versions, pg_available_extension_versions

pg_backend_pid, System Information Functions

pg_backup_start_time, Backup Control Functions

pg_basebackup, pg_basebackup

pg_blocking_pids, System Information Functions

pg_buffercache, pg_buffercache

pg_buffercache_pages, pg_buffercache

pg_cancel_backend, Server Signaling Functions

pg_cast, pg_cast

pg_class, pg_class

pg_client_encoding, String Functions and Operators

pg_collation, pg_collation

pg_collation_is_visible, System Information Functions

pg_column_size, Database Object Management Functions

pg_config, pg_config, pg_config

with ecpg, Processing Embedded SQL Programs
with libpq, Building libpq Programs
with user-defined C functions, Writing Code

pg_conf_load_time, System Information Functions

pg_constraint, pg_constraint

pg_controldata, pg_controldata

pg_control_checkpoint, System Information Functions

pg_control_init, System Information Functions

pg_control_recovery, System Information Functions

pg_control_system, System Information Functions

pg_conversion, pg_conversion

pg_conversion_is_visible, System Information Functions

pg_create_logical_replication_slot, Replication Functions

pg_create_physical_replication_slot, Replication Functions

pg_create_restore_point, Backup Control Functions

pg_ctl, Creating a Database Cluster, Starting the Database Server, pg_ctl

pg_current_xlog_flush_location, Backup Control Functions

pg_current_xlog_insert_location, Backup Control Functions

pg_current_xlog_location, Backup Control Functions

pg_cursors, pg_cursors

pg_database, Template Databases, pg_database

pg_database_size, Database Object Management Functions

pg_db_role_setting, pg_db_role_setting

pg_ddl_command, Pseudo-Types

pg_default_acl, pg_default_acl

pg_depend, pg_depend

pg_describe_object, System Information Functions

pg_description, pg_description

pg_drop_replication_slot, Replication Functions

pg_dump, pg_dump

pg_dumpall, pg_dumpall

use during upgrade, Upgrading Data via pg_dumpall

pg_enum, pg_enum

pg_event_trigger, pg_event_trigger

pg_event_trigger_ddl_commands, Capturing Changes at Command End

pg_event_trigger_dropped_objects, Processing Objects Dropped by a DDL Command

pg_event_trigger_table_rewrite_oid, Handling a Table Rewrite Event

pg_event_trigger_table_rewrite_reason, Handling a Table Rewrite Event

pg_export_snapshot, Snapshot Synchronization Functions

pg_extension, pg_extension

pg_extension_config_dump, Extension Configuration Tables

pg_filenode_relation, Database Object Management Functions

pg_file_rename, adminpack

pg_file_settings, pg_file_settings

pg_file_unlink, adminpack

pg_file_write, adminpack

pg_foreign_data_wrapper, pg_foreign_data_wrapper

pg_foreign_server, pg_foreign_server

pg_foreign_table, pg_foreign_table

pg_freespace, Functions

pg_freespacemap, pg_freespacemap

pg_function_is_visible, System Information Functions

pg_get_constraintdef, System Information Functions

pg_get_expr, System Information Functions

pg_get_functiondef, System Information Functions

pg_get_function_arguments, System Information Functions

pg_get_function_identity_arguments, System Information Functions

pg_get_function_result, System Information Functions

pg_get_indexdef, System Information Functions

pg_get_keywords, System Information Functions

pg_get_object_address, System Information Functions

pg_get_ruledef, System Information Functions

pg_get_serial_sequence, System Information Functions

pg_get_triggerdef, System Information Functions

pg_get_userbyid, System Information Functions

pg_get_viewdef, System Information Functions

pg_group, pg_group

pg_has_role, System Information Functions

pg_hba.conf, The pg_hba.conf File

pg_ident.conf, User Name Maps

pg_identify_object, System Information Functions

pg_identify_object_as_address, System Information Functions

pg_index, pg_index

pg_indexam_has_property, System Information Functions

pg_indexes, pg_indexes

pg_indexes_size, Database Object Management Functions

pg_index_column_has_property, System Information Functions

pg_index_has_property, System Information Functions

pg_inherits, pg_inherits

pg_init_privs, pg_init_privs

pg_isready, pg_isready

pg_is_in_backup, Backup Control Functions

pg_is_in_recovery, Recovery Control Functions

pg_is_other_temp_schema, System Information Functions

pg_is_xlog_replay_paused, Recovery Control Functions

pg_language, pg_language

pg_largeobject, pg_largeobject

pg_largeobject_metadata, pg_largeobject_metadata

pg_last_committed_xact, System Information Functions

pg_last_xact_replay_timestamp, Recovery Control Functions

pg_last_xlog_receive_location, Recovery Control Functions

pg_last_xlog_replay_location, Recovery Control Functions

pg_listening_channels, System Information Functions

pg_locks, pg_locks

pg_logdir_ls, adminpack

pg_logical_emit_message, Replication Functions

pg_logical_slot_get_binary_changes, Replication Functions

pg_logical_slot_get_changes, Replication Functions

pg_logical_slot_peek_binary_changes, Replication Functions

pg_logical_slot_peek_changes, Replication Functions

pg_lsn, pg_lsn Type

pg_ls_dir, Generic File Access Functions

pg_matviews, pg_matviews

pg_my_temp_schema, System Information Functions

pg_namespace, pg_namespace

pg_notification_queue_usage, System Information Functions

pg_notify, pg_notify

pg_opclass, pg_opclass

pg_opclass_is_visible, System Information Functions

pg_operator, pg_operator

pg_operator_is_visible, System Information Functions

pg_opfamily, pg_opfamily

pg_opfamily_is_visible, System Information Functions

pg_options_to_table, System Information Functions

pg_pltemplate, pg_pltemplate

pg_policies, pg_policies

pg_policy, pg_policy

pg_postmaster_start_time, System Information Functions

pg_prepared_statements, pg_prepared_statements

pg_prepared_xacts, pg_prepared_xacts

pg_prewarm, pg_prewarm

pg_proc, pg_proc

pg_range, pg_range

pg_read_binary_file, Generic File Access Functions

pg_read_file, Generic File Access Functions

pg_receivexlog, pg_receivexlog

pg_recvlogical, pg_recvlogical

pg_relation_filenode, Database Object Management Functions

pg_relation_filepath, Database Object Management Functions

pg_relation_size, Database Object Management Functions

pg_reload_conf, Server Signaling Functions

pg_relpages, Functions

pg_replication_origin, pg_replication_origin

pg_replication_origin_advance, Replication Functions

pg_replication_origin_create, Replication Functions

pg_replication_origin_drop, Replication Functions

pg_replication_origin_oid, Replication Functions

pg_replication_origin_progress, Replication Functions

pg_replication_origin_session_is_setup, Replication Functions

pg_replication_origin_session_progress, Replication Functions

pg_replication_origin_session_reset, Replication Functions

pg_replication_origin_session_setup, Replication Functions

pg_replication_origin_status, pg_replication_origin_status

pg_replication_origin_xact_reset, Replication Functions

pg_replication_origin_xact_setup, Replication Functions

pg_replication_slots, pg_replication_slots

pg_resetxlog, pg_resetxlog

pg_restore, pg_restore

pg_rewind, pg_rewind

pg_rewrite, pg_rewrite

pg_roles, pg_roles

pg_rotate_logfile, Server Signaling Functions

pg_rules, pg_rules

pg_seclabel, pg_seclabel

pg_seclabels, pg_seclabels

pg_service.conf, The Connection Service File

pg_settings, pg_settings

pg_shadow, pg_shadow

pg_shdepend, pg_shdepend

pg_shdescription, pg_shdescription

pg_shseclabel, pg_shseclabel

pg_size_bytes, Database Object Management Functions

pg_size_pretty, Database Object Management Functions

pg_sleep, Delaying Execution

pg_sleep_for, Delaying Execution

pg_sleep_until, Delaying Execution

pg_standby, pg_standby

pg_start_backup, Backup Control Functions

pg_statio_all_indexes, Viewing Statistics

pg_statio_all_sequences, Viewing Statistics

pg_statio_all_tables, Viewing Statistics

pg_statio_sys_indexes, Viewing Statistics

pg_statio_sys_sequences, Viewing Statistics

pg_statio_sys_tables, Viewing Statistics

pg_statio_user_indexes, Viewing Statistics

pg_statio_user_sequences, Viewing Statistics

pg_statio_user_tables, Viewing Statistics

pg_statistic, Statistics Used by the Planner, pg_statistic

pg_stats, Statistics Used by the Planner, pg_stats

pg_stat_activity, Viewing Statistics

pg_stat_all_indexes, Viewing Statistics

pg_stat_all_tables, Viewing Statistics

pg_stat_archiver, Viewing Statistics

pg_stat_bgwriter, Viewing Statistics

pg_stat_clear_snapshot, Statistics Functions

pg_stat_database, Viewing Statistics

pg_stat_database_conflicts, Viewing Statistics

pg_stat_file, Generic File Access Functions

pg_stat_get_activity, Statistics Functions

pg_stat_get_snapshot_timestamp, Statistics Functions

pg_stat_progress_vacuum, Viewing Statistics

pg_stat_replication, Viewing Statistics

pg_stat_reset, Statistics Functions

pg_stat_reset_shared, Statistics Functions

pg_stat_reset_single_function_counters, Statistics Functions

pg_stat_reset_single_table_counters, Statistics Functions

pg_stat_ssl, Viewing Statistics

pg_stat_statements, pg_stat_statements

function, Functions

pg_stat_statements_reset, Functions

pg_stat_sys_indexes, Viewing Statistics

pg_stat_sys_tables, Viewing Statistics

pg_stat_user_functions, Viewing Statistics

pg_stat_user_indexes, Viewing Statistics

pg_stat_user_tables, Viewing Statistics

pg_stat_wal_receiver, Viewing Statistics

pg_stat_xact_all_tables, Viewing Statistics

pg_stat_xact_sys_tables, Viewing Statistics

pg_stat_xact_user_functions, Viewing Statistics

pg_stat_xact_user_tables, Viewing Statistics

pg_stop_backup, Backup Control Functions

pg_switch_xlog, Backup Control Functions

pg_tables, pg_tables

pg_tablespace, pg_tablespace

pg_tablespace_databases, System Information Functions

pg_tablespace_location, System Information Functions

pg_tablespace_size, Database Object Management Functions

pg_table_is_visible, System Information Functions

pg_table_size, Database Object Management Functions

pg_temp, Statement Behavior

securing functions, Writing SECURITY DEFINER Functions Safely

pg_terminate_backend, Server Signaling Functions

pg_test_fsync, pg_test_fsync

pg_test_timing, pg_test_timing

pg_timezone_abbrevs, pg_timezone_abbrevs

pg_timezone_names, pg_timezone_names

pg_total_relation_size, Database Object Management Functions

pg_transform, pg_transform

pg_trgm, pg_trgm

pg_trgm.similarity_threshold configuration parameter, GUC Parameters

pg_trgm.word_similarity_threshold configuration parameter, GUC Parameters

pg_trigger, pg_trigger

pg_try_advisory_lock, Advisory Lock Functions

pg_try_advisory_lock_shared, Advisory Lock Functions

pg_try_advisory_xact_lock, Advisory Lock Functions

pg_try_advisory_xact_lock_shared, Advisory Lock Functions

pg_ts_config, pg_ts_config

pg_ts_config_is_visible, System Information Functions

pg_ts_config_map, pg_ts_config_map

pg_ts_dict, pg_ts_dict

pg_ts_dict_is_visible, System Information Functions

pg_ts_parser, pg_ts_parser

pg_ts_parser_is_visible, System Information Functions

pg_ts_template, pg_ts_template

pg_ts_template_is_visible, System Information Functions

pg_type, pg_type

pg_typeof, System Information Functions

pg_type_is_visible, System Information Functions

pg_upgrade, pg_upgrade

pg_user, pg_user

pg_user_mapping, pg_user_mapping

pg_user_mappings, pg_user_mappings

pg_views, pg_views

pg_visibility, pg_visibility

pg_xact_commit_timestamp, System Information Functions

pg_xlogdump, pg_xlogdump

pg_xlogfile_name, Backup Control Functions

pg_xlogfile_name_offset, Backup Control Functions

pg_xlog_location_diff, Backup Control Functions

pg_xlog_replay_pause, Recovery Control Functions

pg_xlog_replay_resume, Recovery Control Functions

phantom read, Transaction Isolation

phraseto_tsquery, Text Search Functions and Operators, Parsing Queries

pi, Mathematical Functions and Operators

PIC, Compiling and Linking Dynamically-loaded Functions

PID

determining PID of server process

in libpq, Connection Status Functions

PITR, Backup and Restore

PITR standby, High Availability, Load Balancing, and Replication

pkg-config

with ecpg, Processing Embedded SQL Programs
with libpq, Building libpq Programs

PL/Perl, PL/Perl - Perl Procedural Language

PL/PerlU, Trusted and Untrusted PL/Perl

PL/pgSQL, PL/pgSQL - SQL Procedural Language

PL/Python, PL/Python - Python Procedural Language

PL/SQL (Oracle)

porting to PL/pgSQL, Porting from Oracle PL/SQL

PL/Tcl, PL/Tcl - Tcl Procedural Language

plainto_tsquery, Text Search Functions and Operators, Parsing Queries

plperl.on_init configuration parameter, Configuration

plperl.on_plperlu_init configuration parameter, Configuration

plperl.on_plperl_init configuration parameter, Configuration

plperl.use_strict configuration parameter, Configuration

plpgsql.check_asserts configuration parameter, Checking Assertions

plpgsql.variable_conflict configuration parameter, Variable Substitution

point, Points, Geometric Functions and Operators

point-in-time recovery, Backup and Restore

policy, Row Security Policies

polygon, Polygons, Geometric Functions and Operators

polymorphic function, Polymorphic Types

polymorphic type, Polymorphic Types

popen, Geometric Functions and Operators

populate_record, hstore Operators and Functions

port, Parameter Key Words

port configuration parameter, Connection Settings

position, String Functions and Operators, Binary String Functions and Operators

POSTGRES, The Berkeley POSTGRES Project, Architectural Fundamentals, Starting the Database Server, Creating a Database, postgres

postgres user, The PostgreSQL User Account

Postgres95, Postgres95

postgresql.auto.conf, Parameter Interaction via the Configuration File

postgresql.conf, Parameter Interaction via the Configuration File

postgres_fdw, postgres_fdw

postmaster, postmaster

post_auth_delay configuration parameter, Developer Options

power, Mathematical Functions and Operators

PQbackendPID, Connection Status Functions

PQbinaryTuples, Retrieving Query Result Information

with COPY, Functions Associated with the COPY Command

PQcancel, Canceling Queries in Progress

PQclear, Main Functions

PQclientEncoding, Control Functions

PQcmdStatus, Retrieving Other Result Information

PQcmdTuples, Retrieving Other Result Information

PQconndefaults, Database Connection Control Functions

PQconnectdb, Database Connection Control Functions

PQconnectdbParams, Database Connection Control Functions

PQconnectionNeedsPassword, Connection Status Functions

PQconnectionUsedPassword, Connection Status Functions

PQconnectPoll, Database Connection Control Functions

PQconnectStart, Database Connection Control Functions

PQconnectStartParams, Database Connection Control Functions

PQconninfo, Database Connection Control Functions

PQconninfoFree, Miscellaneous Functions

PQconninfoParse, Database Connection Control Functions

PQconsumeInput, Asynchronous Command Processing

PQcopyResult, Miscellaneous Functions

PQdb, Connection Status Functions

PQdescribePortal, Main Functions

PQdescribePrepared, Main Functions

PQencryptPassword, Miscellaneous Functions

PQendcopy, Obsolete Functions for COPY

PQerrorMessage, Connection Status Functions

PQescapeBytea, Escaping Strings for Inclusion in SQL Commands

PQescapeByteaConn, Escaping Strings for Inclusion in SQL Commands

PQescapeIdentifier, Escaping Strings for Inclusion in SQL Commands

PQescapeLiteral, Escaping Strings for Inclusion in SQL Commands

PQescapeString, Escaping Strings for Inclusion in SQL Commands

PQescapeStringConn, Escaping Strings for Inclusion in SQL Commands

PQexec, Main Functions

PQexecParams, Main Functions

PQexecPrepared, Main Functions

PQfformat, Retrieving Query Result Information

with COPY, Functions Associated with the COPY Command

PQfinish, Database Connection Control Functions

PQfireResultCreateEvents, Miscellaneous Functions

PQflush, Asynchronous Command Processing

PQfmod, Retrieving Query Result Information

PQfn, The Fast-Path Interface

PQfname, Retrieving Query Result Information

PQfnumber, Retrieving Query Result Information

PQfreeCancel, Canceling Queries in Progress

PQfreemem, Miscellaneous Functions

PQfsize, Retrieving Query Result Information

PQftable, Retrieving Query Result Information

PQftablecol, Retrieving Query Result Information

PQftype, Retrieving Query Result Information

PQgetCancel, Canceling Queries in Progress

PQgetCopyData, Functions for Receiving COPY Data

PQgetisnull, Retrieving Query Result Information

PQgetlength, Retrieving Query Result Information

PQgetline, Obsolete Functions for COPY

PQgetlineAsync, Obsolete Functions for COPY

PQgetResult, Asynchronous Command Processing

PQgetssl, Connection Status Functions

PQgetvalue, Retrieving Query Result Information

PQhost, Connection Status Functions

PQinitOpenSSL, SSL Library Initialization

PQinitSSL, SSL Library Initialization

PQinstanceData, Event Support Functions

PQisBusy, Asynchronous Command Processing

PQisnonblocking, Asynchronous Command Processing

PQisthreadsafe, Behavior in Threaded Programs

PQlibVersion, Miscellaneous Functions

see also PQserverVersion

PQmakeEmptyPGresult, Miscellaneous Functions

PQnfields, Retrieving Query Result Information

with COPY, Functions Associated with the COPY Command

PQnotifies, Asynchronous Notification

PQnparams, Retrieving Query Result Information

PQntuples, Retrieving Query Result Information

PQoidStatus, Retrieving Other Result Information

PQoidValue, Retrieving Other Result Information

PQoptions, Connection Status Functions

PQparameterStatus, Connection Status Functions

PQparamtype, Retrieving Query Result Information

PQpass, Connection Status Functions

PQping, Database Connection Control Functions

PQpingParams, Database Connection Control Functions

PQport, Connection Status Functions

PQprepare, Main Functions

PQprint, Retrieving Query Result Information

PQprotocolVersion, Connection Status Functions

PQputCopyData, Functions for Sending COPY Data

PQputCopyEnd, Functions for Sending COPY Data

PQputline, Obsolete Functions for COPY

PQputnbytes, Obsolete Functions for COPY

PQregisterEventProc, Event Support Functions

PQrequestCancel, Canceling Queries in Progress

PQreset, Database Connection Control Functions

PQresetPoll, Database Connection Control Functions

PQresetStart, Database Connection Control Functions

PQresStatus, Main Functions

PQresultAlloc, Miscellaneous Functions

PQresultErrorField, Main Functions

PQresultErrorMessage, Main Functions

PQresultInstanceData, Event Support Functions

PQresultSetInstanceData, Event Support Functions

PQresultStatus, Main Functions

PQresultVerboseErrorMessage, Main Functions

PQsendDescribePortal, Asynchronous Command Processing

PQsendDescribePrepared, Asynchronous Command Processing

PQsendPrepare, Asynchronous Command Processing

PQsendQuery, Asynchronous Command Processing

PQsendQueryParams, Asynchronous Command Processing

PQsendQueryPrepared, Asynchronous Command Processing

PQserverVersion, Connection Status Functions

PQsetClientEncoding, Control Functions

PQsetdb, Database Connection Control Functions

PQsetdbLogin, Database Connection Control Functions

PQsetErrorContextVisibility, Control Functions

PQsetErrorVerbosity, Control Functions

PQsetInstanceData, Event Support Functions

PQsetnonblocking, Asynchronous Command Processing

PQsetNoticeProcessor, Notice Processing

PQsetNoticeReceiver, Notice Processing

PQsetResultAttrs, Miscellaneous Functions

PQsetSingleRowMode, Retrieving Query Results Row-By-Row

PQsetvalue, Miscellaneous Functions

PQsocket, Connection Status Functions

PQsslAttribute, Connection Status Functions

PQsslAttributeNames, Connection Status Functions

PQsslInUse, Connection Status Functions

PQsslStruct, Connection Status Functions

PQstatus, Connection Status Functions

PQtrace, Control Functions

PQtransactionStatus, Connection Status Functions

PQtty, Connection Status Functions

PQunescapeBytea, Escaping Strings for Inclusion in SQL Commands

PQuntrace, Control Functions

PQuser, Connection Status Functions

predicate locking, Serializable Isolation Level

PREPARE, PREPARE

PREPARE TRANSACTION, PREPARE TRANSACTION

prepared statements

creating, PREPARE
executing, EXECUTE
removing, DEALLOCATE
showing the query plan, EXPLAIN

preparing a query

in PL/pgSQL, Plan Caching
in PL/Python, Database Access Functions
in PL/Tcl, Database Access from PL/Tcl

pre_auth_delay configuration parameter, Developer Options

primary key, Primary Keys

primary_conninfo recovery parameter, Standby Server Settings

primary_slot_name recovery parameter, Standby Server Settings

privilege, Privileges

querying, System Information Functions
with rules, Rules and Privileges
for schemas, Schemas and Privileges
with views, Rules and Privileges

procedural language, Procedural Languages

externally maintained, Procedural Languages
handler for, Writing A Procedural Language Handler

protocol

frontend-backend, Frontend/Backend Protocol

ps

to monitor activity, Standard Unix Tools

psql, Accessing a Database, psql

Python, PL/Python - Python Procedural Language

Q

qualified name, Creating a Schema

query, Querying a Table, Queries

query plan, Using EXPLAIN

query tree, The Query Tree

querytree, Text Search Functions and Operators, Manipulating Queries

quotation marks

and identifiers, Identifiers and Key Words
escaping, String Constants

quote_all_identifiers configuration parameter, Previous PostgreSQL Versions

quote_ident, String Functions and Operators

in PL/Perl, Utility Functions in PL/Perl
use in PL/pgSQL, Executing Dynamic Commands

quote_literal, String Functions and Operators

in PL/Perl, Utility Functions in PL/Perl
use in PL/pgSQL, Executing Dynamic Commands

quote_nullable, String Functions and Operators

in PL/Perl, Utility Functions in PL/Perl
use in PL/pgSQL, Executing Dynamic Commands

R

radians, Mathematical Functions and Operators

radius, Geometric Functions and Operators, RADIUS Authentication

RAISE

in PL/pgSQL, Reporting Errors and Messages

random, Mathematical Functions and Operators

random_page_cost configuration parameter, Planner Cost Constants

range table, The Query Tree

range type, Range Types

exclude, Constraints on Ranges
indexes on, Indexing

rank, Window Functions

hypothetical, Aggregate Functions

read committed, Read Committed Isolation Level

read-only transaction, Statement Behavior

setting, SET TRANSACTION
setting default, Statement Behavior

readline, Requirements

real, Floating-Point Types

REASSIGN OWNED, REASSIGN OWNED

record, Pseudo-Types

recovery.conf, Recovery Configuration

recovery_end_command recovery parameter, Archive Recovery Settings

recovery_min_apply_delay recovery parameter, Standby Server Settings

recovery_target recovery parameter, Recovery Target Settings

recovery_target_action recovery parameter, Recovery Target Settings

recovery_target_inclusive recovery parameter, Recovery Target Settings

recovery_target_name recovery parameter, Recovery Target Settings

recovery_target_time recovery parameter, Recovery Target Settings

recovery_target_timeline recovery parameter, Recovery Target Settings

recovery_target_xid recovery parameter, Recovery Target Settings

rectangle, Boxes

referential integrity, Foreign Keys, Foreign Keys

REFRESH MATERIALIZED VIEW, REFRESH MATERIALIZED VIEW

regclass, Object Identifier Types

regconfig, Object Identifier Types

regdictionary, Object Identifier Types

regexp_matches, String Functions and Operators, POSIX Regular Expressions

regexp_replace, String Functions and Operators, POSIX Regular Expressions

regexp_split_to_array, String Functions and Operators, POSIX Regular Expressions

regexp_split_to_table, String Functions and Operators, POSIX Regular Expressions

regoper, Object Identifier Types

regoperator, Object Identifier Types

regproc, Object Identifier Types

regprocedure, Object Identifier Types

regression intercept, Aggregate Functions

regression slope, Aggregate Functions

regression test, Installation Procedure

regression tests, Regression Tests

regr_avgx, Aggregate Functions

regr_avgy, Aggregate Functions

regr_count, Aggregate Functions

regr_intercept, Aggregate Functions

regr_r2, Aggregate Functions

regr_slope, Aggregate Functions

regr_sxx, Aggregate Functions

regr_sxy, Aggregate Functions

regr_syy, Aggregate Functions

regtype, Object Identifier Types

regular expression, SIMILAR TO Regular Expressions, POSIX Regular Expressions

see also pattern matching

regular expressions

and locales, Behavior

reindex, Routine Reindexing, REINDEX

reindexdb, reindexdb

relation, Concepts

relational database, Concepts

RELEASE SAVEPOINT, RELEASE SAVEPOINT

repeat, String Functions and Operators

repeatable read, Repeatable Read Isolation Level

replace, String Functions and Operators

replacement_sort_tuples configuration parameter, Memory

replication, High Availability, Load Balancing, and Replication

Replication Origins, Replication Progress Tracking

Replication Progress Tracking, Replication Progress Tracking

replication slot

logical replication, Replication Slots
streaming replication, Replication Slots

reporting errors

in PL/pgSQL, Reporting Errors and Messages

RESET, RESET

restartpoint, WAL Configuration

restart_after_crash configuration parameter, Error Handling

restore_command recovery parameter, Archive Recovery Settings

RESTRICT

with DROP, Dependency Tracking
foreign key action, Foreign Keys

RETURN NEXT

in PL/pgSQL, RETURN NEXT and RETURN QUERY

RETURN QUERY

in PL/pgSQL, RETURN NEXT and RETURN QUERY

RETURNING, Returning Data From Modified Rows

RETURNING INTO

in PL/pgSQL, Executing a Query with a Single-row Result

reverse, String Functions and Operators

REVOKE, Privileges, REVOKE

right, String Functions and Operators

right join, Joined Tables

role, Database Roles, Default Roles

applicable, applicable_roles
enabled, enabled_roles
membership in, Role Membership
privilege to create, Role Attributes
privilege to initiate replication, Role Attributes

ROLLBACK, ROLLBACK

psql, Variables

ROLLBACK PREPARED, ROLLBACK PREPARED

ROLLBACK TO SAVEPOINT, ROLLBACK TO SAVEPOINT

ROLLUP, GROUPING SETS, CUBE, and ROLLUP

round, Mathematical Functions and Operators

routine maintenance, Routine Database Maintenance Tasks

row, Concepts, Row Constructors, Table Basics

row estimation

planner, Row Estimation Examples

row type, Composite Types

constructor, Row Constructors

row-level security, Row Security Policies

row-wise comparison, Row and Array Comparisons

row_number, Window Functions

row_security configuration parameter, Statement Behavior

row_security_active, System Information Functions

row_to_json, JSON Functions and Operators

rpad, String Functions and Operators

rtrim, String Functions and Operators

rule, The Rule System

and materialized views, Materialized Views
and views, Views and the Rule System
for DELETE, Rules on INSERT, UPDATE, and DELETE
for INSERT, Rules on INSERT, UPDATE, and DELETE
for SELECT, How SELECT Rules Work
compared with triggers, Rules Versus Triggers
for UPDATE, Rules on INSERT, UPDATE, and DELETE

S

SAVEPOINT, SAVEPOINT

savepoints

defining, SAVEPOINT
releasing, RELEASE SAVEPOINT
rolling back, ROLLBACK TO SAVEPOINT

scalar

see expression

scale, Mathematical Functions and Operators

schema, Schemas, Overview

creating, Creating a Schema
current, The Schema Search Path, System Information Functions
public, The Public Schema
removing, Creating a Schema

SCO

installation on, SCO OpenServer and SCO UnixWare

SCO OpenServer

IPC configuration, Shared Memory and Semaphores

search path, The Schema Search Path

current, System Information Functions
object visibility, System Information Functions

search_path configuration parameter, The Schema Search Path, Statement Behavior

use in securing functions, Writing SECURITY DEFINER Functions Safely

SECURITY LABEL, SECURITY LABEL

sec_to_gc, Cube-based Earth Distances

seg, seg

segment_size configuration parameter, Preset Options

SELECT, Querying a Table, Queries, SELECT

select list, Select Lists

SELECT INTO, SELECT INTO

in PL/pgSQL, Executing a Query with a Single-row Result

semaphores, Shared Memory and Semaphores

sepgsql, sepgsql

sepgsql.debug_audit configuration parameter, GUC Parameters

sepgsql.permissive configuration parameter, GUC Parameters

sequence, Sequence Manipulation Functions

and serial type, Serial Types

sequential scan, Planner Method Configuration

seq_page_cost configuration parameter, Planner Cost Constants

serial, Serial Types

serial2, Serial Types

serial4, Serial Types

serial8, Serial Types

serializable, Serializable Isolation Level

Serializable Snapshot Isolation, Introduction

serialization anomaly, Transaction Isolation, Serializable Isolation Level

server log, Error Reporting and Logging

log file maintenance, Log File Maintenance

server spoofing, Preventing Server Spoofing

server_encoding configuration parameter, Preset Options

server_version configuration parameter, Preset Options

server_version_num configuration parameter, Preset Options

session_preload_libraries configuration parameter, Shared Library Preloading

session_replication_role configuration parameter, Statement Behavior

session_user, System Information Functions

SET, Configuration Settings Functions, SET

SET CONSTRAINTS, SET CONSTRAINTS

set difference, Combining Queries

set intersection, Combining Queries

set operation, Combining Queries

set returning functions

functions, Set Returning Functions

SET ROLE, SET ROLE

SET SESSION AUTHORIZATION, SET SESSION AUTHORIZATION

SET TRANSACTION, SET TRANSACTION

set union, Combining Queries

SET XML OPTION, Statement Behavior

setseed, Mathematical Functions and Operators

setval, Sequence Manipulation Functions

setweight, Text Search Functions and Operators, Manipulating Documents

setweight for specific lexeme(s), Text Search Functions and Operators

set_bit, Binary String Functions and Operators

set_byte, Binary String Functions and Operators

set_config, Configuration Settings Functions

set_limit, Functions and Operators

set_masklen, Network Address Functions and Operators

shared library, Shared Libraries, Compiling and Linking Dynamically-loaded Functions

shared memory, Shared Memory and Semaphores

shared_buffers configuration parameter, Memory

shared_preload_libraries, Shared Memory and LWLocks

shared_preload_libraries configuration parameter, Shared Library Preloading

shobj_description, System Information Functions

SHOW, Configuration Settings Functions, SHOW

show_limit, Functions and Operators

show_trgm, Functions and Operators

shutdown, Shutting Down the Server

SIGHUP, Parameter Interaction via the Configuration File, The pg_hba.conf File, User Name Maps

SIGINT, Shutting Down the Server

sign, Mathematical Functions and Operators

signal

backend processes, Server Signaling Functions

significant digits, Locale and Formatting

SIGQUIT, Shutting Down the Server

SIGTERM, Shutting Down the Server

similarity, Functions and Operators

sin, Mathematical Functions and Operators

sind, Mathematical Functions and Operators

single-user mode, Options for Single-User Mode

skeys, hstore Operators and Functions

sleep, Delaying Execution

slice, hstore Operators and Functions

sliced bread

see TOAST

smallint, Integer Types

smallserial, Serial Types

Solaris

installation on, Solaris
IPC configuration, Shared Memory and Semaphores
shared library, Compiling and Linking Dynamically-loaded Functions
start script, Starting the Database Server

SOME, Aggregate Functions, Subquery Expressions, Row and Array Comparisons

sort, intarray Functions and Operators

sorting, Sorting Rows

sort_asc, intarray Functions and Operators

sort_desc, intarray Functions and Operators

soundex, Soundex

SP-GiST

see index

SPI, Server Programming Interface

examples, spi

SPI_connect, SPI_connect

SPI_copytuple, SPI_copytuple

SPI_cursor_close, SPI_cursor_close

in PL/Perl, Database Access from PL/Perl

SPI_cursor_fetch, SPI_cursor_fetch

SPI_cursor_find, SPI_cursor_find

SPI_cursor_move, SPI_cursor_move

SPI_cursor_open, SPI_cursor_open

SPI_cursor_open_with_args, SPI_cursor_open_with_args

SPI_cursor_open_with_paramlist, SPI_cursor_open_with_paramlist

SPI_exec, SPI_exec

SPI_execp, SPI_execp

SPI_execute, SPI_execute

SPI_execute_plan, SPI_execute_plan

SPI_execute_plan_with_paramlist, SPI_execute_plan_with_paramlist

SPI_execute_with_args, SPI_execute_with_args

spi_exec_prepared

in PL/Perl, Database Access from PL/Perl

spi_exec_query

in PL/Perl, Database Access from PL/Perl

spi_fetchrow

in PL/Perl, Database Access from PL/Perl

SPI_finish, SPI_finish

SPI_fname, SPI_fname

SPI_fnumber, SPI_fnumber

SPI_freeplan, SPI_freeplan

in PL/Perl, Database Access from PL/Perl

SPI_freetuple, SPI_freetuple

SPI_freetuptable, SPI_freetuptable

SPI_getargcount, SPI_getargcount

SPI_getargtypeid, SPI_getargtypeid

SPI_getbinval, SPI_getbinval

SPI_getnspname, SPI_getnspname

SPI_getrelname, SPI_getrelname

SPI_gettype, SPI_gettype

SPI_gettypeid, SPI_gettypeid

SPI_getvalue, SPI_getvalue

SPI_is_cursor_plan, SPI_is_cursor_plan

SPI_keepplan, SPI_keepplan

spi_lastoid

in PL/Tcl, Database Access from PL/Tcl

SPI_modifytuple, SPI_modifytuple

SPI_palloc, SPI_palloc

SPI_pfree, SPI_pfree

SPI_pop, SPI_pop

SPI_prepare, SPI_prepare

in PL/Perl, Database Access from PL/Perl

SPI_prepare_cursor, SPI_prepare_cursor

SPI_prepare_params, SPI_prepare_params

SPI_push, SPI_push

spi_query

in PL/Perl, Database Access from PL/Perl

spi_query_prepared

in PL/Perl, Database Access from PL/Perl

SPI_repalloc, SPI_repalloc

SPI_returntuple, SPI_returntuple

SPI_saveplan, SPI_saveplan

SPI_scroll_cursor_fetch, SPI_scroll_cursor_fetch

SPI_scroll_cursor_move, SPI_scroll_cursor_move

split_part, String Functions and Operators

SQL/CLI, SQL Conformance

SQL/Foundation, SQL Conformance

SQL/Framework, SQL Conformance

SQL/JRT, SQL Conformance

SQL/MED, SQL Conformance

SQL/OLB, SQL Conformance

SQL/PSM, SQL Conformance

SQL/Schemata, SQL Conformance

SQL/XML, SQL Conformance

sql_inheritance configuration parameter, Previous PostgreSQL Versions

sqrt, Mathematical Functions and Operators

ssh, Secure TCP/IP Connections with SSH Tunnels

SSI, Introduction

SSL, Secure TCP/IP Connections with SSL, SSL Support

with libpq, Parameter Key Words, Connection Status Functions

ssl configuration parameter, Security and Authentication

sslinfo, sslinfo

ssl_ca_file configuration parameter, Security and Authentication

ssl_cert_file configuration parameter, Security and Authentication

ssl_cipher, Functions Provided

ssl_ciphers configuration parameter, Security and Authentication

ssl_client_cert_present, Functions Provided

ssl_client_dn, Functions Provided

ssl_client_dn_field, Functions Provided

ssl_client_serial, Functions Provided

ssl_crl_file configuration parameter, Security and Authentication

ssl_ecdh_curve configuration parameter, Security and Authentication

ssl_extension_info, Functions Provided

ssl_issuer_dn, Functions Provided

ssl_issuer_field, Functions Provided

ssl_is_used, Functions Provided

ssl_key_file configuration parameter, Security and Authentication

ssl_prefer_server_ciphers configuration parameter, Security and Authentication

ssl_version, Functions Provided

SSPI, SSPI Authentication

STABLE, Function Volatility Categories

standard deviation, Aggregate Functions

population, Aggregate Functions
sample, Aggregate Functions

standard_conforming_strings configuration parameter, Previous PostgreSQL Versions

standby server, High Availability, Load Balancing, and Replication

standby_mode recovery parameter, Standby Server Settings

START TRANSACTION, START TRANSACTION

START_REPLICATION, Streaming Replication Protocol

statement_timeout configuration parameter, Statement Behavior

statement_timestamp, Date/Time Functions and Operators

statistics, Aggregate Functions, The Statistics Collector

of the planner, Statistics Used by the Planner, Updating Planner Statistics

stats_temp_directory configuration parameter, Query and Index Statistics Collector

stddev, Aggregate Functions

stddev_pop, Aggregate Functions

stddev_samp, Aggregate Functions

STONITH, High Availability, Load Balancing, and Replication

storage parameters, Storage Parameters

Streaming Replication, High Availability, Load Balancing, and Replication

string

see character string

strings

backslash quotes, Previous PostgreSQL Versions
escape warning, Previous PostgreSQL Versions
standard conforming, Previous PostgreSQL Versions

string_agg, Aggregate Functions

string_to_array, Array Functions and Operators

strip, Text Search Functions and Operators, Manipulating Documents

strpos, String Functions and Operators

subarray, intarray Functions and Operators

subltree, Operators and Functions

subpath, Operators and Functions

subquery, Aggregate Functions, Scalar Subqueries, Subqueries, Subquery Expressions

subscript, Subscripts

substr, String Functions and Operators

substring, String Functions and Operators, Binary String Functions and Operators, SIMILAR TO Regular Expressions, POSIX Regular Expressions

sum, Aggregate Functions

superuser, Accessing a Database, Role Attributes

superuser_reserved_connections configuration parameter, Connection Settings

suppress_redundant_updates_trigger, Trigger Functions

svals, hstore Operators and Functions

synchronize_seqscans configuration parameter, Previous PostgreSQL Versions

synchronous commit, Asynchronous Commit

Synchronous Replication, High Availability, Load Balancing, and Replication

synchronous_commit configuration parameter, Settings

synchronous_standby_names configuration parameter, Master Server

syntax

SQL, SQL Syntax

syslog_facility configuration parameter, Where To Log

syslog_ident configuration parameter, Where To Log

syslog_sequence_numbers configuration parameter, Where To Log

syslog_split_messages configuration parameter, Where To Log

system catalog

schema, The System Catalog Schema

systemd, Installation Procedure, Starting the Database Server

RemoveIPC, systemd RemoveIPC

T

table, Concepts, Table Basics

creating, Table Basics
inheritance, Inheritance
modifying, Modifying Tables
partitioning, Partitioning
removing, Table Basics
renaming, Renaming a Table

TABLE command, SELECT

table expression, Table Expressions

table function, Table Functions

table sampling method, Writing A Table Sampling Method

tablefunc, tablefunc

tableoid, System Columns

TABLESAMPLE method, Writing A Table Sampling Method

tablespace, Tablespaces

default, Statement Behavior
temporary, Statement Behavior

tan, Mathematical Functions and Operators

tand, Mathematical Functions and Operators

target list, The Query Tree

Tcl, PL/Tcl - Tcl Procedural Language

tcn, tcn

tcp_keepalives_count configuration parameter, Connection Settings

tcp_keepalives_idle configuration parameter, Connection Settings

tcp_keepalives_interval configuration parameter, Connection Settings

template0, Template Databases

template1, Creating a Database, Template Databases

temp_buffers configuration parameter, Memory

temp_file_limit configuration parameter, Disk

temp_tablespaces configuration parameter, Statement Behavior

test, Regression Tests

test_decoding, test_decoding

text, Character Types, Network Address Functions and Operators

text search, Full Text Search

data types, Text Search Types
functions and operators, Text Search Types
indexes, GIN and GiST Index Types

text2ltree, Operators and Functions

threads

with libpq, Behavior in Threaded Programs

tid, Object Identifier Types

time, Date/Time Types, Times

constants, Special Values

current, Current Date/Time

output format, Date/Time Output

see also formatting

time span, Date/Time Types

time with time zone, Date/Time Types, Times

time without time zone, Date/Time Types, Times

time zone, Time Zones, Locale and Formatting

conversion, AT TIME ZONE
input abbreviations, Date/Time Configuration Files
POSIX-style specification, POSIX Time Zone Specifications

time zone data, Installation Procedure

time zone names, Locale and Formatting

timelines, Backup and Restore

TIMELINE_HISTORY, Streaming Replication Protocol

timeofday, Date/Time Functions and Operators

timeout

client authentication, Security and Authentication
deadlock, Lock Management

timestamp, Date/Time Types, Time Stamps

timestamp with time zone, Date/Time Types, Time Stamps

timestamp without time zone, Date/Time Types, Time Stamps

timestamptz, Date/Time Types

TimeZone configuration parameter, Locale and Formatting

timezone_abbreviations configuration parameter, Locale and Formatting

TOAST, TOAST

and user-defined types, TOAST Considerations
per-column storage settings, Description
versus large objects, Introduction

token, Lexical Structure

to_ascii, String Functions and Operators

to_char, Data Type Formatting Functions

and locales, Behavior

to_date, Data Type Formatting Functions

to_hex, String Functions and Operators

to_json, JSON Functions and Operators

to_jsonb, JSON Functions and Operators

to_number, Data Type Formatting Functions

to_regclass, System Information Functions

to_regnamespace, System Information Functions

to_regoper, System Information Functions

to_regoperator, System Information Functions

to_regproc, System Information Functions

to_regprocedure, System Information Functions

to_regrole, System Information Functions

to_regtype, System Information Functions

to_timestamp, Data Type Formatting Functions, Date/Time Functions and Operators

to_tsquery, Text Search Functions and Operators, Parsing Queries

to_tsvector, Text Search Functions and Operators, Parsing Documents

trace_locks configuration parameter, Developer Options

trace_lock_oidmin configuration parameter, Developer Options

trace_lock_table configuration parameter, Developer Options

trace_lwlocks configuration parameter, Developer Options

trace_notify configuration parameter, Developer Options

trace_recovery_messages configuration parameter, Developer Options

trace_sort configuration parameter, Developer Options

trace_userlocks configuration parameter, Developer Options

track_activities configuration parameter, Query and Index Statistics Collector

track_activity_query_size configuration parameter, Query and Index Statistics Collector

track_commit_timestamp configuration parameter, Sending Server(s)

track_counts configuration parameter, Query and Index Statistics Collector

track_functions configuration parameter, Query and Index Statistics Collector

track_io_timing configuration parameter, Query and Index Statistics Collector

transaction, Transactions

transaction ID

wraparound, Preventing Transaction ID Wraparound Failures

transaction isolation, Transaction Isolation

transaction isolation level, Transaction Isolation, Statement Behavior

read committed, Read Committed Isolation Level
repeatable read, Repeatable Read Isolation Level
serializable, Serializable Isolation Level
setting, SET TRANSACTION
setting default, Statement Behavior

transaction log

see WAL

transaction_deferrable configuration parameter, Statement Behavior

transaction_isolation configuration parameter, Statement Behavior

transaction_read_only configuration parameter, Statement Behavior

transaction_timestamp, Date/Time Functions and Operators

transform_null_equals configuration parameter, Platform and Client Compatibility

translate, String Functions and Operators

trigger, Pseudo-Types, Triggers

arguments for trigger functions, Overview of Trigger Behavior
for updating a derived tsvector column, Triggers for Automatic Updates
in C, Writing Trigger Functions in C
in PL/pgSQL, Trigger Procedures
in PL/Python, Trigger Functions
in PL/Tcl, Trigger Procedures in PL/Tcl
compared with rules, Rules Versus Triggers

triggered_change_notification, tcn

trigger_file recovery parameter, Standby Server Settings

trim, String Functions and Operators, Binary String Functions and Operators

true, Boolean Type

trunc, Mathematical Functions and Operators, Network Address Functions and Operators

TRUNCATE, TRUNCATE

trusted

PL/Perl, Trusted and Untrusted PL/Perl

tsearch2, tsearch2

tsm_handler, Pseudo-Types

tsm_system_rows, tsm_system_rows

tsm_system_time, tsm_system_time

tsquery (data type), tsquery

tsquery_phrase, Text Search Functions and Operators, Manipulating Queries

tsvector (data type), tsvector

tsvector concatenation, Manipulating Documents

tsvector_to_array, Text Search Functions and Operators

tsvector_update_trigger, Text Search Functions and Operators

tsvector_update_trigger_column, Text Search Functions and Operators

ts_debug, Text Search Functions and Operators, Configuration Testing

ts_delete, Text Search Functions and Operators

ts_filter, Text Search Functions and Operators

ts_headline, Text Search Functions and Operators, Highlighting Results

ts_lexize, Text Search Functions and Operators, Dictionary Testing

ts_parse, Text Search Functions and Operators, Parser Testing

ts_rank, Text Search Functions and Operators, Ranking Search Results

ts_rank_cd, Text Search Functions and Operators, Ranking Search Results

ts_rewrite, Text Search Functions and Operators, Query Rewriting

ts_stat, Text Search Functions and Operators, Gathering Document Statistics

ts_token_type, Text Search Functions and Operators, Parser Testing

tuple_data_split, Functions

txid_current, System Information Functions

txid_current_snapshot, System Information Functions

txid_snapshot_xip, System Information Functions

txid_snapshot_xmax, System Information Functions

txid_snapshot_xmin, System Information Functions

txid_visible_in_snapshot, System Information Functions

type

see data type
polymorphic, Polymorphic Types

type cast, Numeric Constants, Type Casts

U

UESCAPE, Identifiers and Key Words, String Constants with Unicode Escapes

unaccent, unaccent, Functions

Unicode escape

in identifiers, Identifiers and Key Words
in string constants, String Constants with Unicode Escapes

UNION, Combining Queries

determination of result type, UNION, CASE, and Related Constructs

uniq, intarray Functions and Operators

unique constraint, Unique Constraints

Unix domain socket, Parameter Key Words

UnixWare

installation on, SCO OpenServer and SCO UnixWare
IPC configuration, Shared Memory and Semaphores
shared library, Compiling and Linking Dynamically-loaded Functions

unix_socket_directories configuration parameter, Connection Settings

unix_socket_group configuration parameter, Connection Settings

unix_socket_permissions configuration parameter, Connection Settings

UNLISTEN, UNLISTEN

unnest, Array Functions and Operators

for tsvector, Text Search Functions and Operators

unqualified name, The Schema Search Path

updatable views, Updatable Views

UPDATE, Updates, Updating Data, UPDATE

RETURNING, Returning Data From Modified Rows

update_process_title configuration parameter, Process Title

updating, Updating Data

upgrading, Upgrading a PostgreSQL Cluster

upper, String Functions and Operators, Range Functions and Operators

and locales, Behavior

upper_inc, Range Functions and Operators

upper_inf, Range Functions and Operators

UPSERT, INSERT

URI, Connection Strings

user, System Information Functions, Database Roles

current, System Information Functions

user mapping, Foreign Data

User name maps, User Name Maps

UUID, UUID Type, Installation Procedure

uuid-ossp, uuid-ossp

uuid_generate_v1, uuid-ossp Functions

uuid_generate_v1mc, uuid-ossp Functions

uuid_generate_v3, uuid-ossp Functions

V

vacuum, Routine Vacuuming, VACUUM

vacuumdb, vacuumdb

vacuumlo, vacuumlo

vacuum_cost_delay configuration parameter, Cost-based Vacuum Delay

vacuum_cost_limit configuration parameter, Cost-based Vacuum Delay

vacuum_cost_page_dirty configuration parameter, Cost-based Vacuum Delay

vacuum_cost_page_hit configuration parameter, Cost-based Vacuum Delay

vacuum_cost_page_miss configuration parameter, Cost-based Vacuum Delay

vacuum_defer_cleanup_age configuration parameter, Master Server

vacuum_freeze_min_age configuration parameter, Statement Behavior

vacuum_freeze_table_age configuration parameter, Statement Behavior

vacuum_multixact_freeze_min_age configuration parameter, Statement Behavior

vacuum_multixact_freeze_table_age configuration parameter, Statement Behavior

value expression, Value Expressions

VALUES, VALUES Lists, VALUES

determination of result type, UNION, CASE, and Related Constructs

varchar, Character Types

variadic function, SQL Functions with Variable Numbers of Arguments

variance, Aggregate Functions

population, Aggregate Functions
sample, Aggregate Functions

var_pop, Aggregate Functions

var_samp, Aggregate Functions

version, Accessing a Database, System Information Functions

compatibility, Upgrading a PostgreSQL Cluster

view, Views

implementation through rules, Views and the Rule System
materialized, Materialized Views
updating, Cooperation with Views

Visibility Map, Visibility Map

VM

see Visibility Map

void, Pseudo-Types

VOLATILE, Function Volatility Categories

volatility

functions, Function Volatility Categories

VPATH, Installation Procedure, Extension Building Infrastructure

W

WAL, Reliability and the Write-Ahead Log

wal_block_size configuration parameter, Preset Options

wal_buffers configuration parameter, Settings

wal_compression configuration parameter, Settings

wal_debug configuration parameter, Developer Options

wal_keep_segments configuration parameter, Sending Server(s)

wal_level configuration parameter, Settings

wal_log_hints configuration parameter, Settings

wal_receiver_status_interval configuration parameter, Standby Servers

wal_receiver_timeout configuration parameter, Standby Servers

wal_retrieve_retry_interval configuration parameter, Standby Servers

wal_segment_size configuration parameter, Preset Options

wal_sender_timeout configuration parameter, Sending Server(s)

wal_sync_method configuration parameter, Settings

wal_writer_delay configuration parameter, Settings

wal_writer_flush_after configuration parameter, Settings

warm standby, High Availability, Load Balancing, and Replication

WHERE, The WHERE Clause

where to log, Where To Log

WHILE

in PL/pgSQL, WHILE

width, Geometric Functions and Operators

width_bucket, Mathematical Functions and Operators

window function, Window Functions

built-in, Window Functions
invocation, Window Function Calls
order of execution, Window Function Processing

WITH

in SELECT, WITH Queries (Common Table Expressions), SELECT

WITH CHECK OPTION, CREATE VIEW

WITHIN GROUP, Aggregate Expressions

witness server, High Availability, Load Balancing, and Replication

word_similarity, Functions and Operators

work_mem configuration parameter, Memory

wraparound

of multixact IDs, Multixacts and Wraparound
of transaction IDs, Preventing Transaction ID Wraparound Failures

X

xid, Object Identifier Types
xmax, System Columns
xmin, System Columns
XML, XML Type
XML export, Mapping Tables to XML
XML option, Creating XML Values, Statement Behavior
xml2, xml2
xmlagg, xmlagg, Aggregate Functions
xmlbinary configuration parameter, Statement Behavior
xmlcomment, xmlcomment
xmlconcat, xmlconcat
xmlelement, xmlelement
XMLEXISTS, XMLEXISTS
xmlforest, xmlforest
xmloption configuration parameter, Statement Behavior
xmlparse, Creating XML Values
xmlpi, xmlpi
xmlroot, xmlroot
xmlserialize, Creating XML Values
xml_is_well_formed, xml_is_well_formed
xml_is_well_formed_content, xml_is_well_formed
xml_is_well_formed_document, xml_is_well_formed
XPath, Processing XML
xpath_exists, Processing XML
xpath_table, xpath_table
xslt_process, xslt_process

Y

yacc, Requirements

Z

zero_damaged_pages configuration parameter, Developer Options
zlib, Requirements, Installation Procedure

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