diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml
index f517a7d4af..4d037b590e 100644
--- a/doc/src/sgml/catalogs.sgml
+++ b/doc/src/sgml/catalogs.sgml
@@ -12877,6 +12877,36 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
non-null elements. (Null for scalar types.)
+
+
+
+ range_length_histogram anyarray
+
+
+ A histogram of lengths of non-empty, non-null ranges.
+ (Null for non-range types.)
+
+
+
+
+
+ range_length_empty_frac float4
+
+
+ A fraction of empty ranges. (Null for non-range types.)
+
+
+
+
+
+ range_bounds_histogram anyarray
+
+
+ Histograms of lower and upper bounds of non-empty, non-null ranges,
+ combined into a single array of range values.
+ (Null for non-range types.)
+
+
diff --git a/src/backend/catalog/system_views.sql b/src/backend/catalog/system_views.sql
index 999d984068..93fadfff15 100644
--- a/src/backend/catalog/system_views.sql
+++ b/src/backend/catalog/system_views.sql
@@ -243,7 +243,28 @@ CREATE VIEW pg_stats WITH (security_barrier) AS
WHEN stakind3 = 5 THEN stanumbers3
WHEN stakind4 = 5 THEN stanumbers4
WHEN stakind5 = 5 THEN stanumbers5
- END AS elem_count_histogram
+ END AS elem_count_histogram,
+ CASE
+ WHEN stakind1 = 6 THEN stavalues1
+ WHEN stakind2 = 6 THEN stavalues2
+ WHEN stakind3 = 6 THEN stavalues3
+ WHEN stakind4 = 6 THEN stavalues4
+ WHEN stakind5 = 6 THEN stavalues5
+ END AS range_length_histogram,
+ CASE
+ WHEN stakind1 = 6 THEN stanumbers1[1]
+ WHEN stakind2 = 6 THEN stanumbers2[1]
+ WHEN stakind3 = 6 THEN stanumbers3[1]
+ WHEN stakind4 = 6 THEN stanumbers4[1]
+ WHEN stakind5 = 6 THEN stanumbers5[1]
+ END AS range_length_empty_frac,
+ CASE
+ WHEN stakind1 = 7 THEN stavalues1
+ WHEN stakind2 = 7 THEN stavalues2
+ WHEN stakind3 = 7 THEN stavalues3
+ WHEN stakind4 = 7 THEN stavalues4
+ WHEN stakind5 = 7 THEN stavalues5
+ END AS range_bounds_histogram
FROM pg_statistic s JOIN pg_class c ON (c.oid = s.starelid)
JOIN pg_attribute a ON (c.oid = attrelid AND attnum = s.staattnum)
LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)
diff --git a/src/test/regress/expected/rules.out b/src/test/regress/expected/rules.out
index e5ab11275d..780aefdc26 100644
--- a/src/test/regress/expected/rules.out
+++ b/src/test/regress/expected/rules.out
@@ -2409,7 +2409,31 @@ pg_stats| SELECT n.nspname AS schemaname,
WHEN (s.stakind4 = 5) THEN s.stanumbers4
WHEN (s.stakind5 = 5) THEN s.stanumbers5
ELSE NULL::real[]
- END AS elem_count_histogram
+ END AS elem_count_histogram,
+ CASE
+ WHEN (s.stakind1 = 6) THEN s.stavalues1
+ WHEN (s.stakind2 = 6) THEN s.stavalues2
+ WHEN (s.stakind3 = 6) THEN s.stavalues3
+ WHEN (s.stakind4 = 6) THEN s.stavalues4
+ WHEN (s.stakind5 = 6) THEN s.stavalues5
+ ELSE NULL::anyarray
+ END AS range_length_histogram,
+ CASE
+ WHEN (s.stakind1 = 6) THEN s.stanumbers1[1]
+ WHEN (s.stakind2 = 6) THEN s.stanumbers2[1]
+ WHEN (s.stakind3 = 6) THEN s.stanumbers3[1]
+ WHEN (s.stakind4 = 6) THEN s.stanumbers4[1]
+ WHEN (s.stakind5 = 6) THEN s.stanumbers5[1]
+ ELSE NULL::real
+ END AS range_length_empty_frac,
+ CASE
+ WHEN (s.stakind1 = 7) THEN s.stavalues1
+ WHEN (s.stakind2 = 7) THEN s.stavalues2
+ WHEN (s.stakind3 = 7) THEN s.stavalues3
+ WHEN (s.stakind4 = 7) THEN s.stavalues4
+ WHEN (s.stakind5 = 7) THEN s.stavalues5
+ ELSE NULL::anyarray
+ END AS range_bounds_histogram
FROM (((pg_statistic s
JOIN pg_class c ON ((c.oid = s.starelid)))
JOIN pg_attribute a ON (((c.oid = a.attrelid) AND (a.attnum = s.staattnum))))