diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index e09e289a43..0cbdf63632 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -19735,6 +19735,20 @@ SELECT NULLIF(value, '(none)') ...
+
+
+
+ any_value
+
+ any_value ( anyelement )
+ same as input type
+
+
+ Returns an arbitrary value from the non-null input values.
+
+ Yes
+
+
diff --git a/src/backend/catalog/sql_features.txt b/src/backend/catalog/sql_features.txt
index 3766762ae3..75a09f14e0 100644
--- a/src/backend/catalog/sql_features.txt
+++ b/src/backend/catalog/sql_features.txt
@@ -520,6 +520,7 @@ T622 Trigonometric functions YES
T623 General logarithm functions YES
T624 Common logarithm functions YES
T625 LISTAGG NO
+T626 ANY_VALUE YES SQL:202x draft
T631 IN predicate with one list element YES
T641 Multiple column assignment NO only some syntax variants supported
T651 SQL-schema statements in SQL routines YES
diff --git a/src/backend/utils/adt/misc.c b/src/backend/utils/adt/misc.c
index 220ddb8c01..f95256efd3 100644
--- a/src/backend/utils/adt/misc.c
+++ b/src/backend/utils/adt/misc.c
@@ -1041,3 +1041,12 @@ pg_get_replica_identity_index(PG_FUNCTION_ARGS)
else
PG_RETURN_NULL();
}
+
+/*
+ * Transition function for the ANY_VALUE aggregate
+ */
+Datum
+any_value_transfn(PG_FUNCTION_ARGS)
+{
+ PG_RETURN_DATUM(PG_GETARG_DATUM(0));
+}
diff --git a/src/include/catalog/catversion.h b/src/include/catalog/catversion.h
index 9c298cb125..23a446fb11 100644
--- a/src/include/catalog/catversion.h
+++ b/src/include/catalog/catversion.h
@@ -57,6 +57,6 @@
*/
/* yyyymmddN */
-#define CATALOG_VERSION_NO 202302111
+#define CATALOG_VERSION_NO 202302221
#endif
diff --git a/src/include/catalog/pg_aggregate.dat b/src/include/catalog/pg_aggregate.dat
index 4fea7d8dc1..d7895cd676 100644
--- a/src/include/catalog/pg_aggregate.dat
+++ b/src/include/catalog/pg_aggregate.dat
@@ -634,4 +634,8 @@
aggfinalfn => 'dense_rank_final', aggfinalextra => 't', aggfinalmodify => 'w',
aggmfinalmodify => 'w', aggtranstype => 'internal' },
+# any_value
+{ aggfnoid => 'any_value(anyelement)', aggtransfn => 'any_value_transfn',
+ aggcombinefn => 'any_value_transfn', aggtranstype => 'anyelement' },
+
]
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 66b73c3900..e2a7642a2b 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -11927,4 +11927,12 @@
prorettype => 'bytea', proargtypes => 'pg_brin_minmax_multi_summary',
prosrc => 'brin_minmax_multi_summary_send' },
+{ oid => '8981', descr => 'arbitrary value from among input values',
+ proname => 'any_value', prokind => 'a', proisstrict => 'f',
+ prorettype => 'anyelement', proargtypes => 'anyelement',
+ prosrc => 'aggregate_dummy' },
+{ oid => '8982', descr => 'aggregate transition function',
+ proname => 'any_value_transfn', prorettype => 'anyelement',
+ proargtypes => 'anyelement anyelement', prosrc => 'any_value_transfn' },
+
]
diff --git a/src/test/regress/expected/aggregates.out b/src/test/regress/expected/aggregates.out
index 52046c33dc..e074cb71bf 100644
--- a/src/test/regress/expected/aggregates.out
+++ b/src/test/regress/expected/aggregates.out
@@ -25,6 +25,30 @@ SELECT avg(a) AS avg_32 FROM aggtest WHERE a < 100;
32.6666666666666667
(1 row)
+SELECT any_value(v) FROM (VALUES (1), (2), (3)) AS v (v);
+ any_value
+-----------
+ 1
+(1 row)
+
+SELECT any_value(v) FROM (VALUES (NULL)) AS v (v);
+ any_value
+-----------
+
+(1 row)
+
+SELECT any_value(v) FROM (VALUES (NULL), (1), (2)) AS v (v);
+ any_value
+-----------
+ 1
+(1 row)
+
+SELECT any_value(v) FROM (VALUES (array['hello', 'world'])) AS v (v);
+ any_value
+---------------
+ {hello,world}
+(1 row)
+
-- In 7.1, avg(float4) is computed using float8 arithmetic.
-- Round the result to 3 digits to avoid platform-specific results.
SELECT avg(b)::numeric(10,3) AS avg_107_943 FROM aggtest;
@@ -2033,6 +2057,12 @@ from (values ('a', 'b')) AS v(foo,bar);
a
(1 row)
+select any_value(v) filter (where v > 2) from (values (1), (2), (3)) as v (v);
+ any_value
+-----------
+ 3
+(1 row)
+
-- outer reference in FILTER (PostgreSQL extension)
select (select count(*)
from (values (1)) t0(inner_c))
diff --git a/src/test/regress/sql/aggregates.sql b/src/test/regress/sql/aggregates.sql
index e7970983c3..616ef38c25 100644
--- a/src/test/regress/sql/aggregates.sql
+++ b/src/test/regress/sql/aggregates.sql
@@ -24,6 +24,11 @@ SELECT avg(four) AS avg_1 FROM onek;
SELECT avg(a) AS avg_32 FROM aggtest WHERE a < 100;
+SELECT any_value(v) FROM (VALUES (1), (2), (3)) AS v (v);
+SELECT any_value(v) FROM (VALUES (NULL)) AS v (v);
+SELECT any_value(v) FROM (VALUES (NULL), (1), (2)) AS v (v);
+SELECT any_value(v) FROM (VALUES (array['hello', 'world'])) AS v (v);
+
-- In 7.1, avg(float4) is computed using float8 arithmetic.
-- Round the result to 3 digits to avoid platform-specific results.
@@ -810,6 +815,8 @@ having exists (select 1 from onek b where sum(distinct a.four) = b.four);
select max(foo COLLATE "C") filter (where (bar collate "POSIX") > '0')
from (values ('a', 'b')) AS v(foo,bar);
+select any_value(v) filter (where v > 2) from (values (1), (2), (3)) as v (v);
+
-- outer reference in FILTER (PostgreSQL extension)
select (select count(*)
from (values (1)) t0(inner_c))