pgsql: Implement ANY_VALUE aggregate

Started by Peter Eisentrautover 3 years ago1 messagescomitters

peter_e@gmx.net

over 3 years ago

Implement ANY_VALUE aggregate

SQL:2023 defines an ANY_VALUE aggregate whose purpose is to emit an
implementation-dependent (i.e. non-deterministic) value from the
aggregated rows.

Author: Vik Fearing <vik@postgresfriends.org>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Reviewed-by: David Rowley <dgrowleyml@gmail.com>
Discussion: /messages/by-id/5cff866c-10a8-d2df-32cb-e9072e6b04a2@postgresfriends.org

Branch
------
master

Details
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https://git.postgresql.org/pg/commitdiff/2ddab010c2777c6a965cea82dc1b809ddc33ecc1

Modified Files
--------------
doc/src/sgml/func.sgml | 14 ++++++++++++++
src/backend/catalog/sql_features.txt | 1 +
src/backend/utils/adt/misc.c | 9 +++++++++
src/include/catalog/catversion.h | 2 +-
src/include/catalog/pg_aggregate.dat | 4 ++++
src/include/catalog/pg_proc.dat | 8 ++++++++
src/test/regress/expected/aggregates.out | 30 ++++++++++++++++++++++++++++++
src/test/regress/sql/aggregates.sql | 7 +++++++
8 files changed, 74 insertions(+), 1 deletion(-)