diff options
| author | Michael Paquier | 2019-07-05 03:21:11 +0000 |
|---|---|---|
| committer | Michael Paquier | 2019-07-05 03:21:11 +0000 |
| commit | 313f87a17155a6dbd27a3ce687cf59bd171fe75e (patch) | |
| tree | 1130b22d811c49539eeb09ba8704c678f1a99938 /src/test | |
| parent | 8a810a177c80909b71e9fb3760a1d56ed988638a (diff) | |
Add min() and max() aggregates for pg_lsn
This is useful for monitoring, when it comes for example to calculations
of WAL retention with replication slots and delays with a set of
standbys.
Bump catalog version.
Author: FabrÃzio de Royes Mello
Reviewed-by: Surafel Temesgen
Discussion: https://postgr.es/m/CAFcNs+oc8ZoHhowA4rR1GGCgG8QNgK_TOwPRVYQo5rYy8_PXzA@mail.gmail.com
Diffstat (limited to 'src/test')
| -rw-r--r-- | src/test/regress/expected/pg_lsn.out | 7 | ||||
| -rw-r--r-- | src/test/regress/sql/pg_lsn.sql | 4 |
2 files changed, 11 insertions, 0 deletions
diff --git a/src/test/regress/expected/pg_lsn.out b/src/test/regress/expected/pg_lsn.out index 2854cfd7b94..64d41dfdad2 100644 --- a/src/test/regress/expected/pg_lsn.out +++ b/src/test/regress/expected/pg_lsn.out @@ -26,6 +26,13 @@ INSERT INTO PG_LSN_TBL VALUES ('/ABCD'); ERROR: invalid input syntax for type pg_lsn: "/ABCD" LINE 1: INSERT INTO PG_LSN_TBL VALUES ('/ABCD'); ^ +-- Min/Max aggregation +SELECT MIN(f1), MAX(f1) FROM PG_LSN_TBL; + min | max +-----+------------------- + 0/0 | FFFFFFFF/FFFFFFFF +(1 row) + DROP TABLE PG_LSN_TBL; -- Operators SELECT '0/16AE7F8' = '0/16AE7F8'::pg_lsn; diff --git a/src/test/regress/sql/pg_lsn.sql b/src/test/regress/sql/pg_lsn.sql index 746f720d690..2c143c82ffe 100644 --- a/src/test/regress/sql/pg_lsn.sql +++ b/src/test/regress/sql/pg_lsn.sql @@ -14,6 +14,10 @@ INSERT INTO PG_LSN_TBL VALUES ('-1/0'); INSERT INTO PG_LSN_TBL VALUES (' 0/12345678'); INSERT INTO PG_LSN_TBL VALUES ('ABCD/'); INSERT INTO PG_LSN_TBL VALUES ('/ABCD'); + +-- Min/Max aggregation +SELECT MIN(f1), MAX(f1) FROM PG_LSN_TBL; + DROP TABLE PG_LSN_TBL; -- Operators |