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| author | Michael Paquier <michael@paquier.xyz> | 2024-11-01 10:32:19 +0900 |
|---|---|---|
| committer | Michael Paquier <michael@paquier.xyz> | 2024-11-01 10:32:19 +0900 |
| commit | 49d6c7d8dabad8c59ba21afe72ff32e79f822291 (patch) | |
| tree | 9e73aceb9839531075f21edf08802ace845416e3 /src/backend/access/transam/xlogwait.c | |
| parent | 2d8bff603c9ee7b284b85016fd1a8849ee36368d (diff) | |
| download | postgresql-49d6c7d8dabad8c59ba21afe72ff32e79f822291.tar.gz postgresql-49d6c7d8dabad8c59ba21afe72ff32e79f822291.zip | |
Add SQL function array_reverse()
This function takes in input an array, and reverses the position of all
its elements. This operation only affects the first dimension of the
array, like array_shuffle().
The implementation structure is inspired by array_shuffle(), with a
subroutine called array_reverse_n() that may come in handy in the
future, should more functions able to reverse portions of arrays be
introduced.
Bump catalog version.
Author: Aleksander Alekseev
Reviewed-by: Ashutosh Bapat, Tom Lane, Vladlen Popolitov
Discussion: https://postgr.es/m/CAJ7c6TMpeO_ke+QGOaAx9xdJuxa7r=49-anMh3G5476e3CX1CA@mail.gmail.com
Diffstat (limited to 'src/backend/access/transam/xlogwait.c')
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