Improve possible performance regression
authorPeter Eisentraut <peter@eisentraut.org>
Fri, 7 Mar 2025 10:20:26 +0000 (11:20 +0100)
committerPeter Eisentraut <peter@eisentraut.org>
Fri, 7 Mar 2025 10:46:33 +0000 (11:46 +0100)
commit7f24c0274385ea3d4c797cc2fd60d9a55f3a8d74
tree675c0e17ebc4a97b655ac8128f5729d14a8205a6
parentaf4002b381d86df6479962953d82f03ecb4e2e06
Improve possible performance regression

Commit ce62f2f2a0a introduced calls to GetIndexAmRoutineByAmId() in
lsyscache.c functions.  This call is a bit more expensive than a
simple syscache lookup.  So rearrange the nesting so that we call that
one last and do the cheaper checks first.

Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/E1tngY6-0000UL-2n%40gemulon.postgresql.org
src/backend/utils/cache/lsyscache.c