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(parent: 4216858) | patch
Optimize RelationFindReplTupleSeq() for CLOBBER_CACHE_ALWAYS.
authorNoah Misch <noah@leadboat.com>
Sat, 11 Apr 2020 17:30:12 +0000 (10:30 -0700)
committerNoah Misch <noah@leadboat.com>
Sat, 11 Apr 2020 17:30:12 +0000 (10:30 -0700)
commit328c70997bc3518a50bd9a8ff33de349a7223413
tree2eeaa19f478be50153228d451240f1bd783138batree
parent421685812290406daea58b78dfab0346eb683bbbcommit | diff
Optimize RelationFindReplTupleSeq() for CLOBBER_CACHE_ALWAYS.

Specifically, remember lookup_type_cache() results instead of retrieving
them once per comparison.  Under CLOBBER_CACHE_ALWAYS, this reduced
src/test/subscription/t/001_rep_changes.pl elapsed time by an order of
magnitude, which reduced check-world elapsed time by 9%.

Discussion: https://postgr.es/m/20200406085420.GC162712@rfd.leadboat.com
src/backend/executor/execReplication.c diff | blob | blame | history
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