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(parent: 9aff4dc) | patch
Improve find_em_expr_usable_for_sorting_rel comment
authorTomas Vondra <tomas.vondra@postgresql.org>
Tue, 22 Dec 2020 01:00:39 +0000 (02:00 +0100)
committerTomas Vondra <tomas.vondra@postgresql.org>
Tue, 22 Dec 2020 01:00:51 +0000 (02:00 +0100)
commit1ca2eb103113d64930cf1120ba2beaaebd1076f4
tree509b74587f193d371b22e9422f161798f58f3401tree
parent9aff4dc01fbb9e126efafd839ae8541362328f1acommit | diff
Improve find_em_expr_usable_for_sorting_rel comment

Clarify the relationship between find_em_expr_usable_for_sorting_rel and
prepare_sort_from_pathkeys, i.e. what restrictions need to be shared
between those two places.

Author: James Coleman
Reviewed-by: Tomas Vondra
Backpatch-through: 13
Discussion: https://postgr.es/m/CAAaqYe8cK3g5CfLC4w7bs%3DhC0mSksZC%3DH5M8LSchj5e5OxpTAg%40mail.gmail.com
src/backend/optimizer/path/equivclass.c diff | blob | blame | history
src/backend/optimizer/plan/createplan.c diff | blob | blame | history
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