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
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/1ca2eb103113d64930cf1120ba2beaaebd1076f4
Modified Files
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src/backend/optimizer/path/equivclass.c | 8 +++++---
src/backend/optimizer/plan/createplan.c | 3 +++
2 files changed, 8 insertions(+), 3 deletions(-)
