Partially undo commit 94da73281.
On closer inspection, mcv.c isn't as broken for ScalarArrayOpExpr
as I thought. The Var-on-right issue is real enough, but actually
it does cope fine with a NULL array constant --- I was misled by
an XXX comment suggesting it didn't. Undo that part of the code
change, and replace the XXX comment with something less misleading.
Branch
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REL_15_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/6303df08f0c4961c4e13b8e2aefab2dc1be7cd2d
Modified Files
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src/backend/statistics/extended_stats.c | 7 +++----
src/backend/statistics/mcv.c | 25 ++++++++++++++++---------
2 files changed, 19 insertions(+), 13 deletions(-)