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(parent: 926ecf8) | patch
HashAgg: before spilling tuples, set unneeded columns to NULL.
authorJeff Davis <jdavis@postgresql.org>
Mon, 13 Jul 2020 00:48:49 +0000 (17:48 -0700)
committerJeff Davis <jdavis@postgresql.org>
Mon, 13 Jul 2020 06:08:16 +0000 (23:08 -0700)
commitd8a7ce245095e3a70a2ad738c17be95593f68996
tree9db07c4893f13ff25740656ea8bd98f947d57ed6tree
parent926ecf83c0bab7e985eaf5727bb69cdf8ce6b067commit | diff
HashAgg: before spilling tuples, set unneeded columns to NULL.

This is a replacement for 4cad2534. Instead of projecting all tuples
going into a HashAgg, only remove unnecessary attributes when actually
spilling. This avoids the regression for the in-memory case.

Discussion: https://postgr.es/m/a2fb7dfeb4f50aa0a123e42151ee3013933cb802.camel%40j-davis.com
Backpatch-through: 13
src/backend/executor/nodeAgg.c diff | blob | blame | history
src/include/nodes/execnodes.h diff | blob | blame | history
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