Horton

logtape.c: do not preallocate for tapes when sorting

Jeff Davis <jdavis@postgresql.org>

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Commit: 93106d71a18afdda2b9bf6e6b8e6c7f9cea2d0ef
Author: Jeff Davis <jdavis@postgresql.org>
Date: 2020-09-12T00:21:00Z
Releases: 13.0 
logtape.c: do not preallocate for tapes when sorting

The preallocation logic is only useful for HashAgg, so disable it when
sorting.

Also, adjust an out-of-date comment.

Reviewed-by: Peter Geoghegan
Discussion: https://postgr.es/m/CAH2-Wzn_o7tE2+hRVvwSFghRb75AJ5g-nqGzDUqLYMexjOAe=g@mail.gmail.com
Backpatch-through: 13

Files

PathChange+/−
src/backend/executor/nodeAgg.c modified +1 −1
src/backend/utils/sort/logtape.c modified +25 −13
src/backend/utils/sort/tuplesort.c modified +4 −3
src/include/utils/logtape.h modified +2 −1

Discussion