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logtape.c: do not preallocate for tapes when sorting

author Jeff Davis <jdavis@postgresql.org>

2020年9月12日 00:10:02 +0000 (17:10 -0700)

committer Jeff Davis <jdavis@postgresql.org>

2020年9月12日 00:10:02 +0000 (17:10 -0700)

commit 07589649639410032df281e98469db88a0b86271

tree 9d9e467f4a04d7ad9361bc379e0bd923c736c309 tree

parent 7634bd4f6d38bdef1fe442df5c2e0da73f1f90f4 commit | diff

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Also, adjust an out-of-date comment.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

src/backend/executor/nodeAgg.c diff | blob | blame | history

src/backend/utils/sort/logtape.c diff | blob | blame | history

src/backend/utils/sort/tuplesort.c diff | blob | blame | history

src/include/utils/logtape.h diff | blob | blame | history

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