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| author | Tomas Vondra <tomas.vondra@postgresql.org> | 2020-12-21 18:16:16 +0100 |
|---|---|---|
| committer | Tomas Vondra <tomas.vondra@postgresql.org> | 2020-12-21 18:16:36 +0100 |
| commit | ea190ed14b4b75b38a490707d5d08231dcacfb8c (patch) | |
| tree | b477d11e0e979ae28a991483344fad2dce8eacae /src/backend/utils/adt/jsonfuncs.c | |
| parent | bd6939a4e22ff5cc4ed77eec2c3c2d4c58ea2143 (diff) | |
| download | postgresql-ea190ed14b4b75b38a490707d5d08231dcacfb8c.tar.gz postgresql-ea190ed14b4b75b38a490707d5d08231dcacfb8c.zip | |
Consider unsorted paths in generate_useful_gather_paths
generate_useful_gather_paths used to skip unsorted paths (without any
pathkeys), but that is unnecessary - the later code actually can handle
such paths just fine by adding a Sort node. This is clearly a thinko,
preventing construction of useful plans.
Backpatch to 13, where Incremental Sort was introduced.
Author: James Coleman
Reviewed-by: Tomas Vondra
Backpatch-through: 13
Discussion: https://postgr.es/m/CAAaqYe8cK3g5CfLC4w7bs=hC0mSksZC=H5M8LSchj5e5OxpTAg@mail.gmail.com
Diffstat (limited to 'src/backend/utils/adt/jsonfuncs.c')
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