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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2019-03-22 14:56:05 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2019-03-22 14:56:12 -0400 |
| commit | 734308a220729e4ececa3758bdcae39a335d55ea (patch) | |
| tree | a05d6decc28230b7833eac133776f80522c4e443 /src/backend/access/spgist/spgutils.c | |
| parent | 09963cedced7ffb98a06298cc16305767fd2b4dd (diff) | |
| download | postgresql-734308a220729e4ececa3758bdcae39a335d55ea.tar.gz postgresql-734308a220729e4ececa3758bdcae39a335d55ea.zip | |
Rearrange make_partitionedrel_pruneinfo to avoid work when we can't prune.
Postpone most of the effort of constructing PartitionedRelPruneInfos
until after we have found out whether run-time pruning is needed at all.
This costs very little duplicated effort (basically just an extra
find_base_rel() call per partition) and saves quite a bit when we
can't do run-time pruning.
Also, merge the first loop (for building relid_subpart_map) into
the second loop, since we don't need the map to be valid during
that loop.
Amit Langote
Discussion: https://postgr.es/m/9d7c5112-cb99-6a47-d3be-cf1ee6862a1d@lab.ntt.co.jp
Diffstat (limited to 'src/backend/access/spgist/spgutils.c')
0 files changed, 0 insertions, 0 deletions