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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2021-08-31 15:04:05 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2021-08-31 15:04:05 -0400 |
| commit | ba8f1a0be5833338ddbf1cea3427f6baace3f4c8 (patch) | |
| tree | c2391ccb94c937900dfe86ed2056a2eda64de6d4 /src/backend/regex/regerror.c | |
| parent | 0e7bdc722c65045d85161c6ae0125743ae93d185 (diff) | |
In pg_dump, avoid doing per-table queries for RLS policies.
For no particularly good reason, getPolicies() queried pg_policy
separately for each table. We can collect all the policies in
a single query instead, and attach them to the correct TableInfo
objects using findTableByOid() lookups. On the regression
database, this reduces the number of queries substantially, and
provides a visible savings even when running against a local
server.
Per complaint from Hubert Depesz Lubaczewski. Since this is such
a simple fix and can have a visible performance benefit, back-patch
to all supported branches.
Discussion: https://postgr.es/m/20210826084430.GA26282@depesz.com
Diffstat (limited to 'src/backend/regex/regerror.c')
0 files changed, 0 insertions, 0 deletions