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| author | Tomas Vondra <tomas.vondra@postgresql.org> | 2019-04-04 00:04:31 +0200 |
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| committer | Tomas Vondra <tomas.vondra@postgresql.org> | 2019-04-04 00:04:31 +0200 |
| commit | ea569d64ac7174d3fe657e3e682d11053ecf1866 (patch) | |
| tree | fa6b135c64de45765a78c7f72b22481fd9b95bc3 /src/backend/utils/init/postinit.c | |
| parent | d1f04b96b99d595e80791cdb0faa9cfdde2a5afa (diff) | |
| download | postgresql-ea569d64ac7174d3fe657e3e682d11053ecf1866.tar.gz postgresql-ea569d64ac7174d3fe657e3e682d11053ecf1866.zip | |
Add SETTINGS option to EXPLAIN, to print modified settings.
Query planning is affected by a number of configuration options, and it
may be crucial to know which of those options were set to non-default
values. With this patch you can say EXPLAIN (SETTINGS ON) to include
that information in the query plan. Only options affecting planning,
with values different from the built-in default are printed.
This patch also adds auto_explain.log_settings option, providing the
same capability in auto_explain module.
Author: Tomas Vondra
Reviewed-by: Rafia Sabih, John Naylor
Discussion: https://postgr.es/m/e1791b4c-df9c-be02-edc5-7c8874944be0@2ndquadrant.com
Diffstat (limited to 'src/backend/utils/init/postinit.c')
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