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Allow VACUUM to be run with index cleanup disabled.

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This commit adds a new reloption, vacuum_index_cleanup, which
controls whether index cleanup is performed for a particular
relation by default.  It also adds a new option to the VACUUM
command, INDEX_CLEANUP, which can be used to override the
reloption.  If neither the reloption nor the VACUUM option is
used, the default is true, as before.

Masahiko Sawada, reviewed and tested by Nathan Bossart, Alvaro
Herrera, Kyotaro Horiguchi, Darafei Praliaskouski, and me.
The wording of the documentation is mostly due to me.

Discussion: http://postgr.es/m/CAD21AoAt5R3DNUZSjOoXDUY=naYPUOuffVsRzuTYMz29yLzQCA@mail.gmail.com
This commit is contained in:
Robert Haas
2019-04-04 14:58:53 -04:00
parent 74eb2176bf
commit a96c41feec
11 changed files with 193 additions and 25 deletions
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src/include/utils/rel.h
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@@ -266,6 +266,7 @@ typedef struct StdRdOptions
AutoVacOpts autovacuum; /* autovacuum-related options */
bool user_catalog_table; /* use as an additional catalog relation */
int parallel_workers; /* max number of parallel workers */
bool vacuum_index_cleanup; /* enables index vacuuming and cleanup */
} StdRdOptions;
#define HEAP_MIN_FILLFACTOR 10