| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql: Avoid holding vmbuffer pin after VACUUM. |
| Date: | 2012-12-03 18:57:54 |
| Message-ID: | E1TfbDG-0007a0-TN@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
Avoid holding vmbuffer pin after VACUUM.
During VACUUM if we pause to perform a cycle
of index cleanup we drop the vmbuffer pin,
so we should do the same thing when heap
scan completes. This avoids holding vmbuffer
pin across the main index cleanup in VACUUM,
which could be minutes or hours longer than
necessary for correctness.
Bug report and suggested fix from Pavan Deolasee
Branch
------
REL9_2_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/17ee02ea1c87b96a4d687d3319f6f4602450d6cb
Modified Files
--------------
src/backend/commands/vacuumlazy.c | 16 +++++++++-------
1 files changed, 9 insertions(+), 7 deletions(-)
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