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| author | Teodor Sigaev <teodor@sigaev.ru> | 2017-03-23 19:38:47 +0300 |
|---|---|---|
| committer | Teodor Sigaev <teodor@sigaev.ru> | 2017-03-23 19:38:47 +0300 |
| commit | 218f51584d5a9fcdf702bcc7f54b5b65e255c187 (patch) | |
| tree | 6aa7f521be1a389a5cb8de72c58246f2c927e9d4 /src/backend/access/gin/ginbtree.c | |
| parent | 73561013e5aa44a1669b2cb4351f5e2b29485efb (diff) | |
| download | postgresql-218f51584d5a9fcdf702bcc7f54b5b65e255c187.tar.gz postgresql-218f51584d5a9fcdf702bcc7f54b5b65e255c187.zip | |
Reduce page locking in GIN vacuum
GIN vacuum during cleaning posting tree can lock this whole tree for a long
time with by holding LockBufferForCleanup() on root. Patch changes it with
two ways: first, cleanup lock will be taken only if there is an empty page
(which should be deleted) and, second, it tries to lock only subtree, not the
whole posting tree.
Author: Andrey Borodin with minor editorization by me
Reviewed-by: Jeff Davis, me
https://commitfest.postgresql.org/13/896/
Diffstat (limited to 'src/backend/access/gin/ginbtree.c')
| -rw-r--r-- | src/backend/access/gin/ginbtree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/access/gin/ginbtree.c b/src/backend/access/gin/ginbtree.c index 538ad5bb587..b02cb8ae58f 100644 --- a/src/backend/access/gin/ginbtree.c +++ b/src/backend/access/gin/ginbtree.c @@ -31,7 +31,7 @@ static void ginFinishSplit(GinBtree btree, GinBtreeStack *stack, /* * Lock buffer by needed method for search. */ -static int +int ginTraverseLock(Buffer buffer, bool searchMode) { Page page; |