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| author | Teodor Sigaev <teodor@sigaev.ru> | 2015-09-02 20:08:58 +0300 |
|---|---|---|
| committer | Teodor Sigaev <teodor@sigaev.ru> | 2015-09-02 20:08:58 +0300 |
| commit | 30bb26b5e04cff911db960801e32e5f57045eb61 (patch) | |
| tree | b05b945313ce910e999818a1194b2e88183b32f7 /src/backend/access/gin/gininsert.c | |
| parent | 075ab425bdbb4bb2de41624305f20885cae7ba7e (diff) | |
| download | postgresql-30bb26b5e04cff911db960801e32e5f57045eb61.tar.gz postgresql-30bb26b5e04cff911db960801e32e5f57045eb61.zip | |
Allow usage of huge maintenance_work_mem for GIN build.
Currently, in-memory posting list during GIN build process is limited 1GB
because of using repalloc. The patch replaces call of repalloc to repalloc_huge.
It increases limit of posting list from 180 millions
(1GB / sizeof(ItemPointerData)) to 4 billions limited by maxcount/count fields
in GinEntryAccumulator and subsequent calls. Check added.
Also, fix accounting of allocatedMemory during build to prevent integer
overflow with maintenance_work_mem > 4GB.
Robert Abraham <robert.abraham86@googlemail.com> with additions by me
Diffstat (limited to 'src/backend/access/gin/gininsert.c')
| -rw-r--r-- | src/backend/access/gin/gininsert.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/access/gin/gininsert.c b/src/backend/access/gin/gininsert.c index fc44f0205d0..49e91853c3c 100644 --- a/src/backend/access/gin/gininsert.c +++ b/src/backend/access/gin/gininsert.c @@ -281,7 +281,7 @@ ginBuildCallback(Relation index, HeapTuple htup, Datum *values, &htup->t_self); /* If we've maxed out our available memory, dump everything to the index */ - if (buildstate->accum.allocatedMemory >= maintenance_work_mem * 1024L) + if (buildstate->accum.allocatedMemory >= (Size)maintenance_work_mem * 1024L) { ItemPointerData *list; Datum key; |