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authorHeikki Linnakangas <heikki.linnakangas@iki.fi>2015-05-19 19:21:46 +0300
committerHeikki Linnakangas <heikki.linnakangas@iki.fi>2015-05-19 19:26:10 +0300
commit2c2c7bc4592d561ccde1663dc7d28abc004e47dd (patch)
treef8737a5eb7458d9d314781d2988e2feb170b6540
parent2360eea3be67fb9650067817a4e50fc2f1b8cff7 (diff)
downloadpostgresql-2c2c7bc4592d561ccde1663dc7d28abc004e47dd.tar.gz
postgresql-2c2c7bc4592d561ccde1663dc7d28abc004e47dd.zip
Fix off-by-one error in Assertion.
The point of the assertion is to ensure that the arrays allocated in stack are large enough, but the check was one item short. This won't matter in practice because MaxIndexTuplesPerPage is an overestimate, so you can't have that many items on a page in reality. But let's be tidy. Spotted by Anastasia Lubennikova. Backpatch to all supported versions, like the patch that added the assertion.
-rw-r--r--src/backend/storage/page/bufpage.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/storage/page/bufpage.c b/src/backend/storage/page/bufpage.c
index 4f32333f42d..71e7f5aaa23 100644
--- a/src/backend/storage/page/bufpage.c
+++ b/src/backend/storage/page/bufpage.c
@@ -723,7 +723,7 @@ PageIndexMultiDelete(Page page, OffsetNumber *itemnos, int nitems)
int nextitm;
OffsetNumber offnum;
- Assert(nitems < MaxIndexTuplesPerPage);
+ Assert(nitems <= MaxIndexTuplesPerPage);
/*
* If there aren't very many items to delete, then retail