Fix incorrect loop counts in tidbitmap.c.
A couple of places that should have been iterating over WORDS_PER_CHUNK
words were iterating over WORDS_PER_PAGE words instead. This thinko
accidentally failed to fail, because (at least on common architectures
with default BLCKSZ) WORDS_PER_CHUNK is a bit less than WORDS_PER_PAGE,
and the extra words being looked at were always zero so nothing happened.
Still, it's a bug waiting to happen if anybody ever fools with the
parameters affecting TIDBitmap sizes, and it's a small waste of cycles
too. So back-patch to all active branches.
Etsuro Fujita
Branch
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REL9_1_STABLE
Details
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http://git.postgresql.org/pg/commitdiff/e3a02a39268ff14a8f5f15f1bd9fb59869f26436
Modified Files
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src/backend/nodes/tidbitmap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)