Обсуждение: [COMMITTERS] pgsql: Avoid access to uninitialized memory in shared tidbitmapiterati

Avoid access to uninitialized memory in shared tidbitmap iteration.

Primarily, this didn't work correctly when the tidbitmap ended up
empty.

Dilip Kumar, per a report from Emre Hasegeli

Discussion: http://postgr.es/m/CAFiTN-ujHFKb8WSLhK54rfqQT3r2yiPQOyeBrCDsA4p9Fwp_jw@mail.gmail.com

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/80824ddda30154d56c9f40fe47dd1900d44ced32

Modified Files
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src/backend/nodes/tidbitmap.c | 51 ++++++++++++++++++++++++++++---------------
1 file changed, 33 insertions(+), 18 deletions(-)