Correct StartupSUBTRANS for page wraparound
StartupSUBTRANS() incorrectly handled cases near the max pageid in the subtrans
data structure, which in some cases could lead to errors in startup for Hot
Standby.
This patch wraps the pageids correctly, avoiding any such errors.
Identified by exhaustive crash testing by Jeff Janes.
Jeff Janes
Branch
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REL9_5_STABLE
Details
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http://git.postgresql.org/pg/commitdiff/c479024d325a02e0eb352e5b7f1873b4c51a5205
Modified Files
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src/backend/access/transam/subtrans.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)