pg_waldump: Fix error message for WAL files smaller than XLOG_BLCKSZ.
When opening a WAL file smaller than XLOG_BLCKSZ (e.g. 0 bytes long) while
determining the wal_segment_size, pg_waldump checked errno, despite errno not
being set by the short read. Resulting in a bogus error message.
Author: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://postgr.es/m/20220214.181847.775024684568733277.horikyota.ntt@gmail.com
Backpatch: 11-, the bug was introducedin fc49e24fa
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/cd83cb953606b94966981056e79dbb6c48751055
Modified Files
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src/bin/pg_waldump/pg_waldump.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
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