Andres Freund 9ff7fd9063 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
2022-02-25 10:31:16 -08:00
..
2022-02-22 10:23:49 +09:00
2022-02-12 13:23:20 -05:00
2021-05-27 13:58:29 +02:00