Horton

pg_resetwal: Prevent division-by-zero errors

Peter Eisentraut <peter_e@gmx.net>

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Commit: f1a074b146c900bd439b6ef1953866f41b61a669
Author: Peter Eisentraut <peter_e@gmx.net>
Date: 2018-03-23T14:14:25Z
Releases: 11.0 
pg_resetwal: Prevent division-by-zero errors

Handle the case where the pg_control file specifies a WAL segment size
of 0 bytes.  This would previously have led to a division by zero error.
Change this to assume the whole file is corrupt and go to guess
everything.

Discussion: https://www.postgresql.org/message-id/a6163ad7-cc99-fdd1-dfad-25df73032ab8%402ndquadrant.com

Files

PathChange+/−
src/bin/pg_resetwal/pg_resetwal.c modified +2 −2
src/bin/pg_resetwal/t/002_corrupted.pl added +47 −0

Discussion