mirror of
https://git.postgresql.org/git/postgresql.git
synced 2026-02-15 10:57:02 +08:00
bbbf71d9a6
Commit f696c0cd5f caused a test failure in 002_pg_upgrade.pl, because an earlier s/// operator caused qr// to no longer match the empty string. Use qr/^$/ instead, which is a better test anyway, because we expect the stderr to be empty. Initially this appeared to be a perl bug, but per discussion, it seems that it was a misunderstanding of how perl works: an empty pattern uses the last successful pattern. Given how surprising that behavior is to perl non-experts, we will need to look for similar problems elsewhere and eliminate the use of empty patterns throughout the code. For now, address this one instance to fix the buildfarm. Discussion: https://postgr.es/m/0ef325fa06e7a1605c4e119c4ecb637c67e5fb4e.camel@j-davis.com Reviewed-by: Tom Lane