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Tom Lane c63913ca7d Improve inefficient regexes in vacuumdb TAP test. ... The regexes used in 102_vacuumdb_stages.pl to check the postmaster log for expected output contained several places with ".*.*", which is underdetermined and can cause exponential runtime growth in Perl's regex matcher (since it's not bright enough not to waste time seeing whether different splits of the same substring would allow a match). We were fortunate that the amount of text in the postmaster log was generally not enough to make the runtime go to the moon; although commit 6271fceb8 had been on the hairy edge of an obvious problem, thanks to its increasing the default log verbosity to DEBUG1. Experimentation shows that anyone who tried to run this test case with an even higher log verbosity would have been in for serious pain. But even at default logging level, fixing this saves several hundred ms on my workstation, more on slower buildfarm members. Remove the extra ".*"s, restoring more-or-less-linear matching speed. Back-patch to 9.4 where the test case was added, mostly in case anyone tries to do related debugging in a back branch. Discussion: https://postgr.es/m/32459.1525657786@sss.pgh.pa.us		8 years ago
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initdb	Improve initdb's query for generating default descriptions a little.	8 years ago
pg_archivecleanup	Reindent Perl files with perltidy version 20170521.	8 years ago
pg_basebackup	Remove extra newlines after PQerrorMessage()	8 years ago
pg_config	Update copyright for 2018	8 years ago
pg_controldata	perltidy: Add option --nooutdent-long-quotes	8 years ago
pg_ctl	Post-feature-freeze pgindent run.	8 years ago
pg_dump	Remove extra newlines after PQerrorMessage()	8 years ago
pg_resetwal	perltidy: Add option --nooutdent-long-quotes	8 years ago
pg_rewind	perltidy: Add option --nooutdent-long-quotes	8 years ago
pg_test_fsync	Make WAL segment size configurable at initdb time.	8 years ago
pg_test_timing	pg_test_timing: Some NLS fixes	8 years ago
pg_upgrade	Allow MSYS as well as MINGW in Msys uname	8 years ago
pg_verify_checksums	Don't attempt to verify checksums on new pages	8 years ago
pg_waldump	Update copyright for 2018	8 years ago
pgbench	Fix compiler warning on Windows.	8 years ago
pgevent	Update copyright for 2018	8 years ago
psql	Post-feature-freeze pgindent run.	8 years ago
scripts	Improve inefficient regexes in vacuumdb TAP test.	8 years ago
Makefile	Allow on-line enabling and disabling of data checksums	8 years ago