Skip useless paren-captures in regexps

Title

Topic

Performance

Created

2021-08-04 22:18:31

Last modified

2021-09-01 17:05:53 (3 years, 2 months ago)

Latest email

2021-08-24 18:29:01 (3 years, 2 months ago)

Status

2021-09: Committed

Target version

Authors

Tom Lane (tgl)

Reviewers

Mark Dilger (hornschnorter)Become reviewer

Committer

Tom Lane (tgl)

Links

Checkout latest CFbot patchset

Go to your local checkout of the PostgreSQL repository and run:

git remote add commitfest https://github.com/postgresql-cfbot/postgresql.git
git fetch commitfest cf/3275
git checkout commitfest/cf/3275

Emails

Another regexp performance improvement: skip useless paren-captures: First at 2021-08-04 22:15:34 by Tom Lane <tgl at sss.pgh.pa.us>
Latest at 2021-08-24 18:29:01 by Tom Lane <tgl at sss.pgh.pa.us>
Latest attachment (alternate-fix-zero-quantified-nested-parens.patch) at 2021-08-10 02:20:33 from Tom Lane <tgl at sss.pgh.pa.us>
    Attachment (alternate-fix-zero-quantified-nested-parens.patch) at 2021-08-10 02:20:33 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (fix-zero-quantified-nested-parens.patch) at 2021-08-09 23:31:41 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (let-regexp_replace-use-NOSUB.patch) at 2021-08-09 19:14:45 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (optimize-useless-captures-3.patch) at 2021-08-08 20:25:00 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (optimize-useless-captures-2.patch) at 2021-08-08 17:04:38 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (optimize-useless-captures-1.patch) at 2021-08-04 22:15:34 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)

History

When	Who	What
2021-09-01 17:05:53	Tom Lane (tgl)	Changed reviewers to Mark Dilger (hornschnorter)
2021-09-01 17:05:27	Tom Lane (tgl)	Closed in commitfest 2021-09 with status: Committed
2021-09-01 17:05:27	Tom Lane (tgl)	Changed committer to tgl
2021-08-04 22:18:51	Tom Lane (tgl)	Changed authors to Tom Lane (tgl)
2021-08-04 22:18:31	Tom Lane (tgl)	Attached mail thread 2219936.1628115334@sss.pgh.pa.us
2021-08-04 22:18:31	Tom Lane (tgl)	Created patch record