Re: Row pattern recognition

Tatsuo Ishii <ishii@postgresql.org>

From: Tatsuo Ishii <ishii@postgresql.org>

To: assam258@gmail.com

Cc: jacob.champion@enterprisedb.com, david.g.johnston@gmail.com, vik@postgresfriends.org, er@xs4all.nl, peter@eisentraut.org, pgsql-hackers@postgresql.org

Date: 2026-01-15T04:56:24Z

Lists: pgsql-hackers

Attachments

v38-0001-Row-pattern-recognition-patch-for-raw-parser.patch (application/octet-stream) patch v38-0001
v38-0002-Row-pattern-recognition-patch-parse-analysis.patch (application/octet-stream) patch v38-0002
v38-0003-Row-pattern-recognition-patch-rewriter.patch (application/octet-stream) patch v38-0003
v38-0004-Row-pattern-recognition-patch-planner.patch (application/octet-stream) patch v38-0004
v38-0005-Row-pattern-recognition-patch-executor-and-comma.patch (application/octet-stream) patch v38-0005
v38-0006-Row-pattern-recognition-patch-docs.patch (application/octet-stream) patch v38-0006
v38-0007-Row-pattern-recognition-patch-tests.patch (application/octet-stream) patch v38-0007
v38-0008-Row-pattern-recognition-patch-typedefs.list.patch (application/octet-stream) patch v38-0008

Hi Henson,

> Hi Ishii-san,
> 
> 
> The attached patch implements streaming NFA-based pattern matching.
> This is based on your v37 patch and the pattern grammar work I submitted
> earlier.

Great!

> This is a testable draft for review, not production-ready yet. It allows
> in-depth verification of pattern optimization, pattern matching/merging,
> context absorption, and window behavior.

I squashed your patches into my v37 patches and created v38 patches.
(See attached). Will it be Okay for you to work on the patches from
now on?

Also I have added you to the commit message as an author.

> Summary of changes:

Will check.

Best regards,
--
Tatsuo Ishii
SRA OSS K.K.
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Adjust cross-version upgrade tests for seg_out() fix
- 3e3d7875e956 19 (unreleased) cited
Rationalize error comments in partition split/merge tests
- ecb2508aaf9b 19 (unreleased) cited
Add fast path for foreign key constraint checks
- 2da86c1ef9b5 19 (unreleased) cited
Fix assorted pretty-trivial memory leaks in the backend.
- e78d1d6d47dc 19 (unreleased) cited
Add temporal FOREIGN KEY contraints
- 89f908a6d0ac 18.0 cited
Add trailing commas to enum definitions
- 611806cd726f 17.0 cited
Remove obsolete executor cleanup code
- d060e921ea5a 17.0 cited