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: 2026-02-03T00:00:39Z

Lists: pgsql-hackers

Attachments

fix_non_ascii.txt (application/octet-stream)

Hi Henson,

> The series of patches are to implement the row pattern recognition
> (SQL/RPR) feature. Currently the implementation is a subset of SQL/RPR
> (ISO/IEC 19075-2:2016). Namely, implementation of some features of
> R020 (WINDOW clause). R010 (MATCH_RECOGNIZE) is out of the scope of
> the patches.
> 
> Attached are the v42 patches.

I found a small typo in a function comment: non-ASCII letter was
used. In my understanding, using non-ASCII letters in the program
files are not recommended. Patch attached.

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