Re: Row pattern recognition

Tatsuo Ishii <ishii@postgresql.org>

From: Tatsuo Ishii <ishii@postgresql.org>

To: pgsql-hackers@postgresql.org

Cc: assam258@gmail.com, jian.universality@gmail.com, zsolt.parragi@percona.com, sjjang112233@gmail.com, vik@postgresfriends.org, er@xs4all.nl, jacob.champion@enterprisedb.com, david.g.johnston@gmail.com, peter@eisentraut.org, li.evan.chao@gmail.com

Date: 2026-06-19T11:39:01Z

Lists: pgsql-hackers

Attachments

v49-0001-Row-pattern-recognition-patch-for-raw-parser-v49.patch (application/octet-stream) patch v49-0001
v49-0002-Row-pattern-recognition-patch-parse-analysis.patch (application/octet-stream) patch v49-0002
v49-0003-Row-pattern-recognition-patch-rewriter.patch (application/octet-stream) patch v49-0003
v49-0004-Row-pattern-recognition-patch-planner.patch (application/octet-stream) patch v49-0004
v49-0005-Row-pattern-recognition-patch-executor-and-comma.patch (application/octet-stream) patch v49-0005
v49-0006-Row-pattern-recognition-patch-docs.patch (application/octet-stream) patch v49-0006
v49-0007-Row-pattern-recognition-patch-tests-SQL-data.patch (application/octet-stream) patch v49-0007
v49-0008-Row-pattern-recognition-patch-tests-expected.patch (application/octet-stream) patch v49-0008
v49-0009-Row-pattern-recognition-patch-typedefs.list.patch (application/octet-stream) patch v49-0009

Hi,

Attached is the v49 RPR patches. Just rebased. Except that, nothing
has been changed since v48.

> I have created v48 RPR (Row pattern recognition) patches based on the
> attached incremental patches against v47 patches. I have briefly
> looked through all the incremental patches. If I have missed
> something, I will follow up later.  The patches are based on the
> commit 3e3d7875e95 on the master branch.
> 
> 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.

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