Re: Row pattern recognition

From: Tatsuo Ishii <ishii(at)postgresql(dot)org>
To: assam258(at)gmail(dot)com
Cc: jian(dot)universality(at)gmail(dot)com, zsolt(dot)parragi(at)percona(dot)com, sjjang112233(at)gmail(dot)com, vik(at)postgresfriends(dot)org, er(at)xs4all(dot)nl, jacob(dot)champion(at)enterprisedb(dot)com, david(dot)g(dot)johnston(at)gmail(dot)com, peter(at)eisentraut(dot)org, li(dot)evan(dot)chao(at)gmail(dot)com, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Row pattern recognition
Date: 2026-06-13 12:25:30
Message-ID: 20260613.212530.63949290085162247.ishii@postgresql.org
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Hi,

> Hi hackers,
>
> This refreshes the v48 series [1]: Jian He's review of the v47-000x
> cleanup patches [2] (my point-by-point reply [3]) is now applied as
> nocfbot-0069..0077. nocfbot-0001..0068 are unchanged from the last post
> [1] (rebase only), except nocfbot-0039, which is voided here (see below).

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

Attachment Content-Type Size
v48-0001-Row-pattern-recognition-patch-for-raw-parser-v48.patch application/octet-stream 37.9 KB
v48-0002-Row-pattern-recognition-patch-parse-analysis.patch application/octet-stream 50.0 KB
v48-0003-Row-pattern-recognition-patch-rewriter.patch application/octet-stream 8.2 KB
v48-0004-Row-pattern-recognition-patch-planner.patch application/octet-stream 103.2 KB
v48-0005-Row-pattern-recognition-patch-executor-and-comma.patch application/octet-stream 169.4 KB
v48-0006-Row-pattern-recognition-patch-docs.patch application/octet-stream 87.9 KB
v48-0007-Row-pattern-recognition-patch-tests-SQL-data.patch application/octet-stream 545.2 KB
v48-0008-Row-pattern-recognition-patch-tests-expected.patch application/octet-stream 834.2 KB
v48-0009-Row-pattern-recognition-patch-typedefs.list.patch application/octet-stream 1.7 KB

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