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From: Henson Choi <[email protected]>
To: Tatsuo Ishii <[email protected]>
To: [email protected]
To: [email protected]
To: [email protected]
To: [email protected]
To: [email protected]
Cc: Jacob Champion <[email protected]>
Cc: [email protected]
Cc: 장성준 <[email protected]>
Cc: pgsql-hackers <[email protected]>
Subject: Re: Row pattern recognition
Date: Sun, 3 May 2026 14:34:47 +0900
Message-ID: <CAAAe_zAMKtkv4i5nFhChPwR6xOjkh9sLfzSS7nW-agZwBcuHSQ@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <CAAAe_zA3vXEPkC7=fapx0VCE5F2uSgRjKjur67Yfd+JxtWPCuQ@mail.gmail.com>
	<[email protected]>
	<CAAAe_zBdwAUDNs_WFdLkFF=ewhkDkv-AqizVEVzhsfremGFb4w@mail.gmail.com>
	<[email protected]>

Hi Tatsuo, hi hackers,

I'd like to ask for a bit of review help before PGConf.dev 2026
(Vancouver, May 19–22).

For the SQL/RPR R020 poster going on display at the conference, I
have prepared a companion deep-dive page to sit behind the on-site
QR code, building on the patch series Tatsuo has been driving in
this thread:

  https://assam258-5892.github.io/postgresql/rpr/

It walks through the standard scope (R010 vs R020), worked examples,
NFA semantics, navigation functions, parser-to-executor design and
pruning rules, plus an interactive NFA simulator. To widen reach,
the page is also available in 23 AI-pretranslated languages from
the switcher:
العربية, Čeština, Dansk, Deutsch, Español, Suomi, Français,
עברית, Magyar, Italiano, 日本語, 한국어, Nederlands, Norsk,
Polski, Português (BR), Română, Русский, Slovenčina, Svenska,
Türkçe, 中文 (简体), 繁體中文.
Each translated page carries a clear "AI pre-translated, errors
possible" notice.

The ask (light, entirely optional):

  - English original has had one review pass; Korean I reviewed
    myself.
  - Tatsuo — if you ever find a free moment, a quick glance at the
    Japanese version would be very much appreciated, but absolutely
    no rush.
  - Native speakers of any of the other 22 languages — incidental
    corrections welcome (this thread or off-list), but nothing is
    expected.

References (also linked from the deep-dive page):
  - thread:
https://www.postgresql.org/message-id/flat/20230625.210509.1276733411677577841.t-ishii%40sranhm.sra....
  - latest patch (v47):
https://postgr.es/m/[email protected]
  - commitfest #4460: https://commitfest.postgresql.org/patch/4460/

Best regards,
Henson

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