Re: Row pattern recognition

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От Tatsuo Ishii
Тема Re: Row pattern recognition
Дата
Msg-id 20260207.133143.1951390390459539453.ishii@postgresql.org
обсуждение
Ответ на Re: Row pattern recognition  (Henson Choi <assam258@gmail.com>)
Ответы Re: Row pattern recognition
Список pgsql-hackers
> Yes, I've already restored Test 11.3 with the original pattern:
> 
>   DEFINE A AS v > PREV(v) OR PREV(v) IS NULL

Good.

> Additionally, I've implemented cross-platform normalization for Storage
> memory values
> to address the platform differences (18kB vs 19kB, 23kB vs 24kB, etc.)
> observed between
> macOS and Rocky Linux 10.
> 
> The attached patch includes:
> 
> 1. Test 11.3 restoration with original PREV(v) IS NULL pattern
> 2. Cross-platform Storage normalization using rpr_explain_filter() PL/pgSQL
> function

+-- Filter function to normalize Storage memory values only (not NFA statistics)
+-- Works for text, JSON, and XML formats

What about add reasoning why only storage memory values are normalized
something like:

-- NFA statistics should not change between platforms.

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



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