| From: | Tatsuo Ishii <ishii(at)postgresql(dot)org> |
|---|---|
| To: | assam258(at)gmail(dot)com |
| Cc: | jacob(dot)champion(at)enterprisedb(dot)com, david(dot)g(dot)johnston(at)gmail(dot)com, vik(at)postgresfriends(dot)org, er(at)xs4all(dot)nl, peter(at)eisentraut(dot)org, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Row pattern recognition |
| Date: | 2026-02-07 04:31:43 |
| Message-ID: | 20260207.133143.1951390390459539453.ishii@postgresql.org |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | 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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