Re: Row pattern recognition

From: Tatsuo Ishii <ishii(at)postgresql(dot)org>
To: jacob(dot)champion(at)enterprisedb(dot)com
Cc: vik(at)postgresfriends(dot)org, pgsql-hackers(at)postgresql(dot)org, er(at)xs4all(dot)nl, peter(at)eisentraut(dot)org
Subject: Re: Row pattern recognition
Date: 2024-10-22 04:53:43
Message-ID: 20241022.135343.842876007254579242.ishii@postgresql.org
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Hi,

I wonder how "PREV(col + 1)" is different from "PREV(col) + 1".
Currently my RPR implementation does not allow PREV(col + 1). If
"PREV(col + 1)" is different from "PREV(col) + 1", it maybe worthwhile
to implement "PREV(col + 1)".

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

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