Re: Row pattern recognition
От | Erik Rijkers |
---|---|
Тема | Re: Row pattern recognition |
Дата | |
Msg-id | b7ae9117-3b94-05f4-4813-05ee9ea5cce2@xs4all.nl обсуждение исходный текст |
Ответ на | Re: Row pattern recognition (Erik Rijkers <er@xs4all.nl>) |
Список | pgsql-hackers |
Op 9/22/23 om 10:23 schreef Erik Rijkers: > Op 9/22/23 om 07:16 schreef Tatsuo Ishii: >>> Attached is the fix against v6 patch. I will include this in upcoming >>> v7 patch. >> >> Attached is the v7 patch. It includes the fix mentioned above. Also > (Champion's address bounced; removed) > Sorry, I forgot to re-attach the regression.diffs with resend... Erik > Hi, > > In my hands, make check fails on the rpr test; see attached .diff file. > In these two statements: > -- using NEXT > -- using AFTER MATCH SKIP TO NEXT ROW > result of first_value(price) and next_value(price) are empty. > > Erik Rijkers > > >> this time the pattern matching engine is enhanced: previously it >> recursed to row direction, which means if the number of rows in a >> frame is large, it could exceed the limit of stack depth. The new >> version recurses over matched pattern variables in a row, which is at >> most 26 which should be small enough. >> >> Best reagards, >> -- >> Tatsuo Ishii >> SRA OSS LLC >> English: http://www.sraoss.co.jp/index_en/ >> Japanese:http://www.sraoss.co.jp > >
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