Re: Problem with view
От | wieck@debis.com (Jan Wieck) |
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Тема | Re: Problem with view |
Дата | |
Msg-id | m12cE7I-0003kGC@orion.SAPserv.Hamburg.dsh.de обсуждение исходный текст |
Ответ на | Problem with view (Wenjin Zheng <wenjin.zheng@lsbc.com>) |
Ответы |
Re: Problem with view
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Список | pgsql-hackers |
> I have got another problem. I have a table(table tempOne) that has two > fields, seqid(int) and phredscore(int). They are one to many relationship, > e.g. one seqid has many phredscore. I would like to get the row that has > the max(phredscore). So I first created a view as follow: > "create view maxphred as select seqid, max(phredscore) as phredscore from > tempOne group by seqid;" Views are known to have severe problems with aggregates and grouping. And once again these are problems we want to tackle with the parse-/querytree overhaul. Oh man - this is one of the most important things I see. Jan -- #======================================================================# # It's easier to get forgiveness for being wrong than for being right. # # Let's break this rule - forgive me. # #========================================= wieck@debis.com (Jan Wieck) #
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