Re: change the order of FROM selection to make query work
От | Tom Lane |
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Тема | Re: change the order of FROM selection to make query work |
Дата | |
Msg-id | 25383.1159280369@sss.pgh.pa.us обсуждение исходный текст |
Ответ на | change the order of FROM selection to make query work ("Thomas Peter" <usenet@braindumped.com>) |
Ответы |
Re: change the order of FROM selection to make query work
Re: change the order of FROM selection to make query work |
Список | pgsql-general |
"Thomas Peter" <thomas@braindumped.com> writes: > the full code that does produce the error (and this error can be resolved > as in OP described) is: Never oversimplify a bug report. > FROM ticket as t, permission as perm, enum as p > LEFT OUTER JOIN ticket_custom c ON (t.id = c.ticket AND c.name = > 'fachabteilung') The above is, plain and simple, wrong. According to the SQL spec, JOIN binds more tightly than comma in a FROM-list, so what you had was FROM ..., (enum as p LEFT OUTER JOIN ticket_custom c ON (t.id = c.ticket AND c.name = 'fachabteilung')) which of course fails because only p and c are visible in the JOIN's ON condition. You fixed it by moving "t" to become part of the JOIN structure. I was aware that MySQL parses this sort of structure wrongly, but it's disappointing to hear that sqlite does too :-( regards, tom lane
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