Re: operator precedence issues
От
Tom Lane
Тема
Re: operator precedence issues
Дата
Msg-id
15949.1378217592@sss.pgh.pa.us
Ответ на
Re: operator precedence issues (Andres Freund)
Список
Дерево обсуждения
operator precedence issues Merlin Moncure <mmoncure@gmail.com>
Re: operator precedence issues Andres Freund <andres@2ndquadrant.com>
Re: operator precedence issues Merlin Moncure <mmoncure@gmail.com>
Re: operator precedence issues Andres Freund <andres@2ndquadrant.com>
Re: operator precedence issues Tom Lane <tgl@sss.pgh.pa.us>
operator precedence issues Merlin Moncure <mmoncure@gmail.com>
Re: operator precedence issues Tom Lane <tgl@sss.pgh.pa.us>
Andres Freund writes: > On 2013-09-03 08:59:53 -0500, Merlin Moncure wrote: >> While playing around with Andres's trick, I noticed that it works but >> will not match against operators taking "any" although those will >> match with explicit schema declaration (FWICT it goes through the >> search_path trying to explicitly match int/int operator then goes >> again matches "any"). That's pretty weird: > Not surprising. We look for the best match for an operator and > explicitly matching types will be that. If there were no operator(int, > int) your anyelement variant should get called. Yeah, this has exactly nothing to do with operator precedence. Precedence is about which operator binds tighter in cases like "A+B*C". regards, tom lane
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