Re: array in postgre
От | Oliver Elphick |
---|---|
Тема | Re: array in postgre |
Дата | |
Msg-id | 1089362472.29095.42.camel@braydb обсуждение исходный текст |
Ответ на | array in postgre (gavaneh <gavaneh@yahoo.com>) |
Список | pgsql-novice |
On Thu, 2004-07-08 at 06:20, gavaneh wrote: > Hi > > suppose we have the following query: > select ....from ...where...and x *=3; > > "x" is an integer array,here we want to check whether > "x" contains 3 or not,this is the same as one of > postgre documentaion example,however it doesnt > work.(why???) > > should I set any option? any idea? From the documentation: 9.17.3. ANY/SOME (array) expression operator ANY (array expression) expression operator SOME (array expression) The right-hand side is a parenthesized expression, which must yield an array value. The left-hand expression is evaluated and compared to each element of the array using the given operator, which must yield a Boolean result. The result of ANY is "true" if any true result is obtained. The result is "false" if no true result is found (including the special case where the array has zero elements). SOME is a synonym for ANY So in your case: SELECT ... FROM .. WHERE ... 3 = ANY (x); Oliver Elphick
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