using position in where

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От Lynn Manhart
Тема using position in where
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Msg-id 3C9F1C6915B24766B3BC396CA04A93C0@LynnPC
обсуждение исходный текст
Ответ на Re: How to change primary key in a table  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: using position in where  (John DeSoi <desoi@pgedit.com>)
Список pgsql-novice
I have an application where I need to "select" based on whether or not a
"text" column value contains a given substring. I have tried the "position"
function as follows, but it doesn't return anything:

select * in customers where position ('sub_string' in 'text_column') > 0;

Is there another way to do this?

Another question - how are upper and lower case handled when using "order
by"? In my experimenting, it seems to be doing a case insensitive compare,
but the docs I've read seem to indicate otherwise.

Thanks in advance,
Lynn


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