Re: calling a function over several rows

From: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
To: Adam Rich <adam(dot)r(at)sbcglobal(dot)net>
Cc: postgresql Forums <pgsql-general(at)postgresql(dot)org>
Subject: Re: calling a function over several rows
Date: 2009-11-17 06:17:02
Message-ID: 162867790911162217n77cd3148i1048bc753ff0b1a8@mail.gmail.com
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2009/11/17 Adam Rich <adam(dot)r(at)sbcglobal(dot)net>:
> Hello,
> There is an existing function which takes an integer and returns a record.
>  I need to call this function with every integer in a table.  Is there a
> simple shortcut for doing this?
>
> I'm looking for something like:
>
> select f.*
> from function(t.value) f, table t
>

Hello,

attention, relation databases isn't spreadsheet. There isn't any
shortcut. You can write function based on information_schema.colums
that helps with generating SQL statement.

Regards
Pavel Stehule

> Thanks,
> Adam
>
>
>
>
>
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