Re: char columns, space padding, and the "like" operator

Tom Lane <[email protected]> Mon, 02 Feb 2009 16:38:55 -0500
Newsgroups gmane.comp.db.postgresql.interfaces
Message-ID <[email protected]>
"Haszlakiewicz, Eric" <[email protected]> writes:
> Once I realized that the value in the table actually got extended to
> 'SOMEVALUE ', things started making sense, since the equivalent quick
> select is actually:
> select 'SOMEVALUE ' like 'SOME% %';

> Unfortunately, my app has a whole bunch of places where it uses
> constructs like this against char columns.  Other databases (such as
> Informix), automatically strip spaces off char column so queries like
> the above behave in a more intuitive fashion.

Cast the char(n) column to text or varchar, and it should work more
like you're expecting.

			regards, tom lane

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