You are 100% correct Rich. I changed the query to use substr() instead
of substring() and it works fine. Thanks for your quick answer.
- Mark
On Fri, 2003-03-07 at 11:28, Richard Huxton wrote:
> On Friday 07 Mar 2003 3:58 pm, Mark Mitchell wrote:
> > I have a underscores in most all of the column names in this database.
> > I've ran into a problem where Postgres doesn't like them.
> >
> > SELECT * FROM "NATAB" WHERE
> > "NATAB"."NA_LAST_NAME" LIKE 'MITCHELL%' AND
> > SUBSTRING("NATAB"."NA_NAME",0,"NATAB"."NA_COLON") LIKE 'MARK%'
> >
> > Produces the error : "ESCAPE string must be empty or one character"
> >
> > The column "NA_COLON" is a column that holds the numeric position at
> > which the first name ends and the last name begins. If the column name
> > does not contain an underscore it works fine. Any suggestions?
>
> Are you sure you don't mean substr() rather than substring()? I think the form
> you're using does a POSIX regexp match and uses the third param as an escape
> character.
>
> --
> Richard Huxton
>
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