Re: Concatenating String Literals in pgsql

Raymond <support@bigriverinfotech.com> writes:
> The compiler complains about the concat operator in the following code
> fragment:

> RAISE EXCEPTION
>     ''SELECT DISTINCT "t1"."usesysid" '' ||
>         ''INTO userID '' ||

RAISE EXCEPTION doesn't support expressions in its arguments, IIRC.
The format has to be a simple string literal, and anything to be plugged
into it has to be a variable reference.

So, do the concatenation beforehand.

            regards, tom lane