Date: Mon, 30 Mar 2026 14:16:15 +0200
From: hubert depesz lubaczewski <depesz@depesz.com>
Sender: depesz@depesz.com
To: Ibrahim Shaame <ishaame@gmail.com>
Cc: "pgsql-novice@lists.postgresql.org" <pgsql-novice@lists.postgresql.org>
Subject: Re: Adding column in a recursive query
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On Mon, Mar 30, 2026 at 01:20:14PM +0300, Ibrahim Shaame wrote:
> I have a working recursive query. I want to add another column, but it
> gives me an error:
> ERROR:  operator does not exist: integer = text
> LINE 21:           WHERE e.nasaba_1 = x_1.namba
>                                     ^
> HINT:  No operator matches the given name and argument types. You might
> need to add explicit type casts.
> Any suggestion of where I am doing it wrong?

You can't compare text and integer.

Does 'abc' equal 0 ?
What about '01' and 1 ?

Cast one side to the type of the other. Or, better yet, normalize
datatypes in tables, so that you don't have to compare across types.

Best regards,

depesz