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From: Vianello, Dan A <[email protected]>
To: Chamath Sajeewa <[email protected]>
To: [email protected] <[email protected]>
Subject: RE: [EXTERNAL] Pgsql error in coalesce
Date: Mon, 27 Jul 2020 17:27:00 +0000
Message-ID: <[email protected]> (raw)
In-Reply-To: <CACpofejQ12OBATx9Mi1YB24bj4Y4Ey6gq0fmncPp-b3hAyRtyQ@mail.gmail.com>
References: <CACpofejQ12OBATx9Mi1YB24bj4Y4Ey6gq0fmncPp-b3hAyRtyQ@mail.gmail.com>

Your column name “column_name” is of type text. The number 255 is an integer.  Since those datatypes don’t match the coalesce function fails.  If the data in “column_name” can always be cast to an integer then you can use

Select coalesce(column_name::integer, 255);

Or you can cast 255 to a text string of ‘255’ with this:

Select coalesce(column_name, '255'::text);


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