The assumtion that char and varchar can be compared is gone. Any comparison or in this case concatination between the two types needs to be explicitly cast.
try SELECT code::varchar || ' ' || diag::varchar, code FROM dsm4 WHERE axis = 1 ORDER BY code; Thanks Chad ----- Original Message ----- From: "Thomas Good" <[EMAIL PROTECTED]> To: "Postgres SQL List" <[EMAIL PROTECTED]> Sent: Tuesday, March 25, 2003 3:28 PM Subject: [SQL] Concatenation Snafu SELECT code || ' ' || diag, code FROM dsm4 WHERE axis = 1 ORDER BY code; This worked on 6.3-7.3.1 now it dies with: 'unable to identify an operator || for types 'character' and 'character varying' What happened????? ----------------------------------------------------------------------- Thomas Good e-mail: [EMAIL PROTECTED] Programmer/Analyst phone: (+1) 718.818.5528 Residential Services fax: (+1) 718.818.5056 Behavioral Health Services, SVCMC-NY mobile: (+1) 917.282.7359 // Krieg ist selbst Terror - Für Frieden und globale Gerechtigkeit! ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED]) ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org