The following bug has been logged online: Bug reference: 4021 Logged by: Yann ROBIN Email address: [EMAIL PROTECTED] PostgreSQL version: 8.3.0 build 140 Operating system: Windows XP SP2 Description: UUID NULL and not equal query failed Details:
Hi, I've tried to do a not like query on a UUID field and the row that i'd like to get has a NULL value for the UUID field, it gives me no result. The request : SELECT * FROM t_account WHERE Update_Timestamp > '2008-03-09 12:35:10.309000' AND Update_Timestamp <= '2008-03-09 12:35:37.861000' AND Update_Id != '48012851-3aa4-9940-9ab4-b8333da6b45b' 0 result. The same request without the Update_Id condition : SELECT * FROM t_account WHERE Update_Timestamp > '2008-03-09 12:35:10.309000' AND Update_Timestamp <= '2008-03-09 12:35:37.861000' 1 result. The Update_Id field is null. The same request but with a OR IS NULL condition : SELECT * FROM t_account WHERE Update_Timestamp > '2008-03-09 12:35:10.309000' AND Update_Timestamp <= '2008-03-09 12:35:37.861000' AND (Update_Id != '48012851-3aa4-9940-9ab4-b8333da6b45b' OR Update_Id IS NULL) 1 result. So my conclusion is that the NOT EQUAL operator doesn't match how it should the NULL value field. Is it a bug or a wanted behavior ? -- Yann -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
