Bugs item #2103348, was opened at 2008-09-10 10:39 Message generated for change (Comment added) made by stmane You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=482468&aid=2103348&group_id=56967
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: SQL/Core Group: SQL CVS Head Status: Open Resolution: None Priority: 5 Private: No Submitted By: Romulo Goncalves (romulog) Assigned to: Niels Nes (nielsnes) Summary: unique problem with nulls Initial Comment: NULL should not be seen as a value, so UNIQUE constraint check should not fail over several NULL's in the same column. The sql examples are: create table crash_q (q integer,unique (q)); insert into crash_q (q) values (NULL); insert into crash_q (q) values (NULL); insert into crash_q (q) values (1); QUERY = insert into crash_q (q) values (NULL); ERROR = !SQLException:assert:INSERT INTO: UNIQUE constraint 'crash_q.crash_q_q_unique' violated create table crash_q (q integer, x integer,unique (q)) ; insert into crash_q(x) values(1); insert into crash_q(x) values(2); QUERY = insert into crash_q(x) values(2); ERROR = !SQLException:assert:INSERT INTO: UNIQUE constraint 'crash_q.crash_q_q_unique' violated Romulo ---------------------------------------------------------------------- >Comment By: Stefan Manegold (stmane) Date: 2008-09-10 11:17 Message: See also [ 2075241 ] When the NULL is in a column,it shouldn't add primary key http://sourceforge.net/tracker/index.php?func=detail&aid=2075241&group_id=56967&atid=482468 [ 2075180 ] the unique column can't insert more than 1 row with null http://sourceforge.net/tracker/index.php?func=detail&aid=2075180&group_id=56967&atid=482468 [ 1960373 ] kunion and nil http://sourceforge.net/tracker/index.php?func=detail&aid=1960373&group_id=56967&atid=482468 ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=482468&aid=2103348&group_id=56967 ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Monetdb-bugs mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/monetdb-bugs
