Hi, When querying a largish (370,000 rows) table, a unique compound index on its three int columns performs slower (as slow as no index at all) than when I use the same index created without the "unique" keyword.
I've repeated it dozens of times: Create the index unique, and it's slow, create it non-unique and it's fast. The EXPLAINs look the same for both. Is this to be expected under some circumstances, or do I get to isolate this messy situation (it's an ugly query) for a bug report? MySQL-3.23.55, Linux, MyISAM. Thanks, --Pete -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]