Re: Multiple-Column Unique Index Redundancy

2003-10-04 Thread Paul DuBois
At 18:06 -0400 10/3/03, John Kornet wrote: I've been over a few books, the site, and the archives... Can someone please confirm that if I create a unique index over 2 columns, it will be redundant to create a regular index for the first? In other words, does the left-prefix rule apply to unique

RE: Multiple-Column Unique Index Redundancy

2003-10-03 Thread Dathan Vance Pattishall
- Dathan Vance Pattishall   - Sr. Programmer and mySQL DBA for FriendFinder Inc.   - http://friendfinder.com/go/p40688 -->-Original Message- -->From: John Kornet [mailto:[EMAIL PROTECTED] -->Sent: Friday, October 03, 2003 3:06 PM -->To: [EMAIL PROTECTED] -->Subject: Multiple-Column Uniq

Re: Multiple-Column Unique Index Redundancy

2003-10-03 Thread Jeremy Zawodny
On Fri, Oct 03, 2003 at 06:06:10PM -0400, John Kornet wrote: > I've been over a few books, the site, and the archives... Can someone > please confirm that if I create a unique index over 2 columns, it will > be redundant to create a regular index for the first? It is redudndant, yes. > In other