Hello.
I've searched in the archives at: http://lists.mysql.com/mysql but the only thing I've found is that the speed difference is rather low. In my opinion, using UNION is a more flexible solution. pow <[EMAIL PROTECTED]> wrote: > Hi everyone, > Take for example two identical tables A & B, and a MERGE table merging > both of them. > Would there be any performance advantage if I do a select (with a where > criteria on an indexed column) on the MERGE table, as opposed to doing a > union of two selects with the same WHERE criteria? > > Many Thanks! > -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.NET http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Gleb Paharenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.NET <___/ www.mysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
