I have personally found myself somewhat disgusted with MySQL performance when it comes to simple joins. I don't know if this is because I didn't index the tables properly of some inherent disability in MySQL.

Postgres, on the other hand, seems to take the same time to do inner, outer, or whatever style joins with no performance penalty.

So, no, it's not wrong to scan each table one at a time and getting perl to do the intelligent work with MySQL.

In reply to Re: mysql's join too slow; using Perl to compare two tables by monarch
in thread mysql's join too slow; using Perl to compare two tables by Andre_br

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