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Regexp for Mysql 5.1 join Problemby Ben Win Lue (Friar) |
on Jun 12, 2006 at 14:41 UTC ( [id://554821]=perlquestion: print w/replies, xml ) | Need Help?? |
Ben Win Lue has asked for the wisdom of the Perl Monks concerning the following question:
Dear brethren, I am trying to find a Perl fix for a Mysql problem. We are trying to migrate from Mysql 4.0something to Mysql 5.1. Our application has grown organically and is using a couple of thousands of statement of which some have the ugly form:
Statements like this are running with 4.0 smooth but cause errors with 5.1. The problem is caused by the mix of two join syntaxes: comma and "left join". Since most of our statements are executed by a library function, we had the idea of identifying and fixing these statements on the fly. The fix would be transforming the above statement to: which is not causing problems.
Did somebody run already in the same problem and has a neat regexp to identify and fix? Humbly yours
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