Le 7 juil. 09 à 21:16, Robert Haas a écrit :
Now, here's another thought: if we think it's reasonable for people to want to explicitly specify the join order, a GUC isn't really the best fit, because it's all or nothing. Maybe we'd be better off dropping the GUCs entirely and adding some other bit of syntax that forces the join order, but only for that particular join.

MySQL calls them Straight Joins:
 
http://www.mysqlperformanceblog.com/2006/12/28/mysql-session-variables-and-hints/

I'm not sure our best move here would be in this direction :)
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