gkodinov/kgeorge@magare.gmz 91455690b5 Bug #31094: Forcing index-based sort doesn't work anymore if joins are done ...

A rule was introduced by the 5.1 part of the fix for bug 27531 to 
prefer filesort over indexed ORDER BY when accessing all of the rows of a 
table (because it's faster). This new rule was not accounting for the 
presence of a LIMIT clause.
Fixed the condition for this rule so it will prefer filesort over 
indexed ORDER BY only if no LIMIT.

2007-10-05 17:28:34 +03:00

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