Sergey Petrunya 88bf8b9c8f MDEV-5257: MIN/MAX Optimization (Select tables optimized away) does not work for DateTime ...

- MIN/MAX optimizer does a check whether a "field CMP const" comparison uses a constant 
  that's longer than the field it is compared to.  Make this check only for string columns,
  also compare character lengths, not byte lengths.

2013-11-12 17:37:32 +04:00

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