Sergei Golubchik 7d3288129f create sys_var::val_str(), sys_var::val_int(), sys_var::val_real(). ...

Change Item_func_get_system_var::val_xxx functions to use that.

mysql-test/t/variables.test:
  @@GLOBAL.INIT_CONNECT is never NULL anymore. Nor it ever was.
  It was a bug that empty string system variables appeared as NULL
  in the *integer context* (but not in a string, real, or decimal context!)

2013-04-09 23:27:19 +02:00

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