item_cmpfunc.cc:
Bug#7834 Illegal mix of collations in IN operator IN was the first function supporting character set convertion. agg_arg_charsets() was written afterwards, which is more flexible. Now IN just reuses this function. sql/item_cmpfunc.cc: Bug#7834 Illegal mix of collations in IN operator IN was the first function supporting character set convertion. agg_arg_charsets() was written afterwards, which is more flexible. Now IN just reuses this function.
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