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konstantin@mysql.com authoredof <parameter> IS NULL": we must not only set Item::null_value in Item_param, but implement Item_param::is_null() to work well with IS NULL/IS NOT NULL clauses.
6337ea8a
of <parameter> IS NULL": we must not only set Item::null_value in Item_param, but implement Item_param::is_null() to work well with IS NULL/IS NOT NULL clauses.