22 #include <drizzled/function/additive_op.h>
23 #include <drizzled/type/decimal.h>
35 void Item_func_additive_op::result_precision()
37 decimals= max(args[0]->decimals, args[1]->decimals);
38 int max_int_part= max(args[0]->decimal_precision() - args[0]->decimals,
39 args[1]->decimal_precision() - args[1]->decimals);
40 int precision= min(max_int_part + 1 + decimals, DECIMAL_MAX_PRECISION);
43 if (result_type() == INT_RESULT)
44 unsigned_flag= args[0]->unsigned_flag | args[1]->unsigned_flag;
46 unsigned_flag= args[0]->unsigned_flag & args[1]->unsigned_flag;
48 max_length= class_decimal_precision_to_length(precision, decimals,