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-rw-r--r--sql/item_sum.cc6
1 files changed, 4 insertions, 2 deletions
diff --git a/sql/item_sum.cc b/sql/item_sum.cc
index 8098d1aa5e0..f80b89bc828 100644
--- a/sql/item_sum.cc
+++ b/sql/item_sum.cc
@@ -1540,6 +1540,8 @@ void Item_sum_sum::fix_length_and_dec_decimal()
decimals= args[0]->decimals;
/* SUM result can't be longer than length(arg) + length(MAX_ROWS) */
int precision= args[0]->decimal_precision() + DECIMAL_LONGLONG_DIGITS;
+ decimals= MY_MIN(decimals, DECIMAL_MAX_SCALE);
+ precision= MY_MIN(precision, DECIMAL_MAX_PRECISION);
max_length= my_decimal_precision_to_length_no_truncation(precision,
decimals,
unsigned_flag);
@@ -1950,12 +1952,12 @@ void Item_sum_avg::fix_length_and_dec_decimal()
{
Item_sum_sum::fix_length_and_dec_decimal();
int precision= args[0]->decimal_precision() + prec_increment;
- decimals= MY_MIN(args[0]->decimals + prec_increment, DECIMAL_MAX_SCALE);
+ decimals= MY_MIN(args[0]->decimal_scale() + prec_increment, DECIMAL_MAX_SCALE);
max_length= my_decimal_precision_to_length_no_truncation(precision,
decimals,
unsigned_flag);
f_precision= MY_MIN(precision+DECIMAL_LONGLONG_DIGITS, DECIMAL_MAX_PRECISION);
- f_scale= args[0]->decimals;
+ f_scale= args[0]->decimal_scale();
dec_bin_size= my_decimal_get_binary_size(f_precision, f_scale);
}