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-rw-r--r--sql/my_decimal.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/my_decimal.h b/sql/my_decimal.h
index e2f5c95dac2..1ff93c9dab3 100644
--- a/sql/my_decimal.h
+++ b/sql/my_decimal.h
@@ -62,7 +62,7 @@ typedef struct st_mysql_time MYSQL_TIME;
/**
maximum length of string representation (number of maximum decimal
- digits + 1 position for sign + 1 position for decimal point)
+ digits + 1 position for sign + 1 position for decimal point, no terminator)
*/
#define DECIMAL_MAX_STR_LENGTH (DECIMAL_MAX_POSSIBLE_PRECISION + 2)
@@ -243,6 +243,7 @@ inline uint32 my_decimal_precision_to_length(uint precision, uint8 scale,
inline
int my_decimal_string_length(const my_decimal *d)
{
+ /* length of string representation including terminating '\0' */
return decimal_string_size(d);
}