diff options
Diffstat (limited to 'sql/sql_statistics.cc')
| -rw-r--r-- | sql/sql_statistics.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sql/sql_statistics.cc b/sql/sql_statistics.cc index 3e023767807..0048e525cad 100644 --- a/sql/sql_statistics.cc +++ b/sql/sql_statistics.cc @@ -3757,7 +3757,10 @@ double get_column_avg_frequency(Field * field) using the statistical data from the table column_stats. @retval - The required estimate of the rows in the column range + - The required estimate of the rows in the column range + - If there is some kind of error, this function should return DBL_MAX (and + not HA_POS_ERROR as that is an integer constant). + */ double get_column_range_cardinality(Field *field, |