diff options
Diffstat (limited to 'sql/filesort.cc')
| -rw-r--r-- | sql/filesort.cc | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/sql/filesort.cc b/sql/filesort.cc index c03d4a1e31d..26a1ff10e27 100644 --- a/sql/filesort.cc +++ b/sql/filesort.cc @@ -3077,6 +3077,15 @@ int Sort_keys::compare_keys(uchar *a, uchar *b) } +/* + @brief + Compare two packed sort keys with a single keypart + + @retval + >0 key a greater than b + =0 key a equal to b + <0 key a less than b +*/ int Sort_keys::compare_keys_for_single_arg(uchar *a, uchar *b) { SORT_FIELD *sort_field= begin(); @@ -3360,8 +3369,20 @@ int Variable_sized_keys::compare_packed_keys(uchar *a_ptr, uchar *b_ptr) } +int Variable_sized_keys::compare_keys_for_single_arg(uchar *a, uchar *b) +{ + return sort_keys->compare_keys_for_single_arg(a + size_of_length_field, + b + size_of_length_field); +} + + /* - TODO varun: add description + @brief + Make a record with packed values for a key + + @retval + 0 NULL value + >0 length of the packed record */ uint Variable_sized_keys::make_packed_record(bool exclude_nulls) { |