diff options
Diffstat (limited to 'storage/innobase/include/data0data.h')
| -rw-r--r-- | storage/innobase/include/data0data.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/storage/innobase/include/data0data.h b/storage/innobase/include/data0data.h index 11e4027777a..f7bdd29ed90 100644 --- a/storage/innobase/include/data0data.h +++ b/storage/innobase/include/data0data.h @@ -154,14 +154,19 @@ dfield_dup( dfield_t* field, /*!< in/out: data field */ mem_heap_t* heap); /*!< in: memory heap where allocated */ /*********************************************************************//** -Tests if data length and content is equal for two dfields. -@return TRUE if equal */ +Tests if two data fields are equal. +If len==0, tests the data length and content for equality. +If len>0, tests the first len bytes of the content for equality. +@return TRUE if both fields are NULL or if they are equal */ UNIV_INLINE ibool dfield_datas_are_binary_equal( /*==========================*/ const dfield_t* field1, /*!< in: field */ - const dfield_t* field2);/*!< in: field */ + const dfield_t* field2, /*!< in: field */ + ulint len) /*!< in: maximum prefix to compare, + or 0 to compare the whole field length */ + __attribute__((nonnull, warn_unused_result)); /*********************************************************************//** Tests if dfield data length and content is equal to the given. @return TRUE if equal */ |