diff options
Diffstat (limited to 'innobase/include/rem0rec.h')
| -rw-r--r-- | innobase/include/rem0rec.h | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/innobase/include/rem0rec.h b/innobase/include/rem0rec.h index 69b397c9682..b573c5d4c3b 100644 --- a/innobase/include/rem0rec.h +++ b/innobase/include/rem0rec.h @@ -368,8 +368,9 @@ rec_set_field_extern_bits( /*************************************************************** This is used to modify the value of an already existing field in a record. The previous value must have exactly the same size as the new value. If len -is UNIV_SQL_NULL then the field is treated as an SQL null for old-style -records. For new-style records, len must not be UNIV_SQL_NULL. */ +is UNIV_SQL_NULL then the field is treated as an SQL null. +For records in ROW_FORMAT=COMPACT (new-style records), len must not be +UNIV_SQL_NULL unless the field already is SQL null. */ UNIV_INLINE void rec_set_nth_field( @@ -378,11 +379,7 @@ rec_set_nth_field( const ulint* offsets,/* in: array returned by rec_get_offsets() */ ulint n, /* in: index number of the field */ const void* data, /* in: pointer to the data if not SQL null */ - ulint len); /* in: length of the data or UNIV_SQL_NULL. - If not SQL null, must have the same - length as the previous value. - If SQL null, previous value must be - SQL null. */ + ulint len); /* in: length of the data or UNIV_SQL_NULL */ /************************************************************** The following function returns the data size of an old-style physical record, that is the sum of field lengths. SQL null fields |