Commit 2dfa4555 authored by heikki@donna.mysql.fi's avatar heikki@donna.mysql.fi
Browse files

row0ins.c: 

  Allow equal key values in a unique secondary index if the key value contains an SQL NULL
parent c3a881a6

innobase/row/row0ins.c

+17 −2
Original line number Diff line number Diff line
@@ -319,6 +319,7 @@ row_ins_dupl_error_with_rec( 
	ulint	matched_fields;

	ulint	matched_bytes;

	ulint	n_unique;

	ulint   i;

	

	n_unique = dict_index_get_n_unique(index);
@@ -332,6 +333,20 @@ row_ins_dupl_error_with_rec( 
	        return(FALSE);

	}



	/* In a unique secondary index we allow equal key values if they

	contain SQL NULLs */



	if (!(index->type & DICT_CLUSTERED)) {



	        for (i = 0; i < n_unique; i++) {

	                if (UNIV_SQL_NULL == dfield_get_len(

                                         dtuple_get_nth_field(entry, i))) {



	                        return(FALSE);

	                }

	        }

	}



	if (!rec_get_deleted_flag(rec)) {



	        return(TRUE);