Added NULL value tests for UNIQUE index (bbbfd3e2) · Commits · Software / OSDI20 Artifacts / mariadb

mysql-test/r/ndb_index_unique.result

+45 −0

Original line number	Diff line number	Diff line
		@@ -44,6 +44,51 @@ a b c
		7 8 3
		8 2 3
		drop table t1;
		CREATE TABLE t1 (
		a int unsigned NOT NULL PRIMARY KEY,
		b int unsigned,
		c int unsigned,
		UNIQUE bc(b,c)
		) engine = ndb;
		insert into t1 values(1,1,1),(2,NULL,2),(3,NULL,NULL),(4,4,NULL);
		select * from t1 use index (bc) where b IS NULL order by a;
		a b c
		2 NULL 2
		3 NULL NULL
		select * from t1 use index (bc)order by a;
		a b c
		1 1 1
		2 NULL 2
		3 NULL NULL
		4 4 NULL
		select * from t1 use index (bc) order by a;
		a b c
		1 1 1
		2 NULL 2
		3 NULL NULL
		4 4 NULL
		select * from t1 use index (PRIMARY) where b IS NULL order by a;
		a b c
		2 NULL 2
		3 NULL NULL
		select * from t1 use index (bc) where b IS NULL order by a;
		a b c
		2 NULL 2
		3 NULL NULL
		select * from t1 use index (bc) where b IS NULL and c IS NULL order by a;
		a b c
		select * from t1 use index (bc) where b IS NULL and c = 2 order by a;
		a b c
		select * from t1 use index (bc) where b < 4 order by a;
		a b c
		1 1 1
		select * from t1 use index (bc) where b IS NOT NULL order by a;
		a b c
		1 1 1
		4 4 NULL
		insert into t1 values(5,1,1);
		ERROR 23000: Duplicate entry '5' for key 1
		drop table t1;
		CREATE TABLE t2 (
		a int unsigned NOT NULL PRIMARY KEY,
		b int unsigned not null,

+26 −0

Original line number	Diff line number	Diff line
		@@ -30,6 +30,32 @@ select * from t1 order by a;

		drop table t1;

		#
		# Indexing NULL values
		#

		CREATE TABLE t1 (
		a int unsigned NOT NULL PRIMARY KEY,
		b int unsigned,
		c int unsigned,
		UNIQUE bc(b,c)
		) engine = ndb;

		insert into t1 values(1,1,1),(2,NULL,2),(3,NULL,NULL),(4,4,NULL);
		select * from t1 use index (bc) where b IS NULL order by a;

		select * from t1 use index (bc)order by a;
		select * from t1 use index (bc) order by a;
		select * from t1 use index (PRIMARY) where b IS NULL order by a;
		select * from t1 use index (bc) where b IS NULL order by a;
		select * from t1 use index (bc) where b IS NULL and c IS NULL order by a;
		select * from t1 use index (bc) where b IS NULL and c = 2 order by a;
		select * from t1 use index (bc) where b < 4 order by a;
		select * from t1 use index (bc) where b IS NOT NULL order by a;
		-- error 1062
		insert into t1 values(5,1,1);
		drop table t1;


		#
		# Show use of UNIQUE USING HASH indexes