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143 lines
3.6 KiB
Text
143 lines
3.6 KiB
Text
-- source include/have_ndb.inc
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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#
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# Simple test to show use of ordered indexes
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#
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CREATE TABLE t1 (
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a int unsigned NOT NULL PRIMARY KEY,
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b int unsigned not null,
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c int unsigned,
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KEY(b)
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) engine=ndbcluster;
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insert t1 values(1, 2, 3), (2,3, 5), (3, 4, 6), (4, 5, 8), (5,6, 2), (6,7, 2);
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select * from t1 order by b;
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select * from t1 where b >= 4 order by b;
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select * from t1 where b = 4 order by b;
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select * from t1 where b > 4 order by b;
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select * from t1 where b < 4 order by b;
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select * from t1 where b <= 4 order by b;
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#
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# Here we should add some "explain select" to verify that the ordered index is
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# used for these queries.
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#
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#
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# Update using ordered index scan
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#
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update t1 set c = 3 where b = 3;
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select * from t1 order by a;
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update t1 set c = 10 where b >= 6;
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select * from t1 order by a;
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update t1 set c = 11 where b < 5;
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select * from t1 order by a;
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update t1 set c = 12 where b > 0;
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select * from t1 order by a;
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update t1 set c = 13 where b <= 3;
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select * from t1 order by a;
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update t1 set b = b + 1 where b > 4 and b < 7;
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select * from t1 order by a;
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-- Update primary key
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update t1 set a = a + 10 where b > 1 and b < 7;
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select * from t1 order by a;
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#
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# Delete using ordered index scan
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#
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drop table t1;
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CREATE TABLE t1 (
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a int unsigned NOT NULL PRIMARY KEY,
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b int unsigned not null,
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c int unsigned,
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KEY(b)
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) engine=ndbcluster;
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insert t1 values(1, 2, 13), (2,3, 13), (3, 4, 12), (4, 5, 12), (5,6, 12), (6,7, 12);
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delete from t1 where b = 3;
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select * from t1 order by a;
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delete from t1 where b >= 6;
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select * from t1 order by a;
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delete from t1 where b < 4;
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select * from t1 order by a;
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delete from t1 where b > 5;
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select * from t1 order by a;
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delete from t1 where b <= 4;
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select * from t1 order by a;
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drop table t1;
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#
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#multi part key
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#
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CREATE TABLE t1 (
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a int unsigned NOT NULL PRIMARY KEY,
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b int unsigned not null,
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c int unsigned not null
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) engine = ndb;
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create index a1 on t1 (b, c);
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insert into t1 values (1, 2, 13);
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insert into t1 values (2,3, 13);
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insert into t1 values (3, 4, 12);
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insert into t1 values (4, 5, 12);
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insert into t1 values (5,6, 12);
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insert into t1 values (6,7, 12);
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insert into t1 values (7, 2, 1);
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insert into t1 values (8,3, 6);
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insert into t1 values (9, 4, 12);
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insert into t1 values (14, 5, 4);
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insert into t1 values (15,5,5);
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insert into t1 values (16,5, 6);
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insert into t1 values (17,4,4);
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insert into t1 values (18,1, 7);
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select * from t1 order by a;
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select * from t1 where b<=5 order by a;
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select * from t1 where b<=5 and c=0;
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insert into t1 values (19,4, 0);
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select * from t1 where b<=5 and c=0;
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select * from t1 where b=4 and c<=5 order by a;
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select * from t1 where b<=4 and c<=5 order by a;
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select * from t1 where b<=5 and c=0 or b<=5 and c=2;
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select count(*) from t1 where b = 0;
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select count(*) from t1 where b = 1;
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drop table t1;
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#
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# Indexing NULL values
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#
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CREATE TABLE t1 (
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a int unsigned NOT NULL PRIMARY KEY,
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b int unsigned,
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c int unsigned,
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KEY bc(b,c)
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) engine = ndb;
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insert into t1 values(1,1,1),(2,NULL,2),(3,NULL,NULL),(4,4,NULL);
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select * from t1 use index (bc) where b IS NULL order by a;
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select * from t1 use index (bc)order by a;
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select * from t1 use index (bc) order by a;
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select * from t1 use index (PRIMARY) where b IS NULL order by a;
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select * from t1 use index (bc) where b IS NULL order by a;
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select * from t1 use index (bc) where b IS NULL and c IS NULL order by a;
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select * from t1 use index (bc) where b IS NULL and c = 2 order by a;
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select * from t1 use index (bc) where b < 4 order by a;
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select * from t1 use index (bc) where b IS NOT NULL order by a;
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drop table t1;
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