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13221b1eb2
The fix was in the call the open_normal_and_derived_tables() from the function mysql_test_select() and it was similar to those from the patch for mdev-13107. Added explicit PREPARE statements that failed in --ps-protocol.
1057 lines
36 KiB
Text
1057 lines
36 KiB
Text
create table t1 (a int, b varchar(32));
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insert into t1 values
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(4,'aaaa' ), (7,'bb'), (1,'ccc'), (4,'dd');
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insert into t1 values
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(3,'eee'), (7,'bb'), (1,'fff'), (4,'ggg');
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create table t2 (c int);
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insert into t2 values
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(2), (4), (5), (3);
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# select certain field in the specification of t
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with t as (select a from t1 where b >= 'c')
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select * from t2,t where t2.c=t.a;
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c a
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4 4
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3 3
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4 4
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select * from t2, (select a from t1 where b >= 'c') as t
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where t2.c=t.a;
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c a
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4 4
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3 3
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4 4
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explain
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with t as (select a from t1 where b >= 'c')
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select * from t2,t where t2.c=t.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ALL NULL NULL NULL NULL 4
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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explain
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select * from t2, (select a from t1 where b >= 'c') as t
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where t2.c=t.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ALL NULL NULL NULL NULL 4
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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# select '*' in the specification of t
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with t as (select * from t1 where b >= 'c')
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select * from t2,t where t2.c=t.a;
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c a b
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4 4 dd
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3 3 eee
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4 4 ggg
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select * from t2, (select * from t1 where b >= 'c') as t
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where t2.c=t.a;
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c a b
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4 4 dd
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3 3 eee
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4 4 ggg
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explain
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with t as (select * from t1 where b >= 'c')
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select * from t2,t where t2.c=t.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ALL NULL NULL NULL NULL 4
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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explain
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select * from t2, (select * from t1 where b >= 'c') as t
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where t2.c=t.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ALL NULL NULL NULL NULL 4
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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# rename fields returned by the specication when defining t
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with t(f1,f2) as (select * from t1 where b >= 'c')
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select * from t2,t where t2.c=t.f1;
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c f1 f2
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4 4 dd
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3 3 eee
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4 4 ggg
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explain
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with t(f1,f2) as (select * from t1 where b >= 'c')
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select * from t2,t where t2.c=t.f1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ALL NULL NULL NULL NULL 4
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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# materialized query specifying t
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with t as (select a, count(*) from t1 where b >= 'c' group by a)
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select * from t2,t where t2.c=t.a;
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c a count(*)
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4 4 2
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3 3 1
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select * from t2, (select a, count(*) from t1 where b >= 'c' group by a) as t
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where t2.c=t.a;
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c a count(*)
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4 4 2
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3 3 1
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explain
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with t as (select a, count(*) from t1 where b >= 'c' group by a)
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select * from t2,t where t2.c=t.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
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1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 2
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2 SUBQUERY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
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explain
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select * from t2, (select a, count(*) from t1 where b >= 'c' group by a) as t
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where t2.c=t.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
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1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 2
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2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
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# specivication of t contains having
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with t as (select a, count(*) from t1 where b >= 'c'
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group by a having count(*)=1 )
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select * from t2,t where t2.c=t.a;
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c a count(*)
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3 3 1
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select * from t2, (select a, count(*) from t1 where b >= 'c'
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group by a having count(*)=1) t
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where t2.c=t.a;
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c a count(*)
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3 3 1
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# main query contains having
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with t as (select * from t2 where c <= 4)
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select a, count(*) from t1,t where t1.a=t.c group by a having count(*)=1;
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a count(*)
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3 1
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select a, count(*) from t1, (select * from t2 where c <= 4) t
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where t1.a=t.c group by a having count(*)=1;
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a count(*)
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3 1
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# main query contains group by + order by
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with t as (select * from t2 where c <= 4 )
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select a, count(*) from t1,t where t1.a=t.c group by a order by count(*);
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a count(*)
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3 1
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4 3
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select a, count(*) from t1, (select * from t2 where c <= 4 ) t
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where t1.a=t.c group by a order by count(*);
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a count(*)
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3 1
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4 3
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# main query contains group by + order by + limit
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with t as (select * from t2 where c <= 4 )
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select a, count(*) from t1,t
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where t1.a=t.c group by a order by count(*) desc limit 1;
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a count(*)
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4 3
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select a, count(*) from t1, (select * from t2 where c <= 4 ) t
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where t1.a=t.c group by a order by count(*) desc limit 1;
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a count(*)
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4 3
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# t is used in a subquery
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with t as (select a from t1 where a<5)
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select * from t2 where c in (select a from t);
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c
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4
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3
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select * from t2
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where c in (select a from (select a from t1 where a<5) as t);
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c
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4
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3
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explain
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with t as (select a from t1 where a<5)
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select * from t2 where c in (select a from t);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4
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1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
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3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where
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explain
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select * from t2
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where c in (select a from (select a from t1 where a<5) as t);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4
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1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
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2 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where
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# materialized t is used in a subquery
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with t as (select count(*) as c from t1 where b >= 'c' group by a)
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select * from t2 where c in (select c from t);
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c
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2
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select * from t2
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where c in (select c from (select count(*) as c from t1
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where b >= 'c' group by a) as t);
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c
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2
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explain
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with t as (select count(*) as c from t1 where b >= 'c' group by a)
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select * from t2 where c in (select c from t);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
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1 PRIMARY <derived2> ref key0 key0 8 test.t2.c 2 Using where; FirstMatch(t2)
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2 SUBQUERY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
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explain
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select * from t2
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where c in (select c from (select count(*) as c from t1
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where b >= 'c' group by a) as t);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
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1 PRIMARY <derived3> ref key0 key0 8 test.t2.c 2 Using where; FirstMatch(t2)
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3 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
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# two references to t specified by a query
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# selecting a field: both in main query
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with t as (select a from t1 where b >= 'c')
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select * from t as r1, t as r2 where r1.a=r2.a;
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a a
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1 1
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1 1
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4 4
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4 4
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3 3
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1 1
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1 1
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4 4
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4 4
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select * from (select a from t1 where b >= 'c') as r1,
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(select a from t1 where b >= 'c') as r2
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where r1.a=r2.a;
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a a
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1 1
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1 1
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4 4
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4 4
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3 3
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1 1
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1 1
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4 4
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4 4
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explain
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with t as (select a from t1 where b >= 'c')
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select * from t as r1, t as r2 where r1.a=r2.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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explain
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select * from (select a from t1 where b >= 'c') as r1,
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(select a from t1 where b >= 'c') as r2
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where r1.a=r2.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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# two references to materialized t: both in main query
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with t as (select distinct a from t1 where b >= 'c')
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select * from t as r1, t as r2 where r1.a=r2.a;
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a a
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1 1
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4 4
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3 3
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select * from (select distinct a from t1 where b >= 'c') as r1,
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(select distinct a from t1 where b >= 'c') as r2
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where r1.a=r2.a;
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a a
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1 1
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4 4
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3 3
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explain
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with t as (select distinct a from t1 where b >= 'c')
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select * from t as r1, t as r2 where r1.a=r2.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 8 Using where
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1 PRIMARY <derived3> ref key0 key0 5 r1.a 2
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3 SUBQUERY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary
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2 SUBQUERY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary
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explain
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select * from (select distinct a from t1 where b >= 'c') as r1,
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(select distinct a from t1 where b >= 'c') as r2
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where r1.a=r2.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 8 Using where
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1 PRIMARY <derived3> ref key0 key0 5 r1.a 2
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3 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary
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2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary
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# two references to t specified by a query
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# selecting all fields: both in main query
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with t as (select * from t1 where b >= 'c')
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select * from t as r1, t as r2 where r1.a=r2.a;
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a b a b
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1 ccc 1 ccc
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1 fff 1 ccc
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4 dd 4 dd
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4 ggg 4 dd
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3 eee 3 eee
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1 ccc 1 fff
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1 fff 1 fff
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4 dd 4 ggg
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4 ggg 4 ggg
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select * from (select * from t1 where b >= 'c') as r1,
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(select * from t1 where b >= 'c') as r2
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where r1.a=r2.a;
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a b a b
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1 ccc 1 ccc
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1 fff 1 ccc
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4 dd 4 dd
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4 ggg 4 dd
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3 eee 3 eee
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1 ccc 1 fff
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1 fff 1 fff
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4 dd 4 ggg
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4 ggg 4 ggg
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explain
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with t as (select * from t1 where b >= 'c')
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select * from t as r1, t as r2 where r1.a=r2.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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explain
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select * from (select * from t1 where b >= 'c') as r1,
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(select * from t1 where b >= 'c') as r2
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where r1.a=r2.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
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1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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# two references to t specifying explicitly column names
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with t(c) as (select a from t1 where b >= 'c')
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select * from t r1, t r2 where r1.c=r2.c;
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c c
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1 1
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1 1
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4 4
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4 4
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3 3
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1 1
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1 1
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4 4
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4 4
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# t two references of t used in different parts of a union
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with t as (select a from t1 where b >= 'c')
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select * from t where a < 2
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union
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select * from t where a >= 4;
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a
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1
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4
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select * from (select a from t1 where b >= 'c') as t
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where t.a < 2
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union
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select * from (select a from t1 where b >= 'c') as t
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where t.a >= 4;
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a
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1
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4
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explain
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with t as (select a from t1 where b >= 'c')
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select * from t where a < 2
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union
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select * from t where a >= 4;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where
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3 UNION t1 ALL NULL NULL NULL NULL 8 Using where
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NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL
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explain
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select * from (select a from t1 where b >= 'c') as t
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where t.a < 2
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union
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select * from (select a from t1 where b >= 'c') as t
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where t.a >= 4;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where
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3 UNION t1 ALL NULL NULL NULL NULL 8 Using where
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NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL
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# specification of t contains union
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with t as (select a from t1 where b >= 'f'
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union
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select c as a from t2 where c < 4)
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select * from t2,t where t2.c=t.a;
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c a
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2 2
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4 4
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3 3
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select * from t2,
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(select a from t1 where b >= 'f'
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union
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select c as a from t2 where c < 4) as t
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where t2.c=t.a;
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c a
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2 2
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4 4
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3 3
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explain
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with t as (select a from t1 where b >= 'f'
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union
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select c as a from t2 where c < 4)
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select * from t2,t where t2.c=t.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
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1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 2
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2 SUBQUERY t1 ALL NULL NULL NULL NULL 8 Using where
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3 UNION t2 ALL NULL NULL NULL NULL 4 Using where
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NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
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explain
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select * from t2,
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(select a from t1 where b >= 'f'
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union
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select c as a from t2 where c < 4) as t
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where t2.c=t.a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
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1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 2
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2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where
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3 UNION t2 ALL NULL NULL NULL NULL 4 Using where
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NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
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# t is defined in the with clause of a subquery
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select t1.a,t1.b from t1,t2
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where t1.a>t2.c and
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t2.c in (with t as (select * from t1 where t1.a<5)
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select t2.c from t2,t where t2.c=t.a);
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a b
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4 aaaa
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7 bb
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7 bb
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4 dd
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7 bb
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7 bb
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4 ggg
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select t1.a,t1.b from t1,t2
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where t1.a>t2.c and
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t2.c in (select t2.c
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from t2,(select * from t1 where t1.a<5) as t
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where t2.c=t.a);
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a b
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4 aaaa
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7 bb
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7 bb
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4 dd
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7 bb
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7 bb
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4 ggg
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explain
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select t1.a,t1.b from t1,t2
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where t1.a>t2.c and
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t2.c in (with t as (select * from t1 where t1.a<5)
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select t2.c from t2,t where t2.c=t.a);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4
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1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
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1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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2 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
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2 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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explain
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select t1.a,t1.b from t1,t2
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where t1.a>t2.c and
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t2.c in (select t2.c
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from t2,(select * from t1 where t1.a<5) as t
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where t2.c=t.a);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 4
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1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
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1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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2 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
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2 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
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# two different definitions of t: one in the with clause of the main query,
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# the other in the with clause of a subquery
|
|
with t as (select c from t2 where c >= 4)
|
|
select t1.a,t1.b from t1,t
|
|
where t1.a=t.c and
|
|
t.c in (with t as (select * from t1 where t1.a<5)
|
|
select t2.c from t2,t where t2.c=t.a);
|
|
a b
|
|
4 aaaa
|
|
4 dd
|
|
4 ggg
|
|
select t1.a,t1.b from t1, (select c from t2 where c >= 4) as t
|
|
where t1.a=t.c and
|
|
t.c in (select t2.c from t2, (select * from t1 where t1.a<5) as t
|
|
where t2.c=t.a);
|
|
a b
|
|
4 aaaa
|
|
4 dd
|
|
4 ggg
|
|
explain
|
|
with t as (select c from t2 where c >= 4)
|
|
select t1.a,t1.b from t1,t
|
|
where t1.a=t.c and
|
|
t.c in (with t as (select * from t1 where t1.a<5)
|
|
select t2.c from t2,t where t2.c=t.a);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
|
|
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
|
|
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
explain
|
|
select t1.a,t1.b from t1, (select c from t2 where c >= 4) as t
|
|
where t1.a=t.c and
|
|
t.c in (select t2.c from t2, (select * from t1 where t1.a<5) as t
|
|
where t2.c=t.a);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
|
|
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
|
|
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
# another with table tt is defined in the with clause of a subquery
|
|
# from the specification of t
|
|
with t as (select * from t1
|
|
where a>2 and
|
|
b in (with tt as (select * from t2 where t2.c<5)
|
|
select t1.b from t1,tt where t1.a=tt.c))
|
|
select t.a, count(*) from t1,t where t1.a=t.a group by t.a;
|
|
a count(*)
|
|
3 1
|
|
4 9
|
|
select t.a, count(*)
|
|
from t1,
|
|
(select * from t1
|
|
where a>2 and
|
|
b in (select t1.b
|
|
from t1,
|
|
(select * from t2 where t2.c<5) as tt
|
|
where t1.a=tt.c)) as t
|
|
where t1.a=t.a group by t.a;
|
|
a count(*)
|
|
3 1
|
|
4 9
|
|
explain
|
|
with t as (select * from t1
|
|
where a>2 and
|
|
b in (with tt as (select * from t2 where t2.c<5)
|
|
select t1.b from t1,tt where t1.a=tt.c))
|
|
select t.a, count(*) from t1,t where t1.a=t.a group by t.a;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 35 func 1
|
|
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
|
|
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
explain
|
|
select t.a, count(*)
|
|
from t1,
|
|
(select * from t1
|
|
where a>2 and
|
|
b in (select t1.b
|
|
from t1,
|
|
(select * from t2 where t2.c<5) as tt
|
|
where t1.a=tt.c)) as t
|
|
where t1.a=t.a group by t.a;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 35 func 1
|
|
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
|
|
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
# with clause in the specification of a derived table
|
|
select *
|
|
from t1,
|
|
(with t as (select a from t1 where b >= 'c')
|
|
select * from t2,t where t2.c=t.a) as tt
|
|
where t1.b > 'f' and tt.a=t1.a;
|
|
a b c a
|
|
4 ggg 4 4
|
|
4 ggg 4 4
|
|
select *
|
|
from t1,
|
|
(select * from t2,
|
|
(select a from t1 where b >= 'c') as t
|
|
where t2.c=t.a) as tt
|
|
where t1.b > 'f' and tt.a=t1.a;
|
|
a b c a
|
|
4 ggg 4 4
|
|
4 ggg 4 4
|
|
explain
|
|
select *
|
|
from t1,
|
|
(with t as (select a from t1 where b >= 'c')
|
|
select * from t2,t where t2.c=t.a) as tt
|
|
where t1.b > 'f' and tt.a=t1.a;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t2 ALL NULL NULL NULL NULL 4
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (incremental, BNL join)
|
|
explain
|
|
select *
|
|
from t1,
|
|
(select * from t2,
|
|
(select a from t1 where b >= 'c') as t
|
|
where t2.c=t.a) as tt
|
|
where t1.b > 'f' and tt.a=t1.a;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t2 ALL NULL NULL NULL NULL 4
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (incremental, BNL join)
|
|
# with claused in the specification of a view
|
|
create view v1 as
|
|
with t as (select a from t1 where b >= 'c')
|
|
select * from t2,t where t2.c=t.a;
|
|
show create view v1;
|
|
View Create View character_set_client collation_connection
|
|
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS with t as (select `t1`.`a` AS `a` from `t1` where `t1`.`b` >= 'c')select `t2`.`c` AS `c`,`t`.`a` AS `a` from (`t2` join `t`) where `t2`.`c` = `t`.`a` latin1 latin1_swedish_ci
|
|
select * from v1;
|
|
c a
|
|
4 4
|
|
3 3
|
|
4 4
|
|
explain
|
|
select * from v1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t2 ALL NULL NULL NULL NULL 4
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
# with claused in the specification of a materialized view
|
|
create view v2 as
|
|
with t as (select a, count(*) from t1 where b >= 'c' group by a)
|
|
select * from t2,t where t2.c=t.a;
|
|
show create view v2;
|
|
View Create View character_set_client collation_connection
|
|
v2 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v2` AS with t as (select `t1`.`a` AS `a`,count(0) AS `count(*)` from `t1` where `t1`.`b` >= 'c' group by `t1`.`a`)select `t2`.`c` AS `c`,`t`.`a` AS `a`,`t`.`count(*)` AS `count(*)` from (`t2` join `t`) where `t2`.`c` = `t`.`a` latin1 latin1_swedish_ci
|
|
select * from v2;
|
|
c a count(*)
|
|
4 4 2
|
|
3 3 1
|
|
explain
|
|
select * from v2;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
|
|
1 PRIMARY <derived3> ref key0 key0 5 test.t2.c 2
|
|
3 SUBQUERY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
|
|
# with clause in the specification of a view that whose definition
|
|
# table alias for a with table
|
|
create view v3 as
|
|
with t(c) as (select a from t1 where b >= 'c')
|
|
select * from t r1 where r1.c=4;
|
|
show create view v3;
|
|
View Create View character_set_client collation_connection
|
|
v3 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v3` AS with t as (select `t1`.`a` AS `c` from `t1` where `t1`.`b` >= 'c')select `r1`.`c` AS `c` from `t` `r1` where `r1`.`c` = 4 latin1 latin1_swedish_ci
|
|
select * from v3;
|
|
c
|
|
4
|
|
4
|
|
# with clause in the specification of a view that whose definition
|
|
# two table aliases for for the same with table
|
|
create view v4(c,d) as
|
|
with t(c) as (select a from t1 where b >= 'c')
|
|
select * from t r1, t r2 where r1.c=r2.c and r2.c=4;
|
|
show create view v4;
|
|
View Create View character_set_client collation_connection
|
|
v4 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v4` AS with t as (select `t1`.`a` AS `c` from `t1` where `t1`.`b` >= 'c')select `r1`.`c` AS `c`,`r2`.`c` AS `d` from (`t` `r1` join `t` `r2`) where `r1`.`c` = `r2`.`c` and `r2`.`c` = 4 latin1 latin1_swedish_ci
|
|
select * from v4;
|
|
c d
|
|
4 4
|
|
4 4
|
|
4 4
|
|
4 4
|
|
explain
|
|
select * from v4;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
drop view v1,v2,v3,v4;
|
|
# currently any views containing with clause are not updatable
|
|
create view v1(a) as
|
|
with t as (select a from t1 where b >= 'c')
|
|
select t.a from t2,t where t2.c=t.a;
|
|
update v1 set a=0 where a > 4;
|
|
ERROR HY000: The target table v1 of the UPDATE is not updatable
|
|
drop view v1;
|
|
# prepare of a query containing a definition of a with table t
|
|
prepare stmt1 from "
|
|
with t as (select a from t1 where b >= 'c')
|
|
select * from t2,t where t2.c=t.a;
|
|
";
|
|
execute stmt1;
|
|
c a
|
|
4 4
|
|
3 3
|
|
4 4
|
|
execute stmt1;
|
|
c a
|
|
4 4
|
|
3 3
|
|
4 4
|
|
deallocate prepare stmt1;
|
|
# prepare of a query containing a definition of a materialized t
|
|
prepare stmt1 from "
|
|
with t as (select a, count(*) from t1 where b >= 'c' group by a)
|
|
select * from t2,t where t2.c=t.a;
|
|
";
|
|
execute stmt1;
|
|
c a count(*)
|
|
4 4 2
|
|
3 3 1
|
|
execute stmt1;
|
|
c a count(*)
|
|
4 4 2
|
|
3 3 1
|
|
deallocate prepare stmt1;
|
|
# prepare of a query containing two references to with table t
|
|
prepare stmt1 from "
|
|
with t as (select * from t1 where b >= 'c')
|
|
select * from t as r1, t as r2 where r1.a=r2.a;
|
|
";
|
|
execute stmt1;
|
|
a b a b
|
|
1 ccc 1 ccc
|
|
1 fff 1 ccc
|
|
4 dd 4 dd
|
|
4 ggg 4 dd
|
|
3 eee 3 eee
|
|
1 ccc 1 fff
|
|
1 fff 1 fff
|
|
4 dd 4 ggg
|
|
4 ggg 4 ggg
|
|
execute stmt1;
|
|
a b a b
|
|
1 ccc 1 ccc
|
|
1 fff 1 ccc
|
|
4 dd 4 dd
|
|
4 ggg 4 dd
|
|
3 eee 3 eee
|
|
1 ccc 1 fff
|
|
1 fff 1 fff
|
|
4 dd 4 ggg
|
|
4 ggg 4 ggg
|
|
deallocate prepare stmt1;
|
|
with t(f) as (select * from t1 where b >= 'c')
|
|
select * from t2,t where t2.c=t.f1;
|
|
ERROR HY000: WITH column list and SELECT field list have different column counts
|
|
with t(f1,f1) as (select * from t1 where b >= 'c')
|
|
select * from t2,t where t2.c=t.f1;
|
|
ERROR 42S21: Duplicate column name 'f1'
|
|
with t as (select * from t2 where c>3),
|
|
t as (select a from t1 where a>2)
|
|
select * from t,t1 where t1.a=t.c;
|
|
ERROR HY000: Duplicate query name in WITH clause
|
|
with t as (select a from s where a<5),
|
|
s as (select a from t1 where b>='d')
|
|
select * from t,s where t.a=s.a;
|
|
ERROR 42S02: Table 'test.s' doesn't exist
|
|
with recursive
|
|
t as (select a from s where a<5),
|
|
s as (select a from t1 where b>='d')
|
|
select * from t,s where t.a=s.a;
|
|
a a
|
|
4 4
|
|
4 4
|
|
3 3
|
|
1 1
|
|
4 4
|
|
4 4
|
|
with recursive t as (select * from s where a>2),
|
|
s as (select a from t1,r where t1.a>r.c),
|
|
r as (select c from t,t2 where t.a=t2.c)
|
|
select * from r where r.c<7;
|
|
ERROR HY000: No anchors for recursive WITH element 't'
|
|
with recursive
|
|
t as (select * from s where a>2),
|
|
s as (select a from t1,r where t1.a>r.c),
|
|
r as (select c from t,t2 where t.a=t2.c)
|
|
select * from r where r.c<7;
|
|
ERROR HY000: No anchors for recursive WITH element 't'
|
|
with recursive
|
|
t as (select * from t1
|
|
where a in (select c from s where b<='ccc') and b>'b'),
|
|
s as (select * from t1,t2
|
|
where t1.a=t2.c and t1.c in (select a from t where a<5))
|
|
select * from s where s.b>'aaa';
|
|
ERROR HY000: No anchors for recursive WITH element 't'
|
|
with recursive
|
|
t as (select * from t1 where b>'aaa' and b <='d')
|
|
select t.b from t,t2
|
|
where t.a=t2.c and
|
|
t2.c in (with recursive
|
|
s as (select t1.a from s,t1 where t1.a=s.a and t1.b<'c')
|
|
select * from s);
|
|
ERROR HY000: No anchors for recursive WITH element 's'
|
|
#erroneous definition of unreferenced with table t
|
|
with t as (select count(*) from t1 where d>='f' group by a)
|
|
select t1.b from t2,t1 where t1.a = t2.c;
|
|
ERROR 42S22: Unknown column 'd' in 'where clause'
|
|
with t as (select count(*) from t1 where b>='f' group by a)
|
|
select t1.b from t2,t1 where t1.a = t2.c;
|
|
b
|
|
aaaa
|
|
dd
|
|
eee
|
|
ggg
|
|
#erroneous definition of s referring to unreferenced t
|
|
with t(d) as (select count(*) from t1 where b<='ccc' group by b),
|
|
s as (select * from t1 where a in (select t2.d from t2,t where t2.c=t.d))
|
|
select t1.b from t1,t2 where t1.a=t2.c;
|
|
ERROR 42S22: Unknown column 't2.d' in 'field list'
|
|
with t(d) as (select count(*) from t1 where b<='ccc' group by b),
|
|
s as (select * from t1 where a in (select t2.c from t2,t where t2.c=t.c))
|
|
select t1.b from t1,t2 where t1.a=t2.c;
|
|
ERROR 42S22: Unknown column 't.c' in 'where clause'
|
|
with t(d) as (select count(*) from t1 where b<='ccc' group by b),
|
|
s as (select * from t1 where a in (select t2.c from t2,t where t2.c=t.d))
|
|
select t1.b from t1,t2 where t1.a=t2.c;
|
|
b
|
|
aaaa
|
|
dd
|
|
eee
|
|
ggg
|
|
#erroneous definition of unreferenced with table t
|
|
with t(f) as (select * from t1 where b >= 'c')
|
|
select t1.b from t2,t1 where t1.a = t2.c;
|
|
ERROR HY000: WITH column list and SELECT field list have different column counts
|
|
#erroneous definition of unreferenced with table t
|
|
with t(f1,f1) as (select * from t1 where b >= 'c')
|
|
select t1.b from t2,t1 where t1.a = t2.c;
|
|
ERROR 42S21: Duplicate column name 'f1'
|
|
# explain for query with unreferenced with table
|
|
explain
|
|
with t as (select a from t1 where b >= 'c')
|
|
select t1.b from t2,t1 where t1.a = t2.c;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 4
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
explain
|
|
with t as (select a, count(*) from t1 where b >= 'c' group by a)
|
|
select t1.b from t2,t1 where t1.a = t2.c;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 4
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
|
|
# too many with elements in with clause
|
|
with s65 as (select * from t1), s64 as (select * from t1) , s63 as (select * from t1) , s62 as (select * from t1) , s61 as (select * from t1) , s60 as (select * from t1) , s59 as (select * from t1) , s58 as (select * from t1) , s57 as (select * from t1) , s56 as (select * from t1) , s55 as (select * from t1) , s54 as (select * from t1) , s53 as (select * from t1) , s52 as (select * from t1) , s51 as (select * from t1) , s50 as (select * from t1) , s49 as (select * from t1) , s48 as (select * from t1) , s47 as (select * from t1) , s46 as (select * from t1) , s45 as (select * from t1) , s44 as (select * from t1) , s43 as (select * from t1) , s42 as (select * from t1) , s41 as (select * from t1) , s40 as (select * from t1) , s39 as (select * from t1) , s38 as (select * from t1) , s37 as (select * from t1) , s36 as (select * from t1) , s35 as (select * from t1) , s34 as (select * from t1) , s33 as (select * from t1) , s32 as (select * from t1) , s31 as (select * from t1) , s30 as (select * from t1) , s29 as (select * from t1) , s28 as (select * from t1) , s27 as (select * from t1) , s26 as (select * from t1) , s25 as (select * from t1) , s24 as (select * from t1) , s23 as (select * from t1) , s22 as (select * from t1) , s21 as (select * from t1) , s20 as (select * from t1) , s19 as (select * from t1) , s18 as (select * from t1) , s17 as (select * from t1) , s16 as (select * from t1) , s15 as (select * from t1) , s14 as (select * from t1) , s13 as (select * from t1) , s12 as (select * from t1) , s11 as (select * from t1) , s10 as (select * from t1) , s9 as (select * from t1) , s8 as (select * from t1) , s7 as (select * from t1) , s6 as (select * from t1) , s5 as (select * from t1) , s4 as (select * from t1) , s3 as (select * from t1) , s2 as (select * from t1) , s1 as (select * from t1) select * from s65;
|
|
ERROR HY000: Too many WITH elements in WITH clause
|
|
drop table t1,t2;
|
|
#
|
|
# Bug mdev-9937: View used in the specification of with table
|
|
# refers to the base table with the same name
|
|
#
|
|
create table t1 (a int);
|
|
insert into t1 values (20), (30), (10);
|
|
create view v1 as select * from t1 where a > 10;
|
|
with t1 as (select * from v1) select * from t1;
|
|
a
|
|
20
|
|
30
|
|
drop view v1;
|
|
drop table t1;
|
|
#
|
|
# Bug mdev-10058: Invalid derived table with WITH clause
|
|
#
|
|
CREATE TABLE t1 (a INT);
|
|
CREATE TABLE t2 (a INT);
|
|
CREATE TABLE t3 (a INT);
|
|
INSERT INTO t1 VALUES (1),(2),(3);
|
|
INSERT INTO t2 VALUES (1),(2),(3);
|
|
INSERT INTO t3 VALUES (1),(2),(3);
|
|
SELECT * FROM (WITH a AS (SELECT * FROM t1) (t2 NATURAL JOIN t3));
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 't2 NATURAL JOIN t3))' at line 1
|
|
SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT * FROM t2 NATURAL JOIN t3) AS d1;
|
|
a
|
|
1
|
|
2
|
|
3
|
|
DROP TABLE t1,t2,t3;
|
|
#
|
|
# Bug mdev-10344: the WITH clause of the query refers to a view that uses
|
|
# a base table with the same name as a CTE table from the clause
|
|
#
|
|
create table ten(a int primary key);
|
|
insert into ten values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
create table one_k(a int primary key);
|
|
insert into one_k select A.a + B.a* 10 + C.a * 100 from ten A, ten B, ten C;
|
|
create view v1 as select * from ten;
|
|
select * from v1;
|
|
a
|
|
0
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
6
|
|
7
|
|
8
|
|
9
|
|
drop view v1;
|
|
drop table ten, one_k;
|
|
#
|
|
# MDEV-10057 : Crash with EXPLAIN + WITH + constant query
|
|
#
|
|
CREATE TABLE t1 (a INT);
|
|
INSERT INTO t1 VALUES (1),(2),(3);
|
|
SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT 1) AS t1;
|
|
1
|
|
1
|
|
EXPLAIN SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT 1) AS t1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY <derived2> system NULL NULL NULL NULL 1
|
|
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL No tables used
|
|
DROP TABLE t1;
|
|
#
|
|
# MDEV-10058: Suspicious EXPLAIN output for a derived table + WITH + joined table
|
|
#
|
|
CREATE TABLE t1 (a INT);
|
|
CREATE TABLE t2 (a INT);
|
|
CREATE TABLE t3 (a INT);
|
|
INSERT INTO t1 VALUES (1),(2),(3);
|
|
INSERT INTO t2 VALUES (1),(2),(3);
|
|
INSERT INTO t3 VALUES (1),(2),(3);
|
|
EXPLAIN SELECT * FROM (WITH a AS (SELECT * FROM t1) (t2 NATURAL JOIN t3));
|
|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 't2 NATURAL JOIN t3))' at line 1
|
|
explain SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT * FROM t2 NATURAL JOIN t3) AS d1;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t2 ALL NULL NULL NULL NULL 3
|
|
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
|
|
DROP TABLE t1,t2,t3;
|
|
#
|
|
# MDEV-10729: Server crashes in st_select_lex::set_explain_type
|
|
#
|
|
CREATE TABLE t1 (i1 INT, KEY(i1)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (4),(8);
|
|
CREATE TABLE t2 (a2 INT, b2 INT, KEY(b2)) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (8,7);
|
|
CREATE TABLE t3 (i3 INT) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES (2),(6);
|
|
SELECT * FROM t1, t2 WHERE a2 = i1 and b2 >= i1 AND i1 IN ( SELECT i3 FROM t3 )
|
|
UNION
|
|
SELECT * FROM t1, t2 WHERE a2 = i1 and b2 >= i1 AND i1 IN ( SELECT i3 FROM t3 )
|
|
;
|
|
i1 a2 b2
|
|
DROP TABLE t1,t2,t3;
|
|
#
|
|
# MDEV-10923: mergeable CTE used twice in the query
|
|
#
|
|
create table employees (
|
|
name varchar(32),
|
|
dept varchar(32),
|
|
country varchar(8)
|
|
);
|
|
insert into employees
|
|
values
|
|
('Sergei Golubchik', 'Development', 'DE'),
|
|
('Claudio Nanni', 'Support', 'ES'),
|
|
('Sergei Petrunia', 'Development', 'RU');
|
|
with eng as
|
|
(
|
|
select * from employees
|
|
where dept in ('Development','Support')
|
|
),
|
|
eu_eng as
|
|
(
|
|
select * from eng where country IN ('DE','ES','RU')
|
|
)
|
|
select * from eu_eng T1
|
|
where
|
|
not exists (select 1 from eu_eng T2
|
|
where T2.country=T1.country
|
|
and T2.name <> T1.name);
|
|
name dept country
|
|
Sergei Golubchik Development DE
|
|
Claudio Nanni Support ES
|
|
Sergei Petrunia Development RU
|
|
drop table employees;
|
|
#
|
|
# MDEV-11818: EXPLAIN EXTENDED for a query with optimized away CTE table
|
|
#
|
|
CREATE TABLE t1 (i INT, c VARCHAR(3));
|
|
INSERT INTO t1 VALUES (1,'foo');
|
|
EXPLAIN EXTENDED
|
|
WITH cte AS ( SELECT * FROM t1 ) SELECT i FROM cte;
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
|
|
Warnings:
|
|
Note 1003 with cte as (select `test`.`t1`.`i` AS `i`,`test`.`t1`.`c` AS `c` from `test`.`t1`)select 1 AS `i` from dual
|
|
DROP TABLE t1;
|
|
#
|
|
# MDEV-12185: view defintion contains WITH clause with
|
|
# several specifications of CTE
|
|
#
|
|
with
|
|
alias1 as (select 1 as one),
|
|
alias2 as (select 2 as two)
|
|
select one, two from alias1, alias2;
|
|
one two
|
|
1 2
|
|
create view v1 as
|
|
with
|
|
alias1 as (select 1 as one),
|
|
alias2 as (select 2 as two)
|
|
select one, two from alias1, alias2;
|
|
select * from v1;
|
|
one two
|
|
1 2
|
|
show create view v1;
|
|
View Create View character_set_client collation_connection
|
|
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS with alias1 as (select 1 AS `one`), alias2 as (select 2 AS `two`)select `alias1`.`one` AS `one`,`alias2`.`two` AS `two` from (`alias1` join `alias2`) latin1 latin1_swedish_ci
|
|
drop view v1;
|
|
#
|
|
# MDEV-12440: the same CTE table is used twice
|
|
#
|
|
create table t1 (a int, b varchar(32));
|
|
insert into t1 values
|
|
(4,'aaaa' ), (7,'bb'), (1,'ccc'), (4,'dd');
|
|
# cte2 is used in the main query and in the spec for ct3
|
|
with
|
|
cte1 as (select * from t1 where b >= 'c'),
|
|
cte2 as (select * from cte1 where a < 7),
|
|
cte3 as (select * from cte2 where a > 1)
|
|
select * from cte2, cte3 where cte2.a = cte3.a;
|
|
a b a b
|
|
4 dd 4 dd
|
|
# cte2 is used twice in the spec for ct3
|
|
with
|
|
cte1 as (select * from t1 where b >= 'b'),
|
|
cte2 as (select * from cte1 where b > 'c'),
|
|
cte3 as (select * from cte2 where a > 1 union select * from cte2 where a > 1)
|
|
select * from cte3;
|
|
a b
|
|
4 dd
|
|
drop table t1;
|
|
#
|
|
# MDEV-12558: CTE with the same name as temporary table
|
|
#
|
|
CREATE TABLE t ENGINE=MyISAM AS SELECT 1 AS i;
|
|
CREATE TEMPORARY TABLE cte ENGINE=MyISAM AS SELECT 2 AS f;
|
|
WITH cte AS ( SELECT i FROM t ) SELECT * FROM cte;
|
|
i
|
|
1
|
|
WITH cte AS ( SELECT i FROM t GROUP BY i) SELECT * FROM cte;
|
|
i
|
|
1
|
|
SELECT * FROM cte;
|
|
f
|
|
2
|
|
DROP TABLE cte;
|
|
DROP TABLE t;
|
|
#
|
|
# MDEV-13107: SHOW TABLE STATUS, SHOW CREATE VIEW
|
|
# for CTEs that use derived tables
|
|
#
|
|
create table t1(a int) engine=myisam;
|
|
insert into t1 values (3), (1), (2);
|
|
create table t2 (b int) engine=myisam;
|
|
insert into t2 values (2), (10);
|
|
create view v1 as
|
|
with t as (select s.a from (select t1.a from t1) s),
|
|
r as(select t.a from t2, t where t2.b=t.a)
|
|
select a from r;
|
|
create view v2 as
|
|
with t as (select s.a from (select t1.a from t1) s),
|
|
r as(select t.a from t2, t where t2.b=t.a)
|
|
select a from t1;
|
|
show table status;
|
|
show create view v1;
|
|
View Create View character_set_client collation_connection
|
|
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS with t as (select `s`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1`) `s`), r as (select `t`.`a` AS `a` from (`test`.`t2` join `t`) where `test`.`t2`.`b` = `t`.`a`)select `r`.`a` AS `a` from `r` latin1 latin1_swedish_ci
|
|
show create view v2;
|
|
View Create View character_set_client collation_connection
|
|
v2 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v2` AS with t as (select `s`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1`) `s`), r as (select `t`.`a` AS `a` from (`test`.`t2` join `t`) where `test`.`t2`.`b` = `t`.`a`)select `test`.`t1`.`a` AS `a` from `test`.`t1` latin1 latin1_swedish_ci
|
|
select * from v1;
|
|
a
|
|
2
|
|
select * from v2;
|
|
a
|
|
3
|
|
1
|
|
2
|
|
prepare stmt1 from "select * from v1";
|
|
execute stmt1;
|
|
a
|
|
2
|
|
execute stmt1;
|
|
a
|
|
2
|
|
prepare stmt2 from "select * from v2";
|
|
execute stmt2;
|
|
a
|
|
3
|
|
1
|
|
2
|
|
execute stmt2;
|
|
a
|
|
3
|
|
1
|
|
2
|
|
deallocate prepare stmt1;
|
|
deallocate prepare stmt2;
|
|
drop view v1,v2;
|
|
drop table t1,t2;
|