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0e96978cf6
account by the optimizer. Now all row equalities are converted into conjunctions of equalities between row elements. They are taken into account by the optimizer together with the original regular equality predicates.
141 lines
5 KiB
Text
141 lines
5 KiB
Text
# Initialise
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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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select (1,2,3) IN ((3,2,3), (1,2,3), (1,3,3));
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select row(10,2,3) IN (row(3,2,3), row(1,2,3), row(1,3,3));
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select row(1,2,3) IN (row(3,NULL,3), row(1,2,3), row(1,3,3));
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select row(10,2,3) IN (row(3,NULL,3), row(1,2,3), row(1,3,3));
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--disable_ps_warnings
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select row('a',1.5,3) IN (row(1,2,3), row('a',1.5,3), row('a','a','a'));
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select row('a',0,3) IN (row(3,2,3), row('a','a','3'), row(1,3,3));
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--enable_ps_warnings
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select row('a',0,3) IN (row(3,2,3), row('a','0','3'), row(1,3,3));
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select row('a',1.5,3) IN (row(3,NULL,3), row('a',1.5,3), row(1,3,3));
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select row('b',1.5,3) IN (row(3,NULL,3), row('a',1.5,3), row(1,3,3));
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select row('b',1.5,3) IN (row('b',NULL,3), row('a',1.5,3), row(1,3,3));
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select row('b',1.5,3) IN (row('b',NULL,4), row('a',1.5,3), row(1,3,3));
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select (1,2,(3,4)) IN ((3,2,(3,4)), (1,2,(3,4)));
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-- error 1241
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select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,4));
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select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)));
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explain extended select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)));
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SELECT (1,2,3)=(0,NULL,3);
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SELECT (1,2,3)=(1,NULL,3);
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# here's something for Sanja to fix :)
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SELECT (1,2,3)=(1,NULL,0);
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SELECT ROW(1,2,3)=ROW(1,2,3);
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SELECT ROW(2,2,3)=ROW(1+1,2,3);
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SELECT ROW(1,2,3)=ROW(1+1,2,3);
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SELECT ROW(1,2,3)<ROW(1+1,2,3);
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SELECT ROW(1,2,3)>ROW(1+1,2,3);
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SELECT ROW(1,2,3)<=ROW(1+1,2,3);
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SELECT ROW(1,2,3)>=ROW(1+1,2,3);
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SELECT ROW(1,2,3)<>ROW(1+1,2,3);
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SELECT ROW(NULL,2,3)=ROW(NULL,2,3);
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SELECT ROW(NULL,2,3)<=>ROW(NULL,2,3);
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SELECT ROW(1,2,ROW(3,4,5))=ROW(1,2,ROW(3,4,5));
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SELECT ROW('test',2,3.33)=ROW('test',2,3.33);
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-- error 1241
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SELECT ROW('test',2,3.33)=ROW('test',2,3.33,4);
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SELECT ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,33));
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SELECT ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,3));
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SELECT ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,NULL));
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-- error 1241
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SELECT ROW('test',2,ROW(3,33))=ROW('test',2,4);
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create table t1 ( a int, b int, c int);
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insert into t1 values (1,2,3), (2,3,1), (3,2,1), (1,2,NULL);
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select * from t1 where ROW(1,2,3)=ROW(a,b,c);
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select * from t1 where ROW(0,2,3)=ROW(a,b,c);
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select * from t1 where ROW(1,2,3)<ROW(a,b,c);
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select ROW(a,2,3) IN(row(1,b,c), row(2,3,1)) from t1;
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select ROW(c,2,3) IN(row(1,b,a), row(2,3,1)) from t1;
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select ROW(a,b,c) IN(row(1,2,3), row(3,2,1)) from t1;
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select ROW(1,2,3) IN(row(a,b,c), row(1,2,3)) from t1;
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drop table t1;
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-- error 1241
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select ROW(1,1);
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create table t1 (i int);
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-- error 1241
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select 1 from t1 where ROW(1,1);
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-- error 1241
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select count(*) from t1 order by ROW(1,1);
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-- error 1241
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select count(*) from t1 having (1,1) order by i;
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drop table t1;
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create table t1 (a int, b int);
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insert into t1 values (1, 4);
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insert into t1 values (10, 40);
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insert into t1 values (1, 4);
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insert into t1 values (10, 43);
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insert into t1 values (1, 4);
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insert into t1 values (10, 41);
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insert into t1 values (1, 4);
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insert into t1 values (10, 43);
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insert into t1 values (1, 4);
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select a, MAX(b), (1, MAX(b)) = (1, 4) from t1 group by a;
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drop table t1;
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SELECT ROW(2,10) <=> ROW(3,4);
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SELECT ROW(NULL,10) <=> ROW(3,NULL);
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# End of 4.1 tests
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#
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# Correct NULL handling in row comporison (BUG#12509)
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#
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SELECT ROW(1,1,1) = ROW(1,1,1) as `1`, ROW(1,1,1) = ROW(1,2,1) as `0`, ROW(1,NULL,1) = ROW(2,2,1) as `0`, ROW(1,NULL,1) = ROW(1,2,2) as `0`, ROW(1,NULL,1) = ROW(1,2,1) as `null` ;
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select row(NULL,1)=(2,0);
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#
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# Bug #16081: row equalities are to be used for query optimizations
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#
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CREATE TABLE t1 (a int, b int, PRIMARY KEY (a,b));
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INSERT INTO t1 VALUES (1,1), (2,1), (3,1), (1,2), (3,2), (3,3);
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EXPLAIN SELECT * FROM t1 WHERE a=3 AND b=2;
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EXPLAIN SELECT * FROM t1 WHERE (a,b)=(3,2);
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SELECT * FROM t1 WHERE a=3 and b=2;
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SELECT * FROM t1 WHERE (a,b)=(3,2);
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CREATE TABLE t2 (a int, b int, c int, PRIMARY KEY (a,b,c));
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INSERT INTO t2 VALUES
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(1,1,2), (3,1,3), (1,2,2), (4,4,2),
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(1,1,1), (3,1,1), (1,2,1);
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EXPLAIN SELECT * FROM t1,t2 WHERE t1.a=t2.a AND t1.b=t2.b;
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EXPLAIN SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,t2.b);
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SELECT * FROM t1,t2 WHERE t1.a=t2.a and t1.b=t2.b;
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SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,t2.b);
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EXPLAIN SELECT * FROM t1,t2 WHERE t1.a=t2.a AND t1.b=2;
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EXPLAIN SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,2);
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SELECT * FROM t1,t2 WHERE t1.a=1 and t1.b=t2.b;
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SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,2);
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EXPLAIN EXTENDED SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,t2.b+1);
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SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,t2.b+1);
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EXPLAIN EXTENDED SELECT * FROM t1,t2 WHERE (t1.a-1,t1.b)=(t2.a-1,t2.b+1);
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SELECT * FROM t1,t2 WHERE (t1.a-1,t1.b)=(t2.a-1,t2.b+1);
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EXPLAIN SELECT * FROM t2 WHERE a=3 AND b=2;
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EXPLAIN SELECT * FROM t2 WHERE (a,b)=(3,2);
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SELECT * FROM t2 WHERE a=3 and b=2;
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SELECT * FROM t2 WHERE (a,b)=(3,2);
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EXPLAIN SELECT * FROM t1,t2 WHERE t2.a=t1.a AND t2.b=2 AND t2.c=1;
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EXPLAIN EXTENDED SELECT * FROM t1,t2 WHERE (t2.a,(t2.b,t2.c))=(t1.a,(2,1));
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SELECT * FROM t1,t2 WHERE (t2.a,(t2.b,t2.c))=(t1.a,(2,1));
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EXPLAIN EXTENDED SELECT * FROM t1,t2 WHERE t2.a=t1.a AND (t2.b,t2.c)=(2,1);
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SELECT * FROM t1,t2 WHERE t2.a=t1.a AND (t2.b,t2.c)=(2,1);
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DROP TABLE t1,t2;
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