mirror of https://github.com/citusdata/citus.git
noncolocated outer join tests
aykutbozkurt
parent
d747f7476f
commit
3c4f478f7b
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@ -0,0 +1,406 @@
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CREATE TABLE t1(col1 INT, col2 INT);
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SELECT create_distributed_table('t1', 'col1');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO t1 SELECT i, i FROM generate_series(1,10) i;
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CREATE TABLE t2(col1 INT, col2 INT);
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SELECT create_distributed_table('t2', 'col2');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO t2 SELECT i, i FROM generate_series(6,15) i;
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CREATE TABLE t3(col1 INT, col2 INT);
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SELECT create_distributed_table('t3', 'col1');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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INSERT INTO t3 SELECT i, i FROM generate_series(11,20) i;
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SET citus.enable_repartition_joins TO ON;
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SET citus.log_multi_join_order TO ON;
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SET client_min_messages TO LOG;
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-- join order planner can handle left outer join between tables with simple join clause
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-- outer table restricted on partition column whereas inner one is not restricted on the partition column
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SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col1 = t2.col1) ORDER BY 1,2,3,4;
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LOG: join order: [ "t1" ][ dual partition join(LEFT) "t2" ]
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col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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1 | 1 | |
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2 | 2 | |
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3 | 3 | |
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5 | 5 | |
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6 | 6 | 6 | 6
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7 | 7 | 7 | 7
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8 | 8 | 8 | 8
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9 | 9 | 9 | 9
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10 | 10 | 10 | 10
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(10 rows)
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-- inner table restricted on partition column whereas outer one is not restricted on the partition column
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SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col2 = t2.col2) ORDER BY 1,2,3,4;
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LOG: join order: [ "t1" ][ dual partition join(LEFT) "t2" ]
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col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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1 | 1 | |
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2 | 2 | |
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3 | 3 | |
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5 | 5 | |
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6 | 6 | 6 | 6
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7 | 7 | 7 | 7
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8 | 8 | 8 | 8
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9 | 9 | 9 | 9
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10 | 10 | 10 | 10
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(10 rows)
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-- both tables are not restricted on partition column
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SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col2 = t2.col1) ORDER BY 1,2,3,4;
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LOG: join order: [ "t1" ][ dual partition join(LEFT) "t2" ]
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col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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1 | 1 | |
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2 | 2 | |
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3 | 3 | |
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6 | 6 | 6 | 6
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7 | 7 | 7 | 7
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8 | 8 | 8 | 8
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9 | 9 | 9 | 9
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10 | 10 | 10 | 10
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(10 rows)
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-- join order planner can handle right outer join between tables with simple join clause
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-- outer table restricted on partition column whereas inner one is not restricted on the partition column
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SELECT t1.*, t2.* FROM t1 RIGHT JOIN t2 ON (t1.col1 = t2.col1) ORDER BY 1,2,3,4;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ]
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col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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6 | 6 | 6 | 6
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7 | 7 | 7 | 7
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8 | 8 | 8 | 8
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9 | 9 | 9 | 9
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(10 rows)
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-- inner table restricted on partition column whereas outer one is not restricted on the partition column
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SELECT t1.*, t2.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col2) ORDER BY 1,2,3,4;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ]
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col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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6 | 6 | 6 | 6
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7 | 7 | 7 | 7
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8 | 8 | 8 | 8
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(10 rows)
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-- both tables are not restricted on partition column
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SELECT t1.*, t2.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col1) ORDER BY 1,2,3,4;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ]
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col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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6 | 6 | 6 | 6
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7 | 7 | 7 | 7
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8 | 8 | 8 | 8
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9 | 9 | 9 | 9
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10 | 10 | 10 | 10
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(10 rows)
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-- join order planner can handle full outer join between tables with simple join clause
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-- left outer table restricted on partition column whereas right outer one is not restricted on the partition column
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SELECT t1.*, t2.* FROM t1 FULL JOIN t2 ON (t1.col1 = t2.col1) ORDER BY 1,2,3,4;
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LOG: join order: [ "t1" ][ dual partition join(FULL) "t2" ]
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col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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1 | 1 | |
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2 | 2 | |
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3 | 3 | |
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5 | 5 | |
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6 | 6 | 6 | 6
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10 | 10 | 10 | 10
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(15 rows)
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-- right outer table restricted on partition column whereas left outer one is not restricted on the partition column
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SELECT t1.*, t2.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col2) ORDER BY 1,2,3,4;
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LOG: join order: [ "t1" ][ dual partition join(FULL) "t2" ]
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col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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1 | 1 | |
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2 | 2 | |
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3 | 3 | |
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4 | 4 | |
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(15 rows)
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-- both tables are not restricted on partition column
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SELECT t1.*, t2.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col1) ORDER BY 1,2,3,4;
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LOG: join order: [ "t1" ][ dual partition join(FULL) "t2" ]
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col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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1 | 1 | |
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2 | 2 | |
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3 | 3 | |
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(15 rows)
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-- join order planner can handle queries with multi joins consisting of outer joins with simple join clause
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SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t1.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t1" ][ local partition join(INNER) "t3" ][ dual partition join(INNER) "t2" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(0 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t2.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(5 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t1.col2) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t1" ][ dual partition join(INNER) "t2" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(0 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t2.col2) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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| | 11 | 11 | 11 | 11
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(5 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t1.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t1" ][ dual partition join(INNER) "t2" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(0 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t2.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(5 rows)
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SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t1.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t1" ][ local partition join(INNER) "t3" ][ dual partition join(INNER) "t2" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(0 rows)
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SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t2.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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| | 11 | 11 | 11 | 11
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(5 rows)
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SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t1.col2) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(INNER) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(0 rows)
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SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t2.col2) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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| | 11 | 11 | 11 | 11
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| | 13 | 13 | 13 | 13
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(5 rows)
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SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t1.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(INNER) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(0 rows)
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SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t2.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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| | 11 | 11 | 11 | 11
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| | 12 | 12 | 12 | 12
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| | 13 | 13 | 13 | 13
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| | 14 | 14 | 14 | 14
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| | 15 | 15 | 15 | 15
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(5 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t1.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t1" ][ dual partition join(LEFT) "t2" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(0 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t2.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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| | 11 | 11 | 11 | 11
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| | 12 | 12 | 12 | 12
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| | 13 | 13 | 13 | 13
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| | 14 | 14 | 14 | 14
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| | 15 | 15 | 15 | 15
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(5 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t1.col2) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t1" ][ dual partition join(LEFT) "t2" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(0 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t2.col2) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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| | 11 | 11 | 11 | 11
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| | 12 | 12 | 12 | 12
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| | 13 | 13 | 13 | 13
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| | 14 | 14 | 14 | 14
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| | 15 | 15 | 15 | 15
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(5 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t1.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t1" ][ dual partition join(LEFT) "t2" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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(0 rows)
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SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t2.col1) ORDER BY 1,2,3,4,5,6;
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LOG: join order: [ "t2" ][ dual partition join(LEFT) "t1" ][ dual partition join(INNER) "t3" ]
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col1 | col2 | col1 | col2 | col1 | col2
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---------------------------------------------------------------------
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| | 11 | 11 | 11 | 11
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| | 12 | 12 | 12 | 12
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| | 13 | 13 | 13 | 13
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| | 14 | 14 | 14 | 14
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| | 15 | 15 | 15 | 15
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(5 rows)
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-- join order planner cannot handle semi joins
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SELECT t1.* FROM t1 WHERE EXISTS (SELECT * FROM t2 WHERE t1.col1 = t2.col1) ORDER BY 1,2;
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ERROR: complex joins are only supported when all distributed tables are co-located and joined on their distribution columns
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SELECT t1.* FROM t1 WHERE EXISTS (SELECT * FROM t2 WHERE t1.col2 = t2.col2) ORDER BY 1,2;
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ERROR: complex joins are only supported when all distributed tables are co-located and joined on their distribution columns
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SELECT t2.* FROM t2 WHERE EXISTS (SELECT * FROM t1 WHERE t1.col1 = t2.col1) ORDER BY 1,2;
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ERROR: complex joins are only supported when all distributed tables are co-located and joined on their distribution columns
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SELECT t2.* FROM t2 WHERE EXISTS (SELECT * FROM t1 WHERE t1.col2 = t2.col2) ORDER BY 1,2;
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ERROR: complex joins are only supported when all distributed tables are co-located and joined on their distribution columns
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------------------------- wrong results below, should not be supported if there exists nonsimple join clause
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-- join order planner cannot handle anti join between tables with simple join clause
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SELECT t1.* FROM t1 WHERE NOT EXISTS (SELECT * FROM t2 WHERE t1.col1 = t2.col1) ORDER BY 1,2;
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ERROR: complex joins are only supported when all distributed tables are co-located and joined on their distribution columns
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SELECT t1.* FROM t1 WHERE NOT EXISTS (SELECT * FROM t2 WHERE t1.col2 = t2.col2) ORDER BY 1,2;
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ERROR: complex joins are only supported when all distributed tables are co-located and joined on their distribution columns
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SELECT t2.* FROM t2 WHERE NOT EXISTS (SELECT * FROM t1 WHERE t1.col1 = t2.col1) ORDER BY 1,2;
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ERROR: complex joins are only supported when all distributed tables are co-located and joined on their distribution columns
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SELECT t2.* FROM t2 WHERE NOT EXISTS (SELECT * FROM t1 WHERE t1.col2 = t2.col2) ORDER BY 1,2;
|
||||
ERROR: complex joins are only supported when all distributed tables are co-located and joined on their distribution columns
|
||||
-- join order planner cannot handle left outer join between tables with nonsimple join clause
|
||||
-- where constraint(t1.col1 IS NULL or t2.col2 IS NULL) is considered as join constraint
|
||||
SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col1 = t2.col1) WHERE (t1.col1 IS NULL or t2.col2 IS NULL) ORDER BY 1,2,3,4;
|
||||
LOG: join order: [ "t1" ][ dual partition join(LEFT) "t2" ]
|
||||
col1 | col2 | col1 | col2
|
||||
---------------------------------------------------------------------
|
||||
1 | 1 | |
|
||||
2 | 2 | |
|
||||
3 | 3 | |
|
||||
4 | 4 | |
|
||||
5 | 5 | |
|
||||
6 | 6 | |
|
||||
7 | 7 | |
|
||||
8 | 8 | |
|
||||
9 | 9 | |
|
||||
10 | 10 | |
|
||||
(10 rows)
|
||||
|
||||
-- join constraint(t1.col1 < 0) is considered as where constraint
|
||||
SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col1 = t2.col1 and t1.col1 < 0) ORDER BY 1,2,3,4;
|
||||
LOG: join order: [ "t1" ][ dual partition join(LEFT) "t2" ]
|
||||
col1 | col2 | col1 | col2
|
||||
---------------------------------------------------------------------
|
||||
1 | 1 | |
|
||||
2 | 2 | |
|
||||
3 | 3 | |
|
||||
4 | 4 | |
|
||||
5 | 5 | |
|
||||
6 | 6 | 6 | 6
|
||||
7 | 7 | 7 | 7
|
||||
8 | 8 | 8 | 8
|
||||
9 | 9 | 9 | 9
|
||||
10 | 10 | 10 | 10
|
||||
(10 rows)
|
||||
|
||||
|
|
@ -0,0 +1,93 @@
|
|||
CREATE TABLE t1(col1 INT, col2 INT);
|
||||
SELECT create_distributed_table('t1', 'col1');
|
||||
INSERT INTO t1 SELECT i, i FROM generate_series(1,10) i;
|
||||
|
||||
CREATE TABLE t2(col1 INT, col2 INT);
|
||||
SELECT create_distributed_table('t2', 'col2');
|
||||
INSERT INTO t2 SELECT i, i FROM generate_series(6,15) i;
|
||||
|
||||
CREATE TABLE t3(col1 INT, col2 INT);
|
||||
SELECT create_distributed_table('t3', 'col1');
|
||||
INSERT INTO t3 SELECT i, i FROM generate_series(11,20) i;
|
||||
|
||||
SET citus.enable_repartition_joins TO ON;
|
||||
SET citus.log_multi_join_order TO ON;
|
||||
SET client_min_messages TO LOG;
|
||||
|
||||
|
||||
-- join order planner can handle left outer join between tables with simple join clause
|
||||
|
||||
-- outer table restricted on partition column whereas inner one is not restricted on the partition column
|
||||
SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col1 = t2.col1) ORDER BY 1,2,3,4;
|
||||
-- inner table restricted on partition column whereas outer one is not restricted on the partition column
|
||||
SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col2 = t2.col2) ORDER BY 1,2,3,4;
|
||||
-- both tables are not restricted on partition column
|
||||
SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col2 = t2.col1) ORDER BY 1,2,3,4;
|
||||
|
||||
|
||||
-- join order planner can handle right outer join between tables with simple join clause
|
||||
|
||||
-- outer table restricted on partition column whereas inner one is not restricted on the partition column
|
||||
SELECT t1.*, t2.* FROM t1 RIGHT JOIN t2 ON (t1.col1 = t2.col1) ORDER BY 1,2,3,4;
|
||||
-- inner table restricted on partition column whereas outer one is not restricted on the partition column
|
||||
SELECT t1.*, t2.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col2) ORDER BY 1,2,3,4;
|
||||
-- both tables are not restricted on partition column
|
||||
SELECT t1.*, t2.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col1) ORDER BY 1,2,3,4;
|
||||
|
||||
|
||||
-- join order planner can handle full outer join between tables with simple join clause
|
||||
|
||||
-- left outer table restricted on partition column whereas right outer one is not restricted on the partition column
|
||||
SELECT t1.*, t2.* FROM t1 FULL JOIN t2 ON (t1.col1 = t2.col1) ORDER BY 1,2,3,4;
|
||||
-- right outer table restricted on partition column whereas left outer one is not restricted on the partition column
|
||||
SELECT t1.*, t2.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col2) ORDER BY 1,2,3,4;
|
||||
-- both tables are not restricted on partition column
|
||||
SELECT t1.*, t2.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col1) ORDER BY 1,2,3,4;
|
||||
|
||||
|
||||
-- join order planner can handle queries with multi joins consisting of outer joins with simple join clause
|
||||
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t1.col1) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t2.col1) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t1.col2) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t2.col2) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t1.col1) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 RIGHT JOIN t2 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t2.col1) ORDER BY 1,2,3,4,5,6;
|
||||
|
||||
SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t1.col1) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t2.col1) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t1.col2) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t2.col2) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t1.col1) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t2 LEFT JOIN t1 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t2.col1) ORDER BY 1,2,3,4,5,6;
|
||||
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t1.col1) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col1 = t2.col1) INNER JOIN t3 ON (t3.col1 = t2.col1) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t1.col2) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col2) INNER JOIN t3 ON (t3.col2 = t2.col2) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t1.col1) ORDER BY 1,2,3,4,5,6;
|
||||
SELECT t1.*, t2.*, t3.* FROM t1 FULL JOIN t2 ON (t1.col2 = t2.col1) INNER JOIN t3 ON (t3.col2 = t2.col1) ORDER BY 1,2,3,4,5,6;
|
||||
|
||||
-- join order planner cannot handle semi joins
|
||||
|
||||
SELECT t1.* FROM t1 WHERE EXISTS (SELECT * FROM t2 WHERE t1.col1 = t2.col1) ORDER BY 1,2;
|
||||
SELECT t1.* FROM t1 WHERE EXISTS (SELECT * FROM t2 WHERE t1.col2 = t2.col2) ORDER BY 1,2;
|
||||
SELECT t2.* FROM t2 WHERE EXISTS (SELECT * FROM t1 WHERE t1.col1 = t2.col1) ORDER BY 1,2;
|
||||
SELECT t2.* FROM t2 WHERE EXISTS (SELECT * FROM t1 WHERE t1.col2 = t2.col2) ORDER BY 1,2;
|
||||
|
||||
|
||||
------------------------- wrong results below, should not be supported if there exists nonsimple join clause
|
||||
|
||||
-- join order planner cannot handle anti join between tables with simple join clause
|
||||
|
||||
SELECT t1.* FROM t1 WHERE NOT EXISTS (SELECT * FROM t2 WHERE t1.col1 = t2.col1) ORDER BY 1,2;
|
||||
SELECT t1.* FROM t1 WHERE NOT EXISTS (SELECT * FROM t2 WHERE t1.col2 = t2.col2) ORDER BY 1,2;
|
||||
SELECT t2.* FROM t2 WHERE NOT EXISTS (SELECT * FROM t1 WHERE t1.col1 = t2.col1) ORDER BY 1,2;
|
||||
SELECT t2.* FROM t2 WHERE NOT EXISTS (SELECT * FROM t1 WHERE t1.col2 = t2.col2) ORDER BY 1,2;
|
||||
|
||||
-- join order planner cannot handle left outer join between tables with nonsimple join clause
|
||||
|
||||
-- where constraint(t1.col1 IS NULL or t2.col2 IS NULL) is considered as join constraint
|
||||
SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col1 = t2.col1) WHERE (t1.col1 IS NULL or t2.col2 IS NULL) ORDER BY 1,2,3,4;
|
||||
-- join constraint(t1.col1 < 0) is considered as where constraint
|
||||
SELECT t1.*, t2.* FROM t1 LEFT JOIN t2 ON (t1.col1 = t2.col1 and t1.col1 < 0) ORDER BY 1,2,3,4;
|
||||
Loading…
Reference in New Issue