1170 lines
63 KiB
SQL
1170 lines
63 KiB
SQL
--
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-- PARTITION_JOIN
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-- Test partitionwise join between partitioned tables
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--
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-- Enable partitionwise join, which by default is disabled.
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SET enable_partitionwise_join to true;
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--
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-- partitioned by a single column
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--
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CREATE TABLE prt1 (a int, b int, c varchar) PARTITION BY RANGE(a);
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CREATE TABLE prt1_p1 PARTITION OF prt1 FOR VALUES FROM (0) TO (250);
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CREATE TABLE prt1_p3 PARTITION OF prt1 FOR VALUES FROM (500) TO (600);
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CREATE TABLE prt1_p2 PARTITION OF prt1 FOR VALUES FROM (250) TO (500);
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INSERT INTO prt1 SELECT i, i % 25, to_char(i, 'FM0000') FROM generate_series(0, 599) i WHERE i % 2 = 0;
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CREATE INDEX iprt1_p1_a on prt1_p1(a);
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CREATE INDEX iprt1_p2_a on prt1_p2(a);
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CREATE INDEX iprt1_p3_a on prt1_p3(a);
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ANALYZE prt1;
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CREATE TABLE prt2 (a int, b int, c varchar) PARTITION BY RANGE(b);
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CREATE TABLE prt2_p1 PARTITION OF prt2 FOR VALUES FROM (0) TO (250);
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CREATE TABLE prt2_p2 PARTITION OF prt2 FOR VALUES FROM (250) TO (500);
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CREATE TABLE prt2_p3 PARTITION OF prt2 FOR VALUES FROM (500) TO (600);
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INSERT INTO prt2 SELECT i % 25, i, to_char(i, 'FM0000') FROM generate_series(0, 599) i WHERE i % 3 = 0;
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CREATE INDEX iprt2_p1_b on prt2_p1(b);
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CREATE INDEX iprt2_p2_b on prt2_p2(b);
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CREATE INDEX iprt2_p3_b on prt2_p3(b);
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ANALYZE prt2;
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-- inner join
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1, prt2 t2 WHERE t1.a = t2.b AND t1.b = 0 ORDER BY t1.a, t2.b;
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SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1, prt2 t2 WHERE t1.a = t2.b AND t1.b = 0 ORDER BY t1.a, t2.b;
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-- left outer join, with whole-row reference; partitionwise join does not apply
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EXPLAIN (COSTS OFF)
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SELECT t1, t2 FROM prt1 t1 LEFT JOIN prt2 t2 ON t1.a = t2.b WHERE t1.b = 0 ORDER BY t1.a, t2.b;
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SELECT t1, t2 FROM prt1 t1 LEFT JOIN prt2 t2 ON t1.a = t2.b WHERE t1.b = 0 ORDER BY t1.a, t2.b;
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-- right outer join
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1 RIGHT JOIN prt2 t2 ON t1.a = t2.b WHERE t2.a = 0 ORDER BY t1.a, t2.b;
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SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1 RIGHT JOIN prt2 t2 ON t1.a = t2.b WHERE t2.a = 0 ORDER BY t1.a, t2.b;
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-- full outer join, with placeholder vars
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT 50 phv, * FROM prt1 WHERE prt1.b = 0) t1 FULL JOIN (SELECT 75 phv, * FROM prt2 WHERE prt2.a = 0) t2 ON (t1.a = t2.b) WHERE t1.phv = t1.a OR t2.phv = t2.b ORDER BY t1.a, t2.b;
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SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT 50 phv, * FROM prt1 WHERE prt1.b = 0) t1 FULL JOIN (SELECT 75 phv, * FROM prt2 WHERE prt2.a = 0) t2 ON (t1.a = t2.b) WHERE t1.phv = t1.a OR t2.phv = t2.b ORDER BY t1.a, t2.b;
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-- Join with pruned partitions from joining relations
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1, prt2 t2 WHERE t1.a = t2.b AND t1.a < 450 AND t2.b > 250 AND t1.b = 0 ORDER BY t1.a, t2.b;
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SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1, prt2 t2 WHERE t1.a = t2.b AND t1.a < 450 AND t2.b > 250 AND t1.b = 0 ORDER BY t1.a, t2.b;
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-- Currently we can't do partitioned join if nullable-side partitions are pruned
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1 WHERE a < 450) t1 LEFT JOIN (SELECT * FROM prt2 WHERE b > 250) t2 ON t1.a = t2.b WHERE t1.b = 0 ORDER BY t1.a, t2.b;
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SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1 WHERE a < 450) t1 LEFT JOIN (SELECT * FROM prt2 WHERE b > 250) t2 ON t1.a = t2.b WHERE t1.b = 0 ORDER BY t1.a, t2.b;
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-- Currently we can't do partitioned join if nullable-side partitions are pruned
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1 WHERE a < 450) t1 FULL JOIN (SELECT * FROM prt2 WHERE b > 250) t2 ON t1.a = t2.b WHERE t1.b = 0 OR t2.a = 0 ORDER BY t1.a, t2.b;
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SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1 WHERE a < 450) t1 FULL JOIN (SELECT * FROM prt2 WHERE b > 250) t2 ON t1.a = t2.b WHERE t1.b = 0 OR t2.a = 0 ORDER BY t1.a, t2.b;
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-- Semi-join
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EXPLAIN (COSTS OFF)
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SELECT t1.* FROM prt1 t1 WHERE t1.a IN (SELECT t2.b FROM prt2 t2 WHERE t2.a = 0) AND t1.b = 0 ORDER BY t1.a;
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SELECT t1.* FROM prt1 t1 WHERE t1.a IN (SELECT t2.b FROM prt2 t2 WHERE t2.a = 0) AND t1.b = 0 ORDER BY t1.a;
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-- Anti-join with aggregates
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EXPLAIN (COSTS OFF)
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SELECT sum(t1.a), avg(t1.a), sum(t1.b), avg(t1.b) FROM prt1 t1 WHERE NOT EXISTS (SELECT 1 FROM prt2 t2 WHERE t1.a = t2.b);
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SELECT sum(t1.a), avg(t1.a), sum(t1.b), avg(t1.b) FROM prt1 t1 WHERE NOT EXISTS (SELECT 1 FROM prt2 t2 WHERE t1.a = t2.b);
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-- lateral reference
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EXPLAIN (COSTS OFF)
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SELECT * FROM prt1 t1 LEFT JOIN LATERAL
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(SELECT t2.a AS t2a, t3.a AS t3a, least(t1.a,t2.a,t3.b) FROM prt1 t2 JOIN prt2 t3 ON (t2.a = t3.b)) ss
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ON t1.a = ss.t2a WHERE t1.b = 0 ORDER BY t1.a;
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SELECT * FROM prt1 t1 LEFT JOIN LATERAL
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(SELECT t2.a AS t2a, t3.a AS t3a, least(t1.a,t2.a,t3.b) FROM prt1 t2 JOIN prt2 t3 ON (t2.a = t3.b)) ss
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ON t1.a = ss.t2a WHERE t1.b = 0 ORDER BY t1.a;
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EXPLAIN (COSTS OFF)
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SELECT t1.a, ss.t2a, ss.t2c FROM prt1 t1 LEFT JOIN LATERAL
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(SELECT t2.a AS t2a, t3.a AS t3a, t2.b t2b, t2.c t2c, least(t1.a,t2.a,t3.b) FROM prt1 t2 JOIN prt2 t3 ON (t2.a = t3.b)) ss
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ON t1.c = ss.t2c WHERE (t1.b + coalesce(ss.t2b, 0)) = 0 ORDER BY t1.a;
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SELECT t1.a, ss.t2a, ss.t2c FROM prt1 t1 LEFT JOIN LATERAL
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(SELECT t2.a AS t2a, t3.a AS t3a, t2.b t2b, t2.c t2c, least(t1.a,t2.a,t3.a) FROM prt1 t2 JOIN prt2 t3 ON (t2.a = t3.b)) ss
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ON t1.c = ss.t2c WHERE (t1.b + coalesce(ss.t2b, 0)) = 0 ORDER BY t1.a;
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-- bug with inadequate sort key representation
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SET enable_partitionwise_aggregate TO true;
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SET enable_hashjoin TO false;
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EXPLAIN (COSTS OFF)
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SELECT a, b FROM prt1 FULL JOIN prt2 p2(b,a,c) USING(a,b)
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WHERE a BETWEEN 490 AND 510
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GROUP BY 1, 2 ORDER BY 1, 2;
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SELECT a, b FROM prt1 FULL JOIN prt2 p2(b,a,c) USING(a,b)
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WHERE a BETWEEN 490 AND 510
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GROUP BY 1, 2 ORDER BY 1, 2;
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RESET enable_partitionwise_aggregate;
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RESET enable_hashjoin;
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--
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-- partitioned by expression
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--
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CREATE TABLE prt1_e (a int, b int, c int) PARTITION BY RANGE(((a + b)/2));
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CREATE TABLE prt1_e_p1 PARTITION OF prt1_e FOR VALUES FROM (0) TO (250);
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CREATE TABLE prt1_e_p2 PARTITION OF prt1_e FOR VALUES FROM (250) TO (500);
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CREATE TABLE prt1_e_p3 PARTITION OF prt1_e FOR VALUES FROM (500) TO (600);
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INSERT INTO prt1_e SELECT i, i, i % 25 FROM generate_series(0, 599, 2) i;
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CREATE INDEX iprt1_e_p1_ab2 on prt1_e_p1(((a+b)/2));
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CREATE INDEX iprt1_e_p2_ab2 on prt1_e_p2(((a+b)/2));
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CREATE INDEX iprt1_e_p3_ab2 on prt1_e_p3(((a+b)/2));
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ANALYZE prt1_e;
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CREATE TABLE prt2_e (a int, b int, c int) PARTITION BY RANGE(((b + a)/2));
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CREATE TABLE prt2_e_p1 PARTITION OF prt2_e FOR VALUES FROM (0) TO (250);
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CREATE TABLE prt2_e_p2 PARTITION OF prt2_e FOR VALUES FROM (250) TO (500);
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CREATE TABLE prt2_e_p3 PARTITION OF prt2_e FOR VALUES FROM (500) TO (600);
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INSERT INTO prt2_e SELECT i, i, i % 25 FROM generate_series(0, 599, 3) i;
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ANALYZE prt2_e;
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_e t1, prt2_e t2 WHERE (t1.a + t1.b)/2 = (t2.b + t2.a)/2 AND t1.c = 0 ORDER BY t1.a, t2.b;
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SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_e t1, prt2_e t2 WHERE (t1.a + t1.b)/2 = (t2.b + t2.a)/2 AND t1.c = 0 ORDER BY t1.a, t2.b;
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--
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-- N-way join
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--
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c, t3.a + t3.b, t3.c FROM prt1 t1, prt2 t2, prt1_e t3 WHERE t1.a = t2.b AND t1.a = (t3.a + t3.b)/2 AND t1.b = 0 ORDER BY t1.a, t2.b;
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SELECT t1.a, t1.c, t2.b, t2.c, t3.a + t3.b, t3.c FROM prt1 t1, prt2 t2, prt1_e t3 WHERE t1.a = t2.b AND t1.a = (t3.a + t3.b)/2 AND t1.b = 0 ORDER BY t1.a, t2.b;
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c, t3.a + t3.b, t3.c FROM (prt1 t1 LEFT JOIN prt2 t2 ON t1.a = t2.b) LEFT JOIN prt1_e t3 ON (t1.a = (t3.a + t3.b)/2) WHERE t1.b = 0 ORDER BY t1.a, t2.b, t3.a + t3.b;
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SELECT t1.a, t1.c, t2.b, t2.c, t3.a + t3.b, t3.c FROM (prt1 t1 LEFT JOIN prt2 t2 ON t1.a = t2.b) LEFT JOIN prt1_e t3 ON (t1.a = (t3.a + t3.b)/2) WHERE t1.b = 0 ORDER BY t1.a, t2.b, t3.a + t3.b;
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c, t3.a + t3.b, t3.c FROM (prt1 t1 LEFT JOIN prt2 t2 ON t1.a = t2.b) RIGHT JOIN prt1_e t3 ON (t1.a = (t3.a + t3.b)/2) WHERE t3.c = 0 ORDER BY t1.a, t2.b, t3.a + t3.b;
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SELECT t1.a, t1.c, t2.b, t2.c, t3.a + t3.b, t3.c FROM (prt1 t1 LEFT JOIN prt2 t2 ON t1.a = t2.b) RIGHT JOIN prt1_e t3 ON (t1.a = (t3.a + t3.b)/2) WHERE t3.c = 0 ORDER BY t1.a, t2.b, t3.a + t3.b;
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--
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-- 3-way full join
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--
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EXPLAIN (COSTS OFF)
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SELECT COUNT(*) FROM prt1 FULL JOIN prt2 p2(b,a,c) USING(a,b) FULL JOIN prt2 p3(b,a,c) USING (a, b)
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WHERE a BETWEEN 490 AND 510;
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SELECT COUNT(*) FROM prt1 FULL JOIN prt2 p2(b,a,c) USING(a,b) FULL JOIN prt2 p3(b,a,c) USING (a, b)
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WHERE a BETWEEN 490 AND 510;
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--
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-- 4-way full join
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--
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EXPLAIN (COSTS OFF)
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SELECT COUNT(*) FROM prt1 FULL JOIN prt2 p2(b,a,c) USING(a,b) FULL JOIN prt2 p3(b,a,c) USING (a, b) FULL JOIN prt1 p4 (a,b,c) USING (a, b)
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WHERE a BETWEEN 490 AND 510;
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SELECT COUNT(*) FROM prt1 FULL JOIN prt2 p2(b,a,c) USING(a,b) FULL JOIN prt2 p3(b,a,c) USING (a, b) FULL JOIN prt1 p4 (a,b,c) USING (a, b)
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WHERE a BETWEEN 490 AND 510;
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-- Cases with non-nullable expressions in subquery results;
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-- make sure these go to null as expected
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.phv, t2.b, t2.phv, t3.a + t3.b, t3.phv FROM ((SELECT 50 phv, * FROM prt1 WHERE prt1.b = 0) t1 FULL JOIN (SELECT 75 phv, * FROM prt2 WHERE prt2.a = 0) t2 ON (t1.a = t2.b)) FULL JOIN (SELECT 50 phv, * FROM prt1_e WHERE prt1_e.c = 0) t3 ON (t1.a = (t3.a + t3.b)/2) WHERE t1.a = t1.phv OR t2.b = t2.phv OR (t3.a + t3.b)/2 = t3.phv ORDER BY t1.a, t2.b, t3.a + t3.b;
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SELECT t1.a, t1.phv, t2.b, t2.phv, t3.a + t3.b, t3.phv FROM ((SELECT 50 phv, * FROM prt1 WHERE prt1.b = 0) t1 FULL JOIN (SELECT 75 phv, * FROM prt2 WHERE prt2.a = 0) t2 ON (t1.a = t2.b)) FULL JOIN (SELECT 50 phv, * FROM prt1_e WHERE prt1_e.c = 0) t3 ON (t1.a = (t3.a + t3.b)/2) WHERE t1.a = t1.phv OR t2.b = t2.phv OR (t3.a + t3.b)/2 = t3.phv ORDER BY t1.a, t2.b, t3.a + t3.b;
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-- Semi-join
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EXPLAIN (COSTS OFF)
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SELECT t1.* FROM prt1 t1 WHERE t1.a IN (SELECT t1.b FROM prt2 t1, prt1_e t2 WHERE t1.a = 0 AND t1.b = (t2.a + t2.b)/2) AND t1.b = 0 ORDER BY t1.a;
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SELECT t1.* FROM prt1 t1 WHERE t1.a IN (SELECT t1.b FROM prt2 t1, prt1_e t2 WHERE t1.a = 0 AND t1.b = (t2.a + t2.b)/2) AND t1.b = 0 ORDER BY t1.a;
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EXPLAIN (COSTS OFF)
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SELECT t1.* FROM prt1 t1 WHERE t1.a IN (SELECT t1.b FROM prt2 t1 WHERE t1.b IN (SELECT (t1.a + t1.b)/2 FROM prt1_e t1 WHERE t1.c = 0)) AND t1.b = 0 ORDER BY t1.a;
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SELECT t1.* FROM prt1 t1 WHERE t1.a IN (SELECT t1.b FROM prt2 t1 WHERE t1.b IN (SELECT (t1.a + t1.b)/2 FROM prt1_e t1 WHERE t1.c = 0)) AND t1.b = 0 ORDER BY t1.a;
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-- test merge joins
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SET enable_hashjoin TO off;
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SET enable_nestloop TO off;
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EXPLAIN (COSTS OFF)
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SELECT t1.* FROM prt1 t1 WHERE t1.a IN (SELECT t1.b FROM prt2 t1 WHERE t1.b IN (SELECT (t1.a + t1.b)/2 FROM prt1_e t1 WHERE t1.c = 0)) AND t1.b = 0 ORDER BY t1.a;
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SELECT t1.* FROM prt1 t1 WHERE t1.a IN (SELECT t1.b FROM prt2 t1 WHERE t1.b IN (SELECT (t1.a + t1.b)/2 FROM prt1_e t1 WHERE t1.c = 0)) AND t1.b = 0 ORDER BY t1.a;
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c, t3.a + t3.b, t3.c FROM (prt1 t1 LEFT JOIN prt2 t2 ON t1.a = t2.b) RIGHT JOIN prt1_e t3 ON (t1.a = (t3.a + t3.b)/2) WHERE t3.c = 0 ORDER BY t1.a, t2.b, t3.a + t3.b;
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SELECT t1.a, t1.c, t2.b, t2.c, t3.a + t3.b, t3.c FROM (prt1 t1 LEFT JOIN prt2 t2 ON t1.a = t2.b) RIGHT JOIN prt1_e t3 ON (t1.a = (t3.a + t3.b)/2) WHERE t3.c = 0 ORDER BY t1.a, t2.b, t3.a + t3.b;
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-- MergeAppend on nullable column
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-- This should generate a partitionwise join, but currently fails to
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t2.b FROM (SELECT * FROM prt1 WHERE a < 450) t1 LEFT JOIN (SELECT * FROM prt2 WHERE b > 250) t2 ON t1.a = t2.b WHERE t1.b = 0 ORDER BY t1.a, t2.b;
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SELECT t1.a, t2.b FROM (SELECT * FROM prt1 WHERE a < 450) t1 LEFT JOIN (SELECT * FROM prt2 WHERE b > 250) t2 ON t1.a = t2.b WHERE t1.b = 0 ORDER BY t1.a, t2.b;
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-- merge join when expression with whole-row reference needs to be sorted;
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-- partitionwise join does not apply
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t2.b FROM prt1 t1, prt2 t2 WHERE t1::text = t2::text AND t1.a = t2.b ORDER BY t1.a;
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SELECT t1.a, t2.b FROM prt1 t1, prt2 t2 WHERE t1::text = t2::text AND t1.a = t2.b ORDER BY t1.a;
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RESET enable_hashjoin;
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RESET enable_nestloop;
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--
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-- partitioned by multiple columns
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--
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CREATE TABLE prt1_m (a int, b int, c int) PARTITION BY RANGE(a, ((a + b)/2));
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CREATE TABLE prt1_m_p1 PARTITION OF prt1_m FOR VALUES FROM (0, 0) TO (250, 250);
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CREATE TABLE prt1_m_p2 PARTITION OF prt1_m FOR VALUES FROM (250, 250) TO (500, 500);
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CREATE TABLE prt1_m_p3 PARTITION OF prt1_m FOR VALUES FROM (500, 500) TO (600, 600);
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INSERT INTO prt1_m SELECT i, i, i % 25 FROM generate_series(0, 599, 2) i;
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ANALYZE prt1_m;
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CREATE TABLE prt2_m (a int, b int, c int) PARTITION BY RANGE(((b + a)/2), b);
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CREATE TABLE prt2_m_p1 PARTITION OF prt2_m FOR VALUES FROM (0, 0) TO (250, 250);
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CREATE TABLE prt2_m_p2 PARTITION OF prt2_m FOR VALUES FROM (250, 250) TO (500, 500);
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CREATE TABLE prt2_m_p3 PARTITION OF prt2_m FOR VALUES FROM (500, 500) TO (600, 600);
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INSERT INTO prt2_m SELECT i, i, i % 25 FROM generate_series(0, 599, 3) i;
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ANALYZE prt2_m;
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1_m WHERE prt1_m.c = 0) t1 FULL JOIN (SELECT * FROM prt2_m WHERE prt2_m.c = 0) t2 ON (t1.a = (t2.b + t2.a)/2 AND t2.b = (t1.a + t1.b)/2) ORDER BY t1.a, t2.b;
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SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1_m WHERE prt1_m.c = 0) t1 FULL JOIN (SELECT * FROM prt2_m WHERE prt2_m.c = 0) t2 ON (t1.a = (t2.b + t2.a)/2 AND t2.b = (t1.a + t1.b)/2) ORDER BY t1.a, t2.b;
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--
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-- tests for list partitioned tables.
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--
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CREATE TABLE plt1 (a int, b int, c text) PARTITION BY LIST(c);
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CREATE TABLE plt1_p1 PARTITION OF plt1 FOR VALUES IN ('0000', '0003', '0004', '0010');
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CREATE TABLE plt1_p2 PARTITION OF plt1 FOR VALUES IN ('0001', '0005', '0002', '0009');
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CREATE TABLE plt1_p3 PARTITION OF plt1 FOR VALUES IN ('0006', '0007', '0008', '0011');
|
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INSERT INTO plt1 SELECT i, i, to_char(i/50, 'FM0000') FROM generate_series(0, 599, 2) i;
|
|
ANALYZE plt1;
|
|
|
|
CREATE TABLE plt2 (a int, b int, c text) PARTITION BY LIST(c);
|
|
CREATE TABLE plt2_p1 PARTITION OF plt2 FOR VALUES IN ('0000', '0003', '0004', '0010');
|
|
CREATE TABLE plt2_p2 PARTITION OF plt2 FOR VALUES IN ('0001', '0005', '0002', '0009');
|
|
CREATE TABLE plt2_p3 PARTITION OF plt2 FOR VALUES IN ('0006', '0007', '0008', '0011');
|
|
INSERT INTO plt2 SELECT i, i, to_char(i/50, 'FM0000') FROM generate_series(0, 599, 3) i;
|
|
ANALYZE plt2;
|
|
|
|
--
|
|
-- list partitioned by expression
|
|
--
|
|
CREATE TABLE plt1_e (a int, b int, c text) PARTITION BY LIST(ltrim(c, 'A'));
|
|
CREATE TABLE plt1_e_p1 PARTITION OF plt1_e FOR VALUES IN ('0000', '0003', '0004', '0010');
|
|
CREATE TABLE plt1_e_p2 PARTITION OF plt1_e FOR VALUES IN ('0001', '0005', '0002', '0009');
|
|
CREATE TABLE plt1_e_p3 PARTITION OF plt1_e FOR VALUES IN ('0006', '0007', '0008', '0011');
|
|
INSERT INTO plt1_e SELECT i, i, 'A' || to_char(i/50, 'FM0000') FROM generate_series(0, 599, 2) i;
|
|
ANALYZE plt1_e;
|
|
|
|
-- test partition matching with N-way join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT avg(t1.a), avg(t2.b), avg(t3.a + t3.b), t1.c, t2.c, t3.c FROM plt1 t1, plt2 t2, plt1_e t3 WHERE t1.b = t2.b AND t1.c = t2.c AND ltrim(t3.c, 'A') = t1.c GROUP BY t1.c, t2.c, t3.c ORDER BY t1.c, t2.c, t3.c;
|
|
SELECT avg(t1.a), avg(t2.b), avg(t3.a + t3.b), t1.c, t2.c, t3.c FROM plt1 t1, plt2 t2, plt1_e t3 WHERE t1.b = t2.b AND t1.c = t2.c AND ltrim(t3.c, 'A') = t1.c GROUP BY t1.c, t2.c, t3.c ORDER BY t1.c, t2.c, t3.c;
|
|
|
|
-- joins where one of the relations is proven empty
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1, prt2 t2 WHERE t1.a = t2.b AND t1.a = 1 AND t1.a = 2;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1 WHERE a = 1 AND a = 2) t1 LEFT JOIN prt2 t2 ON t1.a = t2.b;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1 WHERE a = 1 AND a = 2) t1 RIGHT JOIN prt2 t2 ON t1.a = t2.b, prt1 t3 WHERE t2.b = t3.a;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1 WHERE a = 1 AND a = 2) t1 FULL JOIN prt2 t2 ON t1.a = t2.b WHERE t2.a = 0 ORDER BY t1.a, t2.b;
|
|
|
|
--
|
|
-- tests for hash partitioned tables.
|
|
--
|
|
CREATE TABLE pht1 (a int, b int, c text) PARTITION BY HASH(c);
|
|
CREATE TABLE pht1_p1 PARTITION OF pht1 FOR VALUES WITH (MODULUS 3, REMAINDER 0);
|
|
CREATE TABLE pht1_p2 PARTITION OF pht1 FOR VALUES WITH (MODULUS 3, REMAINDER 1);
|
|
CREATE TABLE pht1_p3 PARTITION OF pht1 FOR VALUES WITH (MODULUS 3, REMAINDER 2);
|
|
INSERT INTO pht1 SELECT i, i, to_char(i/50, 'FM0000') FROM generate_series(0, 599, 2) i;
|
|
ANALYZE pht1;
|
|
|
|
CREATE TABLE pht2 (a int, b int, c text) PARTITION BY HASH(c);
|
|
CREATE TABLE pht2_p1 PARTITION OF pht2 FOR VALUES WITH (MODULUS 3, REMAINDER 0);
|
|
CREATE TABLE pht2_p2 PARTITION OF pht2 FOR VALUES WITH (MODULUS 3, REMAINDER 1);
|
|
CREATE TABLE pht2_p3 PARTITION OF pht2 FOR VALUES WITH (MODULUS 3, REMAINDER 2);
|
|
INSERT INTO pht2 SELECT i, i, to_char(i/50, 'FM0000') FROM generate_series(0, 599, 3) i;
|
|
ANALYZE pht2;
|
|
|
|
--
|
|
-- hash partitioned by expression
|
|
--
|
|
CREATE TABLE pht1_e (a int, b int, c text) PARTITION BY HASH(ltrim(c, 'A'));
|
|
CREATE TABLE pht1_e_p1 PARTITION OF pht1_e FOR VALUES WITH (MODULUS 3, REMAINDER 0);
|
|
CREATE TABLE pht1_e_p2 PARTITION OF pht1_e FOR VALUES WITH (MODULUS 3, REMAINDER 1);
|
|
CREATE TABLE pht1_e_p3 PARTITION OF pht1_e FOR VALUES WITH (MODULUS 3, REMAINDER 2);
|
|
INSERT INTO pht1_e SELECT i, i, 'A' || to_char(i/50, 'FM0000') FROM generate_series(0, 299, 2) i;
|
|
ANALYZE pht1_e;
|
|
|
|
-- test partition matching with N-way join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT avg(t1.a), avg(t2.b), avg(t3.a + t3.b), t1.c, t2.c, t3.c FROM pht1 t1, pht2 t2, pht1_e t3 WHERE t1.b = t2.b AND t1.c = t2.c AND ltrim(t3.c, 'A') = t1.c GROUP BY t1.c, t2.c, t3.c ORDER BY t1.c, t2.c, t3.c;
|
|
SELECT avg(t1.a), avg(t2.b), avg(t3.a + t3.b), t1.c, t2.c, t3.c FROM pht1 t1, pht2 t2, pht1_e t3 WHERE t1.b = t2.b AND t1.c = t2.c AND ltrim(t3.c, 'A') = t1.c GROUP BY t1.c, t2.c, t3.c ORDER BY t1.c, t2.c, t3.c;
|
|
|
|
-- test default partition behavior for range
|
|
ALTER TABLE prt1 DETACH PARTITION prt1_p3;
|
|
ALTER TABLE prt1 ATTACH PARTITION prt1_p3 DEFAULT;
|
|
ANALYZE prt1;
|
|
ALTER TABLE prt2 DETACH PARTITION prt2_p3;
|
|
ALTER TABLE prt2 ATTACH PARTITION prt2_p3 DEFAULT;
|
|
ANALYZE prt2;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1, prt2 t2 WHERE t1.a = t2.b AND t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
-- test default partition behavior for list
|
|
ALTER TABLE plt1 DETACH PARTITION plt1_p3;
|
|
ALTER TABLE plt1 ATTACH PARTITION plt1_p3 DEFAULT;
|
|
ANALYZE plt1;
|
|
ALTER TABLE plt2 DETACH PARTITION plt2_p3;
|
|
ALTER TABLE plt2 ATTACH PARTITION plt2_p3 DEFAULT;
|
|
ANALYZE plt2;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT avg(t1.a), avg(t2.b), t1.c, t2.c FROM plt1 t1 RIGHT JOIN plt2 t2 ON t1.c = t2.c WHERE t1.a % 25 = 0 GROUP BY t1.c, t2.c ORDER BY t1.c, t2.c;
|
|
--
|
|
-- multiple levels of partitioning
|
|
--
|
|
CREATE TABLE prt1_l (a int, b int, c varchar) PARTITION BY RANGE(a);
|
|
CREATE TABLE prt1_l_p1 PARTITION OF prt1_l FOR VALUES FROM (0) TO (250);
|
|
CREATE TABLE prt1_l_p2 PARTITION OF prt1_l FOR VALUES FROM (250) TO (500) PARTITION BY LIST (c);
|
|
CREATE TABLE prt1_l_p2_p1 PARTITION OF prt1_l_p2 FOR VALUES IN ('0000', '0001');
|
|
CREATE TABLE prt1_l_p2_p2 PARTITION OF prt1_l_p2 FOR VALUES IN ('0002', '0003');
|
|
CREATE TABLE prt1_l_p3 PARTITION OF prt1_l FOR VALUES FROM (500) TO (600) PARTITION BY RANGE (b);
|
|
CREATE TABLE prt1_l_p3_p1 PARTITION OF prt1_l_p3 FOR VALUES FROM (0) TO (13);
|
|
CREATE TABLE prt1_l_p3_p2 PARTITION OF prt1_l_p3 FOR VALUES FROM (13) TO (25);
|
|
INSERT INTO prt1_l SELECT i, i % 25, to_char(i % 4, 'FM0000') FROM generate_series(0, 599, 2) i;
|
|
ANALYZE prt1_l;
|
|
|
|
CREATE TABLE prt2_l (a int, b int, c varchar) PARTITION BY RANGE(b);
|
|
CREATE TABLE prt2_l_p1 PARTITION OF prt2_l FOR VALUES FROM (0) TO (250);
|
|
CREATE TABLE prt2_l_p2 PARTITION OF prt2_l FOR VALUES FROM (250) TO (500) PARTITION BY LIST (c);
|
|
CREATE TABLE prt2_l_p2_p1 PARTITION OF prt2_l_p2 FOR VALUES IN ('0000', '0001');
|
|
CREATE TABLE prt2_l_p2_p2 PARTITION OF prt2_l_p2 FOR VALUES IN ('0002', '0003');
|
|
CREATE TABLE prt2_l_p3 PARTITION OF prt2_l FOR VALUES FROM (500) TO (600) PARTITION BY RANGE (a);
|
|
CREATE TABLE prt2_l_p3_p1 PARTITION OF prt2_l_p3 FOR VALUES FROM (0) TO (13);
|
|
CREATE TABLE prt2_l_p3_p2 PARTITION OF prt2_l_p3 FOR VALUES FROM (13) TO (25);
|
|
INSERT INTO prt2_l SELECT i % 25, i, to_char(i % 4, 'FM0000') FROM generate_series(0, 599, 3) i;
|
|
ANALYZE prt2_l;
|
|
|
|
-- inner join, qual covering only top-level partitions
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_l t1, prt2_l t2 WHERE t1.a = t2.b AND t1.b = 0 ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_l t1, prt2_l t2 WHERE t1.a = t2.b AND t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
-- left join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_l t1 LEFT JOIN prt2_l t2 ON t1.a = t2.b AND t1.c = t2.c WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_l t1 LEFT JOIN prt2_l t2 ON t1.a = t2.b AND t1.c = t2.c WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
-- right join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_l t1 RIGHT JOIN prt2_l t2 ON t1.a = t2.b AND t1.c = t2.c WHERE t2.a = 0 ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_l t1 RIGHT JOIN prt2_l t2 ON t1.a = t2.b AND t1.c = t2.c WHERE t2.a = 0 ORDER BY t1.a, t2.b;
|
|
|
|
-- full join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1_l WHERE prt1_l.b = 0) t1 FULL JOIN (SELECT * FROM prt2_l WHERE prt2_l.a = 0) t2 ON (t1.a = t2.b AND t1.c = t2.c) ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1_l WHERE prt1_l.b = 0) t1 FULL JOIN (SELECT * FROM prt2_l WHERE prt2_l.a = 0) t2 ON (t1.a = t2.b AND t1.c = t2.c) ORDER BY t1.a, t2.b;
|
|
|
|
-- lateral partitionwise join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT * FROM prt1_l t1 LEFT JOIN LATERAL
|
|
(SELECT t2.a AS t2a, t2.c AS t2c, t2.b AS t2b, t3.b AS t3b, least(t1.a,t2.a,t3.b) FROM prt1_l t2 JOIN prt2_l t3 ON (t2.a = t3.b AND t2.c = t3.c)) ss
|
|
ON t1.a = ss.t2a AND t1.c = ss.t2c WHERE t1.b = 0 ORDER BY t1.a;
|
|
SELECT * FROM prt1_l t1 LEFT JOIN LATERAL
|
|
(SELECT t2.a AS t2a, t2.c AS t2c, t2.b AS t2b, t3.b AS t3b, least(t1.a,t2.a,t3.b) FROM prt1_l t2 JOIN prt2_l t3 ON (t2.a = t3.b AND t2.c = t3.c)) ss
|
|
ON t1.a = ss.t2a AND t1.c = ss.t2c WHERE t1.b = 0 ORDER BY t1.a;
|
|
|
|
-- join with one side empty
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1_l WHERE a = 1 AND a = 2) t1 RIGHT JOIN prt2_l t2 ON t1.a = t2.b AND t1.b = t2.a AND t1.c = t2.c;
|
|
|
|
-- Test case to verify proper handling of subqueries in a partitioned delete.
|
|
-- The weird-looking lateral join is just there to force creation of a
|
|
-- nestloop parameter within the subquery, which exposes the problem if the
|
|
-- planner fails to make multiple copies of the subquery as appropriate.
|
|
EXPLAIN (COSTS OFF)
|
|
DELETE FROM prt1_l
|
|
WHERE EXISTS (
|
|
SELECT 1
|
|
FROM int4_tbl,
|
|
LATERAL (SELECT int4_tbl.f1 FROM int8_tbl LIMIT 2) ss
|
|
WHERE prt1_l.c IS NULL);
|
|
|
|
--
|
|
-- negative testcases
|
|
--
|
|
CREATE TABLE prt1_n (a int, b int, c varchar) PARTITION BY RANGE(c);
|
|
CREATE TABLE prt1_n_p1 PARTITION OF prt1_n FOR VALUES FROM ('0000') TO ('0250');
|
|
CREATE TABLE prt1_n_p2 PARTITION OF prt1_n FOR VALUES FROM ('0250') TO ('0500');
|
|
INSERT INTO prt1_n SELECT i, i, to_char(i, 'FM0000') FROM generate_series(0, 499, 2) i;
|
|
ANALYZE prt1_n;
|
|
|
|
CREATE TABLE prt2_n (a int, b int, c text) PARTITION BY LIST(c);
|
|
CREATE TABLE prt2_n_p1 PARTITION OF prt2_n FOR VALUES IN ('0000', '0003', '0004', '0010', '0006', '0007');
|
|
CREATE TABLE prt2_n_p2 PARTITION OF prt2_n FOR VALUES IN ('0001', '0005', '0002', '0009', '0008', '0011');
|
|
INSERT INTO prt2_n SELECT i, i, to_char(i/50, 'FM0000') FROM generate_series(0, 599, 2) i;
|
|
ANALYZE prt2_n;
|
|
|
|
CREATE TABLE prt3_n (a int, b int, c text) PARTITION BY LIST(c);
|
|
CREATE TABLE prt3_n_p1 PARTITION OF prt3_n FOR VALUES IN ('0000', '0004', '0006', '0007');
|
|
CREATE TABLE prt3_n_p2 PARTITION OF prt3_n FOR VALUES IN ('0001', '0002', '0008', '0010');
|
|
CREATE TABLE prt3_n_p3 PARTITION OF prt3_n FOR VALUES IN ('0003', '0005', '0009', '0011');
|
|
INSERT INTO prt2_n SELECT i, i, to_char(i/50, 'FM0000') FROM generate_series(0, 599, 2) i;
|
|
ANALYZE prt3_n;
|
|
|
|
CREATE TABLE prt4_n (a int, b int, c text) PARTITION BY RANGE(a);
|
|
CREATE TABLE prt4_n_p1 PARTITION OF prt4_n FOR VALUES FROM (0) TO (300);
|
|
CREATE TABLE prt4_n_p2 PARTITION OF prt4_n FOR VALUES FROM (300) TO (500);
|
|
CREATE TABLE prt4_n_p3 PARTITION OF prt4_n FOR VALUES FROM (500) TO (600);
|
|
INSERT INTO prt4_n SELECT i, i, to_char(i, 'FM0000') FROM generate_series(0, 599, 2) i;
|
|
ANALYZE prt4_n;
|
|
|
|
-- partitionwise join can not be applied if the partition ranges differ
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1, prt4_n t2 WHERE t1.a = t2.a;
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1, prt4_n t2, prt2 t3 WHERE t1.a = t2.a and t1.a = t3.b;
|
|
|
|
-- partitionwise join can not be applied if there are no equi-join conditions
|
|
-- between partition keys
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1 t1 LEFT JOIN prt2 t2 ON (t1.a < t2.b);
|
|
|
|
-- equi-join with join condition on partial keys does not qualify for
|
|
-- partitionwise join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_m t1, prt2_m t2 WHERE t1.a = (t2.b + t2.a)/2;
|
|
|
|
-- equi-join between out-of-order partition key columns does not qualify for
|
|
-- partitionwise join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_m t1 LEFT JOIN prt2_m t2 ON t1.a = t2.b;
|
|
|
|
-- equi-join between non-key columns does not qualify for partitionwise join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_m t1 LEFT JOIN prt2_m t2 ON t1.c = t2.c;
|
|
|
|
-- partitionwise join can not be applied for a join between list and range
|
|
-- partitioned tables
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_n t1 LEFT JOIN prt2_n t2 ON (t1.c = t2.c);
|
|
|
|
-- partitionwise join can not be applied between tables with different
|
|
-- partition lists
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_n t1 JOIN prt2_n t2 ON (t1.c = t2.c) JOIN plt1 t3 ON (t1.c = t3.c);
|
|
|
|
-- partitionwise join can not be applied for a join between key column and
|
|
-- non-key column
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_n t1 FULL JOIN prt1 t2 ON (t1.c = t2.c);
|
|
|
|
--
|
|
-- Test some other plan types in a partitionwise join (unfortunately,
|
|
-- we need larger tables to get the planner to choose these plan types)
|
|
--
|
|
create temp table prtx1 (a integer, b integer, c integer)
|
|
partition by range (a);
|
|
create temp table prtx1_1 partition of prtx1 for values from (1) to (11);
|
|
create temp table prtx1_2 partition of prtx1 for values from (11) to (21);
|
|
create temp table prtx1_3 partition of prtx1 for values from (21) to (31);
|
|
create temp table prtx2 (a integer, b integer, c integer)
|
|
partition by range (a);
|
|
create temp table prtx2_1 partition of prtx2 for values from (1) to (11);
|
|
create temp table prtx2_2 partition of prtx2 for values from (11) to (21);
|
|
create temp table prtx2_3 partition of prtx2 for values from (21) to (31);
|
|
insert into prtx1 select 1 + i%30, i, i
|
|
from generate_series(1,1000) i;
|
|
insert into prtx2 select 1 + i%30, i, i
|
|
from generate_series(1,500) i, generate_series(1,10) j;
|
|
create index on prtx2 (b);
|
|
create index on prtx2 (c);
|
|
analyze prtx1;
|
|
analyze prtx2;
|
|
|
|
explain (costs off)
|
|
select * from prtx1
|
|
where not exists (select 1 from prtx2
|
|
where prtx2.a=prtx1.a and prtx2.b=prtx1.b and prtx2.c=123)
|
|
and a<20 and c=120;
|
|
|
|
select * from prtx1
|
|
where not exists (select 1 from prtx2
|
|
where prtx2.a=prtx1.a and prtx2.b=prtx1.b and prtx2.c=123)
|
|
and a<20 and c=120;
|
|
|
|
explain (costs off)
|
|
select * from prtx1
|
|
where not exists (select 1 from prtx2
|
|
where prtx2.a=prtx1.a and (prtx2.b=prtx1.b+1 or prtx2.c=99))
|
|
and a<20 and c=91;
|
|
|
|
select * from prtx1
|
|
where not exists (select 1 from prtx2
|
|
where prtx2.a=prtx1.a and (prtx2.b=prtx1.b+1 or prtx2.c=99))
|
|
and a<20 and c=91;
|
|
|
|
--
|
|
-- Test advanced partition-matching algorithm for partitioned join
|
|
--
|
|
|
|
-- Tests for range-partitioned tables
|
|
CREATE TABLE prt1_adv (a int, b int, c varchar) PARTITION BY RANGE (a);
|
|
CREATE TABLE prt1_adv_p1 PARTITION OF prt1_adv FOR VALUES FROM (100) TO (200);
|
|
CREATE TABLE prt1_adv_p2 PARTITION OF prt1_adv FOR VALUES FROM (200) TO (300);
|
|
CREATE TABLE prt1_adv_p3 PARTITION OF prt1_adv FOR VALUES FROM (300) TO (400);
|
|
CREATE INDEX prt1_adv_a_idx ON prt1_adv (a);
|
|
INSERT INTO prt1_adv SELECT i, i % 25, to_char(i, 'FM0000') FROM generate_series(100, 399) i;
|
|
ANALYZE prt1_adv;
|
|
|
|
CREATE TABLE prt2_adv (a int, b int, c varchar) PARTITION BY RANGE (b);
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|
CREATE TABLE prt2_adv_p1 PARTITION OF prt2_adv FOR VALUES FROM (100) TO (150);
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|
CREATE TABLE prt2_adv_p2 PARTITION OF prt2_adv FOR VALUES FROM (200) TO (300);
|
|
CREATE TABLE prt2_adv_p3 PARTITION OF prt2_adv FOR VALUES FROM (350) TO (500);
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|
CREATE INDEX prt2_adv_b_idx ON prt2_adv (b);
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|
INSERT INTO prt2_adv_p1 SELECT i % 25, i, to_char(i, 'FM0000') FROM generate_series(100, 149) i;
|
|
INSERT INTO prt2_adv_p2 SELECT i % 25, i, to_char(i, 'FM0000') FROM generate_series(200, 299) i;
|
|
INSERT INTO prt2_adv_p3 SELECT i % 25, i, to_char(i, 'FM0000') FROM generate_series(350, 499) i;
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|
ANALYZE prt2_adv;
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|
|
|
-- inner join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
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|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
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|
|
|
-- semi join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM prt1_adv t1 WHERE EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
|
|
SELECT t1.* FROM prt1_adv t1 WHERE EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
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|
|
|
-- left join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 LEFT JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 LEFT JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
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|
|
|
-- anti join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM prt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
|
|
SELECT t1.* FROM prt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
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|
|
|
-- full join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT 175 phv, * FROM prt1_adv WHERE prt1_adv.b = 0) t1 FULL JOIN (SELECT 425 phv, * FROM prt2_adv WHERE prt2_adv.a = 0) t2 ON (t1.a = t2.b) WHERE t1.phv = t1.a OR t2.phv = t2.b ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT 175 phv, * FROM prt1_adv WHERE prt1_adv.b = 0) t1 FULL JOIN (SELECT 425 phv, * FROM prt2_adv WHERE prt2_adv.a = 0) t2 ON (t1.a = t2.b) WHERE t1.phv = t1.a OR t2.phv = t2.b ORDER BY t1.a, t2.b;
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|
|
|
-- Test cases where one side has an extra partition
|
|
CREATE TABLE prt2_adv_extra PARTITION OF prt2_adv FOR VALUES FROM (500) TO (MAXVALUE);
|
|
INSERT INTO prt2_adv SELECT i % 25, i, to_char(i, 'FM0000') FROM generate_series(500, 599) i;
|
|
ANALYZE prt2_adv;
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|
|
|
-- inner join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
-- semi join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM prt1_adv t1 WHERE EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
|
|
SELECT t1.* FROM prt1_adv t1 WHERE EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
|
|
|
|
-- left join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 LEFT JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 LEFT JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
-- left join; currently we can't do partitioned join if there are no matched
|
|
-- partitions on the nullable side
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.b, t1.c, t2.a, t2.c FROM prt2_adv t1 LEFT JOIN prt1_adv t2 ON (t1.b = t2.a) WHERE t1.a = 0 ORDER BY t1.b, t2.a;
|
|
|
|
-- anti join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM prt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
|
|
SELECT t1.* FROM prt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
|
|
|
|
-- anti join; currently we can't do partitioned join if there are no matched
|
|
-- partitions on the nullable side
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM prt2_adv t1 WHERE NOT EXISTS (SELECT 1 FROM prt1_adv t2 WHERE t1.b = t2.a) AND t1.a = 0 ORDER BY t1.b;
|
|
|
|
-- full join; currently we can't do partitioned join if there are no matched
|
|
-- partitions on the nullable side
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT 175 phv, * FROM prt1_adv WHERE prt1_adv.b = 0) t1 FULL JOIN (SELECT 425 phv, * FROM prt2_adv WHERE prt2_adv.a = 0) t2 ON (t1.a = t2.b) WHERE t1.phv = t1.a OR t2.phv = t2.b ORDER BY t1.a, t2.b;
|
|
|
|
-- 3-way join where not every pair of relations can do partitioned join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.b, t1.c, t2.a, t2.c, t3.a, t3.c FROM prt2_adv t1 LEFT JOIN prt1_adv t2 ON (t1.b = t2.a) INNER JOIN prt1_adv t3 ON (t1.b = t3.a) WHERE t1.a = 0 ORDER BY t1.b, t2.a, t3.a;
|
|
SELECT t1.b, t1.c, t2.a, t2.c, t3.a, t3.c FROM prt2_adv t1 LEFT JOIN prt1_adv t2 ON (t1.b = t2.a) INNER JOIN prt1_adv t3 ON (t1.b = t3.a) WHERE t1.a = 0 ORDER BY t1.b, t2.a, t3.a;
|
|
|
|
DROP TABLE prt2_adv_extra;
|
|
|
|
-- Test cases where a partition on one side matches multiple partitions on
|
|
-- the other side; we currently can't do partitioned join in such cases
|
|
ALTER TABLE prt2_adv DETACH PARTITION prt2_adv_p3;
|
|
-- Split prt2_adv_p3 into two partitions so that prt1_adv_p3 matches both
|
|
CREATE TABLE prt2_adv_p3_1 PARTITION OF prt2_adv FOR VALUES FROM (350) TO (375);
|
|
CREATE TABLE prt2_adv_p3_2 PARTITION OF prt2_adv FOR VALUES FROM (375) TO (500);
|
|
INSERT INTO prt2_adv SELECT i % 25, i, to_char(i, 'FM0000') FROM generate_series(350, 499) i;
|
|
ANALYZE prt2_adv;
|
|
|
|
-- inner join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
-- semi join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM prt1_adv t1 WHERE EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
|
|
|
|
-- left join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 LEFT JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
-- anti join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM prt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM prt2_adv t2 WHERE t1.a = t2.b) AND t1.b = 0 ORDER BY t1.a;
|
|
|
|
-- full join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT 175 phv, * FROM prt1_adv WHERE prt1_adv.b = 0) t1 FULL JOIN (SELECT 425 phv, * FROM prt2_adv WHERE prt2_adv.a = 0) t2 ON (t1.a = t2.b) WHERE t1.phv = t1.a OR t2.phv = t2.b ORDER BY t1.a, t2.b;
|
|
|
|
DROP TABLE prt2_adv_p3_1;
|
|
DROP TABLE prt2_adv_p3_2;
|
|
ANALYZE prt2_adv;
|
|
|
|
-- Test default partitions
|
|
ALTER TABLE prt1_adv DETACH PARTITION prt1_adv_p1;
|
|
-- Change prt1_adv_p1 to the default partition
|
|
ALTER TABLE prt1_adv ATTACH PARTITION prt1_adv_p1 DEFAULT;
|
|
ALTER TABLE prt1_adv DETACH PARTITION prt1_adv_p3;
|
|
ANALYZE prt1_adv;
|
|
|
|
-- We can do partitioned join even if only one of relations has the default
|
|
-- partition
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
-- Restore prt1_adv_p3
|
|
ALTER TABLE prt1_adv ATTACH PARTITION prt1_adv_p3 FOR VALUES FROM (300) TO (400);
|
|
ANALYZE prt1_adv;
|
|
|
|
-- Restore prt2_adv_p3
|
|
ALTER TABLE prt2_adv ATTACH PARTITION prt2_adv_p3 FOR VALUES FROM (350) TO (500);
|
|
ANALYZE prt2_adv;
|
|
|
|
-- Partitioned join can't be applied because the default partition of prt1_adv
|
|
-- matches prt2_adv_p1 and prt2_adv_p3
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
ALTER TABLE prt2_adv DETACH PARTITION prt2_adv_p3;
|
|
-- Change prt2_adv_p3 to the default partition
|
|
ALTER TABLE prt2_adv ATTACH PARTITION prt2_adv_p3 DEFAULT;
|
|
ANALYZE prt2_adv;
|
|
|
|
-- Partitioned join can't be applied because the default partition of prt1_adv
|
|
-- matches prt2_adv_p1 and prt2_adv_p3
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
DROP TABLE prt1_adv_p3;
|
|
ANALYZE prt1_adv;
|
|
|
|
DROP TABLE prt2_adv_p3;
|
|
ANALYZE prt2_adv;
|
|
|
|
CREATE TABLE prt3_adv (a int, b int, c varchar) PARTITION BY RANGE (a);
|
|
CREATE TABLE prt3_adv_p1 PARTITION OF prt3_adv FOR VALUES FROM (200) TO (300);
|
|
CREATE TABLE prt3_adv_p2 PARTITION OF prt3_adv FOR VALUES FROM (300) TO (400);
|
|
CREATE INDEX prt3_adv_a_idx ON prt3_adv (a);
|
|
INSERT INTO prt3_adv SELECT i, i % 25, to_char(i, 'FM0000') FROM generate_series(200, 399) i;
|
|
ANALYZE prt3_adv;
|
|
|
|
-- 3-way join to test the default partition of a join relation
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c, t3.a, t3.c FROM prt1_adv t1 LEFT JOIN prt2_adv t2 ON (t1.a = t2.b) LEFT JOIN prt3_adv t3 ON (t1.a = t3.a) WHERE t1.b = 0 ORDER BY t1.a, t2.b, t3.a;
|
|
SELECT t1.a, t1.c, t2.b, t2.c, t3.a, t3.c FROM prt1_adv t1 LEFT JOIN prt2_adv t2 ON (t1.a = t2.b) LEFT JOIN prt3_adv t3 ON (t1.a = t3.a) WHERE t1.b = 0 ORDER BY t1.a, t2.b, t3.a;
|
|
|
|
DROP TABLE prt1_adv;
|
|
DROP TABLE prt2_adv;
|
|
DROP TABLE prt3_adv;
|
|
|
|
-- Test interaction of partitioned join with partition pruning
|
|
CREATE TABLE prt1_adv (a int, b int, c varchar) PARTITION BY RANGE (a);
|
|
CREATE TABLE prt1_adv_p1 PARTITION OF prt1_adv FOR VALUES FROM (100) TO (200);
|
|
CREATE TABLE prt1_adv_p2 PARTITION OF prt1_adv FOR VALUES FROM (200) TO (300);
|
|
CREATE TABLE prt1_adv_p3 PARTITION OF prt1_adv FOR VALUES FROM (300) TO (400);
|
|
CREATE INDEX prt1_adv_a_idx ON prt1_adv (a);
|
|
INSERT INTO prt1_adv SELECT i, i % 25, to_char(i, 'FM0000') FROM generate_series(100, 399) i;
|
|
ANALYZE prt1_adv;
|
|
|
|
CREATE TABLE prt2_adv (a int, b int, c varchar) PARTITION BY RANGE (b);
|
|
CREATE TABLE prt2_adv_p1 PARTITION OF prt2_adv FOR VALUES FROM (100) TO (200);
|
|
CREATE TABLE prt2_adv_p2 PARTITION OF prt2_adv FOR VALUES FROM (200) TO (400);
|
|
CREATE INDEX prt2_adv_b_idx ON prt2_adv (b);
|
|
INSERT INTO prt2_adv SELECT i % 25, i, to_char(i, 'FM0000') FROM generate_series(100, 399) i;
|
|
ANALYZE prt2_adv;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.a < 300 AND t1.b = 0 ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.a < 300 AND t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
DROP TABLE prt1_adv_p3;
|
|
CREATE TABLE prt1_adv_default PARTITION OF prt1_adv DEFAULT;
|
|
ANALYZE prt1_adv;
|
|
|
|
CREATE TABLE prt2_adv_default PARTITION OF prt2_adv DEFAULT;
|
|
ANALYZE prt2_adv;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.a >= 100 AND t1.a < 300 AND t1.b = 0 ORDER BY t1.a, t2.b;
|
|
SELECT t1.a, t1.c, t2.b, t2.c FROM prt1_adv t1 INNER JOIN prt2_adv t2 ON (t1.a = t2.b) WHERE t1.a >= 100 AND t1.a < 300 AND t1.b = 0 ORDER BY t1.a, t2.b;
|
|
|
|
DROP TABLE prt1_adv;
|
|
DROP TABLE prt2_adv;
|
|
|
|
|
|
-- Tests for list-partitioned tables
|
|
CREATE TABLE plt1_adv (a int, b int, c text) PARTITION BY LIST (c);
|
|
CREATE TABLE plt1_adv_p1 PARTITION OF plt1_adv FOR VALUES IN ('0001', '0003');
|
|
CREATE TABLE plt1_adv_p2 PARTITION OF plt1_adv FOR VALUES IN ('0004', '0006');
|
|
CREATE TABLE plt1_adv_p3 PARTITION OF plt1_adv FOR VALUES IN ('0008', '0009');
|
|
INSERT INTO plt1_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (1, 3, 4, 6, 8, 9);
|
|
ANALYZE plt1_adv;
|
|
|
|
CREATE TABLE plt2_adv (a int, b int, c text) PARTITION BY LIST (c);
|
|
CREATE TABLE plt2_adv_p1 PARTITION OF plt2_adv FOR VALUES IN ('0002', '0003');
|
|
CREATE TABLE plt2_adv_p2 PARTITION OF plt2_adv FOR VALUES IN ('0004', '0006');
|
|
CREATE TABLE plt2_adv_p3 PARTITION OF plt2_adv FOR VALUES IN ('0007', '0009');
|
|
INSERT INTO plt2_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (2, 3, 4, 6, 7, 9);
|
|
ANALYZE plt2_adv;
|
|
|
|
-- inner join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- semi join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM plt1_adv t1 WHERE EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.* FROM plt1_adv t1 WHERE EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- left join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- anti join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM plt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.* FROM plt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- full join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 FULL JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE coalesce(t1.b, 0) < 10 AND coalesce(t2.b, 0) < 10 ORDER BY t1.a, t2.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 FULL JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE coalesce(t1.b, 0) < 10 AND coalesce(t2.b, 0) < 10 ORDER BY t1.a, t2.a;
|
|
|
|
-- Test cases where one side has an extra partition
|
|
CREATE TABLE plt2_adv_extra PARTITION OF plt2_adv FOR VALUES IN ('0000');
|
|
INSERT INTO plt2_adv_extra VALUES (0, 0, '0000');
|
|
ANALYZE plt2_adv;
|
|
|
|
-- inner join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- semi join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM plt1_adv t1 WHERE EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.* FROM plt1_adv t1 WHERE EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- left join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- left join; currently we can't do partitioned join if there are no matched
|
|
-- partitions on the nullable side
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt2_adv t1 LEFT JOIN plt1_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- anti join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM plt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.* FROM plt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- anti join; currently we can't do partitioned join if there are no matched
|
|
-- partitions on the nullable side
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM plt2_adv t1 WHERE NOT EXISTS (SELECT 1 FROM plt1_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- full join; currently we can't do partitioned join if there are no matched
|
|
-- partitions on the nullable side
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 FULL JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE coalesce(t1.b, 0) < 10 AND coalesce(t2.b, 0) < 10 ORDER BY t1.a, t2.a;
|
|
|
|
DROP TABLE plt2_adv_extra;
|
|
|
|
-- Test cases where a partition on one side matches multiple partitions on
|
|
-- the other side; we currently can't do partitioned join in such cases
|
|
ALTER TABLE plt2_adv DETACH PARTITION plt2_adv_p2;
|
|
-- Split plt2_adv_p2 into two partitions so that plt1_adv_p2 matches both
|
|
CREATE TABLE plt2_adv_p2_1 PARTITION OF plt2_adv FOR VALUES IN ('0004');
|
|
CREATE TABLE plt2_adv_p2_2 PARTITION OF plt2_adv FOR VALUES IN ('0006');
|
|
INSERT INTO plt2_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (4, 6);
|
|
ANALYZE plt2_adv;
|
|
|
|
-- inner join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- semi join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM plt1_adv t1 WHERE EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- left join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- anti join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM plt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- full join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 FULL JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE coalesce(t1.b, 0) < 10 AND coalesce(t2.b, 0) < 10 ORDER BY t1.a, t2.a;
|
|
|
|
DROP TABLE plt2_adv_p2_1;
|
|
DROP TABLE plt2_adv_p2_2;
|
|
-- Restore plt2_adv_p2
|
|
ALTER TABLE plt2_adv ATTACH PARTITION plt2_adv_p2 FOR VALUES IN ('0004', '0006');
|
|
|
|
-- Test NULL partitions
|
|
ALTER TABLE plt1_adv DETACH PARTITION plt1_adv_p1;
|
|
-- Change plt1_adv_p1 to the NULL partition
|
|
CREATE TABLE plt1_adv_p1_null PARTITION OF plt1_adv FOR VALUES IN (NULL, '0001', '0003');
|
|
INSERT INTO plt1_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (1, 3);
|
|
INSERT INTO plt1_adv VALUES (-1, -1, NULL);
|
|
ANALYZE plt1_adv;
|
|
|
|
ALTER TABLE plt2_adv DETACH PARTITION plt2_adv_p3;
|
|
-- Change plt2_adv_p3 to the NULL partition
|
|
CREATE TABLE plt2_adv_p3_null PARTITION OF plt2_adv FOR VALUES IN (NULL, '0007', '0009');
|
|
INSERT INTO plt2_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (7, 9);
|
|
INSERT INTO plt2_adv VALUES (-1, -1, NULL);
|
|
ANALYZE plt2_adv;
|
|
|
|
-- inner join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- semi join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM plt1_adv t1 WHERE EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.* FROM plt1_adv t1 WHERE EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- left join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- anti join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.* FROM plt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.* FROM plt1_adv t1 WHERE NOT EXISTS (SELECT 1 FROM plt2_adv t2 WHERE t1.a = t2.a AND t1.c = t2.c) AND t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- full join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 FULL JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE coalesce(t1.b, 0) < 10 AND coalesce(t2.b, 0) < 10 ORDER BY t1.a, t2.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 FULL JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE coalesce(t1.b, 0) < 10 AND coalesce(t2.b, 0) < 10 ORDER BY t1.a, t2.a;
|
|
|
|
DROP TABLE plt1_adv_p1_null;
|
|
-- Restore plt1_adv_p1
|
|
ALTER TABLE plt1_adv ATTACH PARTITION plt1_adv_p1 FOR VALUES IN ('0001', '0003');
|
|
-- Add to plt1_adv the extra NULL partition containing only NULL values as the
|
|
-- key values
|
|
CREATE TABLE plt1_adv_extra PARTITION OF plt1_adv FOR VALUES IN (NULL);
|
|
INSERT INTO plt1_adv VALUES (-1, -1, NULL);
|
|
ANALYZE plt1_adv;
|
|
|
|
DROP TABLE plt2_adv_p3_null;
|
|
-- Restore plt2_adv_p3
|
|
ALTER TABLE plt2_adv ATTACH PARTITION plt2_adv_p3 FOR VALUES IN ('0007', '0009');
|
|
ANALYZE plt2_adv;
|
|
|
|
-- inner join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- left join; currently we can't do partitioned join if there are no matched
|
|
-- partitions on the nullable side
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- full join; currently we can't do partitioned join if there are no matched
|
|
-- partitions on the nullable side
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 FULL JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE coalesce(t1.b, 0) < 10 AND coalesce(t2.b, 0) < 10 ORDER BY t1.a, t2.a;
|
|
|
|
-- Add to plt2_adv the extra NULL partition containing only NULL values as the
|
|
-- key values
|
|
CREATE TABLE plt2_adv_extra PARTITION OF plt2_adv FOR VALUES IN (NULL);
|
|
INSERT INTO plt2_adv VALUES (-1, -1, NULL);
|
|
ANALYZE plt2_adv;
|
|
|
|
-- inner join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- left join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- full join
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 FULL JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE coalesce(t1.b, 0) < 10 AND coalesce(t2.b, 0) < 10 ORDER BY t1.a, t2.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 FULL JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE coalesce(t1.b, 0) < 10 AND coalesce(t2.b, 0) < 10 ORDER BY t1.a, t2.a;
|
|
|
|
-- 3-way join to test the NULL partition of a join relation
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c, t3.a, t3.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) LEFT JOIN plt1_adv t3 ON (t1.a = t3.a AND t1.c = t3.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c, t3.a, t3.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) LEFT JOIN plt1_adv t3 ON (t1.a = t3.a AND t1.c = t3.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
DROP TABLE plt1_adv_extra;
|
|
DROP TABLE plt2_adv_extra;
|
|
|
|
-- Test default partitions
|
|
ALTER TABLE plt1_adv DETACH PARTITION plt1_adv_p1;
|
|
-- Change plt1_adv_p1 to the default partition
|
|
ALTER TABLE plt1_adv ATTACH PARTITION plt1_adv_p1 DEFAULT;
|
|
DROP TABLE plt1_adv_p3;
|
|
ANALYZE plt1_adv;
|
|
|
|
DROP TABLE plt2_adv_p3;
|
|
ANALYZE plt2_adv;
|
|
|
|
-- We can do partitioned join even if only one of relations has the default
|
|
-- partition
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
ALTER TABLE plt2_adv DETACH PARTITION plt2_adv_p2;
|
|
-- Change plt2_adv_p2 to contain '0005' in addition to '0004' and '0006' as
|
|
-- the key values
|
|
CREATE TABLE plt2_adv_p2_ext PARTITION OF plt2_adv FOR VALUES IN ('0004', '0005', '0006');
|
|
INSERT INTO plt2_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (4, 5, 6);
|
|
ANALYZE plt2_adv;
|
|
|
|
-- Partitioned join can't be applied because the default partition of plt1_adv
|
|
-- matches plt2_adv_p1 and plt2_adv_p2_ext
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
ALTER TABLE plt2_adv DETACH PARTITION plt2_adv_p2_ext;
|
|
-- Change plt2_adv_p2_ext to the default partition
|
|
ALTER TABLE plt2_adv ATTACH PARTITION plt2_adv_p2_ext DEFAULT;
|
|
ANALYZE plt2_adv;
|
|
|
|
-- Partitioned join can't be applied because the default partition of plt1_adv
|
|
-- matches plt2_adv_p1 and plt2_adv_p2_ext
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
DROP TABLE plt2_adv_p2_ext;
|
|
-- Restore plt2_adv_p2
|
|
ALTER TABLE plt2_adv ATTACH PARTITION plt2_adv_p2 FOR VALUES IN ('0004', '0006');
|
|
ANALYZE plt2_adv;
|
|
|
|
CREATE TABLE plt3_adv (a int, b int, c text) PARTITION BY LIST (c);
|
|
CREATE TABLE plt3_adv_p1 PARTITION OF plt3_adv FOR VALUES IN ('0004', '0006');
|
|
CREATE TABLE plt3_adv_p2 PARTITION OF plt3_adv FOR VALUES IN ('0007', '0009');
|
|
INSERT INTO plt3_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (4, 6, 7, 9);
|
|
ANALYZE plt3_adv;
|
|
|
|
-- 3-way join to test the default partition of a join relation
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c, t3.a, t3.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) LEFT JOIN plt3_adv t3 ON (t1.a = t3.a AND t1.c = t3.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c, t3.a, t3.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) LEFT JOIN plt3_adv t3 ON (t1.a = t3.a AND t1.c = t3.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
-- Test cases where one side has the default partition while the other side
|
|
-- has the NULL partition
|
|
DROP TABLE plt2_adv_p1;
|
|
-- Add the NULL partition to plt2_adv
|
|
CREATE TABLE plt2_adv_p1_null PARTITION OF plt2_adv FOR VALUES IN (NULL, '0001', '0003');
|
|
INSERT INTO plt2_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (1, 3);
|
|
INSERT INTO plt2_adv VALUES (-1, -1, NULL);
|
|
ANALYZE plt2_adv;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
DROP TABLE plt2_adv_p1_null;
|
|
-- Add the NULL partition that contains only NULL values as the key values
|
|
CREATE TABLE plt2_adv_p1_null PARTITION OF plt2_adv FOR VALUES IN (NULL);
|
|
INSERT INTO plt2_adv VALUES (-1, -1, NULL);
|
|
ANALYZE plt2_adv;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.b < 10 ORDER BY t1.a;
|
|
|
|
DROP TABLE plt1_adv;
|
|
DROP TABLE plt2_adv;
|
|
DROP TABLE plt3_adv;
|
|
|
|
-- Test interaction of partitioned join with partition pruning
|
|
CREATE TABLE plt1_adv (a int, b int, c text) PARTITION BY LIST (c);
|
|
CREATE TABLE plt1_adv_p1 PARTITION OF plt1_adv FOR VALUES IN ('0001');
|
|
CREATE TABLE plt1_adv_p2 PARTITION OF plt1_adv FOR VALUES IN ('0002');
|
|
CREATE TABLE plt1_adv_p3 PARTITION OF plt1_adv FOR VALUES IN ('0003');
|
|
CREATE TABLE plt1_adv_p4 PARTITION OF plt1_adv FOR VALUES IN (NULL, '0004', '0005');
|
|
INSERT INTO plt1_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (1, 2, 3, 4, 5);
|
|
INSERT INTO plt1_adv VALUES (-1, -1, NULL);
|
|
ANALYZE plt1_adv;
|
|
|
|
CREATE TABLE plt2_adv (a int, b int, c text) PARTITION BY LIST (c);
|
|
CREATE TABLE plt2_adv_p1 PARTITION OF plt2_adv FOR VALUES IN ('0001', '0002');
|
|
CREATE TABLE plt2_adv_p2 PARTITION OF plt2_adv FOR VALUES IN (NULL);
|
|
CREATE TABLE plt2_adv_p3 PARTITION OF plt2_adv FOR VALUES IN ('0003');
|
|
CREATE TABLE plt2_adv_p4 PARTITION OF plt2_adv FOR VALUES IN ('0004', '0005');
|
|
INSERT INTO plt2_adv SELECT i, i, to_char(i % 10, 'FM0000') FROM generate_series(1, 299) i WHERE i % 10 IN (1, 2, 3, 4, 5);
|
|
INSERT INTO plt2_adv VALUES (-1, -1, NULL);
|
|
ANALYZE plt2_adv;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.c IN ('0003', '0004', '0005') AND t1.b < 10 ORDER BY t1.a;
|
|
SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.c IN ('0003', '0004', '0005') AND t1.b < 10 ORDER BY t1.a;
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.c IS NULL AND t1.b < 10 ORDER BY t1.a;
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SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.c IS NULL AND t1.b < 10 ORDER BY t1.a;
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CREATE TABLE plt1_adv_default PARTITION OF plt1_adv DEFAULT;
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ANALYZE plt1_adv;
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CREATE TABLE plt2_adv_default PARTITION OF plt2_adv DEFAULT;
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ANALYZE plt2_adv;
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.c IN ('0003', '0004', '0005') AND t1.b < 10 ORDER BY t1.a;
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SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 INNER JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.c IN ('0003', '0004', '0005') AND t1.b < 10 ORDER BY t1.a;
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.c IS NULL AND t1.b < 10 ORDER BY t1.a;
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SELECT t1.a, t1.c, t2.a, t2.c FROM plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE t1.c IS NULL AND t1.b < 10 ORDER BY t1.a;
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DROP TABLE plt1_adv;
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DROP TABLE plt2_adv;
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-- Test the process_outer_partition() code path
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CREATE TABLE plt1_adv (a int, b int, c text) PARTITION BY LIST (c);
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CREATE TABLE plt1_adv_p1 PARTITION OF plt1_adv FOR VALUES IN ('0000', '0001', '0002');
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CREATE TABLE plt1_adv_p2 PARTITION OF plt1_adv FOR VALUES IN ('0003', '0004');
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INSERT INTO plt1_adv SELECT i, i, to_char(i % 5, 'FM0000') FROM generate_series(0, 24) i;
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ANALYZE plt1_adv;
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CREATE TABLE plt2_adv (a int, b int, c text) PARTITION BY LIST (c);
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CREATE TABLE plt2_adv_p1 PARTITION OF plt2_adv FOR VALUES IN ('0002');
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CREATE TABLE plt2_adv_p2 PARTITION OF plt2_adv FOR VALUES IN ('0003', '0004');
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INSERT INTO plt2_adv SELECT i, i, to_char(i % 5, 'FM0000') FROM generate_series(0, 24) i WHERE i % 5 IN (2, 3, 4);
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ANALYZE plt2_adv;
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CREATE TABLE plt3_adv (a int, b int, c text) PARTITION BY LIST (c);
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CREATE TABLE plt3_adv_p1 PARTITION OF plt3_adv FOR VALUES IN ('0001');
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CREATE TABLE plt3_adv_p2 PARTITION OF plt3_adv FOR VALUES IN ('0003', '0004');
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INSERT INTO plt3_adv SELECT i, i, to_char(i % 5, 'FM0000') FROM generate_series(0, 24) i WHERE i % 5 IN (1, 3, 4);
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ANALYZE plt3_adv;
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-- This tests that when merging partitions from plt1_adv and plt2_adv in
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-- merge_list_bounds(), process_outer_partition() returns an already-assigned
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-- merged partition when re-called with plt1_adv_p1 for the second list value
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-- '0001' of that partition
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EXPLAIN (COSTS OFF)
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SELECT t1.a, t1.c, t2.a, t2.c, t3.a, t3.c FROM (plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.c = t2.c)) FULL JOIN plt3_adv t3 ON (t1.c = t3.c) WHERE coalesce(t1.a, 0) % 5 != 3 AND coalesce(t1.a, 0) % 5 != 4 ORDER BY t1.c, t1.a, t2.a, t3.a;
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SELECT t1.a, t1.c, t2.a, t2.c, t3.a, t3.c FROM (plt1_adv t1 LEFT JOIN plt2_adv t2 ON (t1.c = t2.c)) FULL JOIN plt3_adv t3 ON (t1.c = t3.c) WHERE coalesce(t1.a, 0) % 5 != 3 AND coalesce(t1.a, 0) % 5 != 4 ORDER BY t1.c, t1.a, t2.a, t3.a;
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DROP TABLE plt1_adv;
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DROP TABLE plt2_adv;
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DROP TABLE plt3_adv;
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-- Tests for multi-level partitioned tables
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CREATE TABLE alpha (a double precision, b int, c text) PARTITION BY RANGE (a);
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CREATE TABLE alpha_neg PARTITION OF alpha FOR VALUES FROM ('-Infinity') TO (0) PARTITION BY RANGE (b);
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CREATE TABLE alpha_pos PARTITION OF alpha FOR VALUES FROM (0) TO (10.0) PARTITION BY LIST (c);
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CREATE TABLE alpha_neg_p1 PARTITION OF alpha_neg FOR VALUES FROM (100) TO (200);
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CREATE TABLE alpha_neg_p2 PARTITION OF alpha_neg FOR VALUES FROM (200) TO (300);
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CREATE TABLE alpha_neg_p3 PARTITION OF alpha_neg FOR VALUES FROM (300) TO (400);
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CREATE TABLE alpha_pos_p1 PARTITION OF alpha_pos FOR VALUES IN ('0001', '0003');
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CREATE TABLE alpha_pos_p2 PARTITION OF alpha_pos FOR VALUES IN ('0004', '0006');
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CREATE TABLE alpha_pos_p3 PARTITION OF alpha_pos FOR VALUES IN ('0008', '0009');
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INSERT INTO alpha_neg SELECT -1.0, i, to_char(i % 10, 'FM0000') FROM generate_series(100, 399) i WHERE i % 10 IN (1, 3, 4, 6, 8, 9);
|
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INSERT INTO alpha_pos SELECT 1.0, i, to_char(i % 10, 'FM0000') FROM generate_series(100, 399) i WHERE i % 10 IN (1, 3, 4, 6, 8, 9);
|
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ANALYZE alpha;
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CREATE TABLE beta (a double precision, b int, c text) PARTITION BY RANGE (a);
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CREATE TABLE beta_neg PARTITION OF beta FOR VALUES FROM (-10.0) TO (0) PARTITION BY RANGE (b);
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CREATE TABLE beta_pos PARTITION OF beta FOR VALUES FROM (0) TO ('Infinity') PARTITION BY LIST (c);
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CREATE TABLE beta_neg_p1 PARTITION OF beta_neg FOR VALUES FROM (100) TO (150);
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CREATE TABLE beta_neg_p2 PARTITION OF beta_neg FOR VALUES FROM (200) TO (300);
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CREATE TABLE beta_neg_p3 PARTITION OF beta_neg FOR VALUES FROM (350) TO (500);
|
|
CREATE TABLE beta_pos_p1 PARTITION OF beta_pos FOR VALUES IN ('0002', '0003');
|
|
CREATE TABLE beta_pos_p2 PARTITION OF beta_pos FOR VALUES IN ('0004', '0006');
|
|
CREATE TABLE beta_pos_p3 PARTITION OF beta_pos FOR VALUES IN ('0007', '0009');
|
|
INSERT INTO beta_neg SELECT -1.0, i, to_char(i % 10, 'FM0000') FROM generate_series(100, 149) i WHERE i % 10 IN (2, 3, 4, 6, 7, 9);
|
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INSERT INTO beta_neg SELECT -1.0, i, to_char(i % 10, 'FM0000') FROM generate_series(200, 299) i WHERE i % 10 IN (2, 3, 4, 6, 7, 9);
|
|
INSERT INTO beta_neg SELECT -1.0, i, to_char(i % 10, 'FM0000') FROM generate_series(350, 499) i WHERE i % 10 IN (2, 3, 4, 6, 7, 9);
|
|
INSERT INTO beta_pos SELECT 1.0, i, to_char(i % 10, 'FM0000') FROM generate_series(100, 149) i WHERE i % 10 IN (2, 3, 4, 6, 7, 9);
|
|
INSERT INTO beta_pos SELECT 1.0, i, to_char(i % 10, 'FM0000') FROM generate_series(200, 299) i WHERE i % 10 IN (2, 3, 4, 6, 7, 9);
|
|
INSERT INTO beta_pos SELECT 1.0, i, to_char(i % 10, 'FM0000') FROM generate_series(350, 499) i WHERE i % 10 IN (2, 3, 4, 6, 7, 9);
|
|
ANALYZE beta;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.*, t2.* FROM alpha t1 INNER JOIN beta t2 ON (t1.a = t2.a AND t1.b = t2.b) WHERE t1.b >= 125 AND t1.b < 225 ORDER BY t1.a, t1.b;
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|
SELECT t1.*, t2.* FROM alpha t1 INNER JOIN beta t2 ON (t1.a = t2.a AND t1.b = t2.b) WHERE t1.b >= 125 AND t1.b < 225 ORDER BY t1.a, t1.b;
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|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.*, t2.* FROM alpha t1 INNER JOIN beta t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE ((t1.b >= 100 AND t1.b < 110) OR (t1.b >= 200 AND t1.b < 210)) AND ((t2.b >= 100 AND t2.b < 110) OR (t2.b >= 200 AND t2.b < 210)) AND t1.c IN ('0004', '0009') ORDER BY t1.a, t1.b, t2.b;
|
|
SELECT t1.*, t2.* FROM alpha t1 INNER JOIN beta t2 ON (t1.a = t2.a AND t1.c = t2.c) WHERE ((t1.b >= 100 AND t1.b < 110) OR (t1.b >= 200 AND t1.b < 210)) AND ((t2.b >= 100 AND t2.b < 110) OR (t2.b >= 200 AND t2.b < 210)) AND t1.c IN ('0004', '0009') ORDER BY t1.a, t1.b, t2.b;
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|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT t1.*, t2.* FROM alpha t1 INNER JOIN beta t2 ON (t1.a = t2.a AND t1.b = t2.b AND t1.c = t2.c) WHERE ((t1.b >= 100 AND t1.b < 110) OR (t1.b >= 200 AND t1.b < 210)) AND ((t2.b >= 100 AND t2.b < 110) OR (t2.b >= 200 AND t2.b < 210)) AND t1.c IN ('0004', '0009') ORDER BY t1.a, t1.b;
|
|
SELECT t1.*, t2.* FROM alpha t1 INNER JOIN beta t2 ON (t1.a = t2.a AND t1.b = t2.b AND t1.c = t2.c) WHERE ((t1.b >= 100 AND t1.b < 110) OR (t1.b >= 200 AND t1.b < 210)) AND ((t2.b >= 100 AND t2.b < 110) OR (t2.b >= 200 AND t2.b < 210)) AND t1.c IN ('0004', '0009') ORDER BY t1.a, t1.b;
|
|
|
|
-- partitionwise join with fractional paths
|
|
CREATE TABLE fract_t (id BIGINT, PRIMARY KEY (id)) PARTITION BY RANGE (id);
|
|
CREATE TABLE fract_t0 PARTITION OF fract_t FOR VALUES FROM ('0') TO ('1000');
|
|
CREATE TABLE fract_t1 PARTITION OF fract_t FOR VALUES FROM ('1000') TO ('2000');
|
|
|
|
-- insert data
|
|
INSERT INTO fract_t (id) (SELECT generate_series(0, 1999));
|
|
ANALYZE fract_t;
|
|
|
|
-- verify plan; nested index only scans
|
|
SET max_parallel_workers_per_gather = 0;
|
|
SET enable_partitionwise_join = on;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT x.id, y.id FROM fract_t x LEFT JOIN fract_t y USING (id) ORDER BY x.id ASC LIMIT 10;
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT x.id, y.id FROM fract_t x LEFT JOIN fract_t y USING (id) ORDER BY x.id DESC LIMIT 10;
|
|
|
|
-- cleanup
|
|
DROP TABLE fract_t;
|
|
|
|
RESET max_parallel_workers_per_gather;
|
|
RESET enable_partitionwise_join;
|