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Improve stability fix for partition_aggregate test.
Instead of disabling autovacuum on these test tables, adjust the partition boundaries so that the child partitions are not all the same size. That should cause the planner to use a predictable ordering of the per-partition scan nodes even in cases where autovacuum causes the rowcount estimates to be off a bit. Moreover, this also lets these tests show that the planner does properly order the tables in descending size order, something that wasn't being proven before. The pagg_tab1 and pagg_tab2 partitions are still all the same size, but that should be fine, because those tables are so small that (1) autovacuum won't fire on them, and (2) even if it did, it couldn't change the reltuples value --- with only one page, it can't see just part of the relation. Discussion: https://postgr.es/m/24467.1585838693@sss.pgh.pa.us
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‎src/test/regress/expected/partition_aggregate.out‎

Lines changed: 31 additions & 31 deletions
Original file line numberDiff line numberDiff line change
@@ -2,9 +2,9 @@
22
-- PARTITION_AGGREGATE
33
-- Test partitionwise aggregation on partitioned tables
44
--
5-
-- Note: Various tests located within are sensitive to tables being
6-
-- auto-vacuumed while the tests are running. For this reason we
7-
-- run autovacuum_enabled = off for all tables.
5+
-- Note: to ensure plan stability, it's a good idea to make the partitions of
6+
-- any one partitioned table in this test all have different numbers of rows.
7+
--
88
-- Enable partitionwise aggregate, which by default is disabled.
99
SET enable_partitionwise_aggregate TO true;
1010
-- Enable partitionwise join, which by default is disabled.
@@ -15,9 +15,9 @@ SET max_parallel_workers_per_gather TO 0;
1515
-- Tests for list partitioned tables.
1616
--
1717
CREATE TABLE pagg_tab (a int, b int, c text, d int) PARTITION BY LIST(c);
18-
CREATE TABLE pagg_tab_p1 PARTITION OF pagg_tab FOR VALUES IN ('0000', '0001', '0002', '0003') WITH (autovacuum_enabled = off);
19-
CREATE TABLE pagg_tab_p2 PARTITION OF pagg_tab FOR VALUES IN ('0004', '0005', '0006', '0007') WITH (autovacuum_enabled = off);
20-
CREATE TABLE pagg_tab_p3 PARTITION OF pagg_tab FOR VALUES IN ('0008', '0009', '0010', '0011') WITH (autovacuum_enabled = off);
18+
CREATE TABLE pagg_tab_p1 PARTITION OF pagg_tab FOR VALUES IN ('0000', '0001', '0002', '0003', '0004');
19+
CREATE TABLE pagg_tab_p2 PARTITION OF pagg_tab FOR VALUES IN ('0005', '0006', '0007', '0008');
20+
CREATE TABLE pagg_tab_p3 PARTITION OF pagg_tab FOR VALUES IN ('0009', '0010', '0011');
2121
INSERT INTO pagg_tab SELECT i % 20, i % 30, to_char(i % 12, 'FM0000'), i % 30 FROM generate_series(0, 2999) i;
2222
ANALYZE pagg_tab;
2323
-- When GROUP BY clause matches; full aggregation is performed for each partition.
@@ -400,13 +400,13 @@ SELECT a, sum(b order by a) FROM pagg_tab GROUP BY a ORDER BY 1, 2;
400400

401401
-- JOIN query
402402
CREATE TABLE pagg_tab1(x int, y int) PARTITION BY RANGE(x);
403-
CREATE TABLE pagg_tab1_p1 PARTITION OF pagg_tab1 FOR VALUES FROM (0) TO (10) WITH (autovacuum_enabled = off);
404-
CREATE TABLE pagg_tab1_p2 PARTITION OF pagg_tab1 FOR VALUES FROM (10) TO (20) WITH (autovacuum_enabled = off);
405-
CREATE TABLE pagg_tab1_p3 PARTITION OF pagg_tab1 FOR VALUES FROM (20) TO (30) WITH (autovacuum_enabled = off);
403+
CREATE TABLE pagg_tab1_p1 PARTITION OF pagg_tab1 FOR VALUES FROM (0) TO (10);
404+
CREATE TABLE pagg_tab1_p2 PARTITION OF pagg_tab1 FOR VALUES FROM (10) TO (20);
405+
CREATE TABLE pagg_tab1_p3 PARTITION OF pagg_tab1 FOR VALUES FROM (20) TO (30);
406406
CREATE TABLE pagg_tab2(x int, y int) PARTITION BY RANGE(y);
407-
CREATE TABLE pagg_tab2_p1 PARTITION OF pagg_tab2 FOR VALUES FROM (0) TO (10) WITH (autovacuum_enabled = off);
408-
CREATE TABLE pagg_tab2_p2 PARTITION OF pagg_tab2 FOR VALUES FROM (10) TO (20) WITH (autovacuum_enabled = off);
409-
CREATE TABLE pagg_tab2_p3 PARTITION OF pagg_tab2 FOR VALUES FROM (20) TO (30) WITH (autovacuum_enabled = off);
407+
CREATE TABLE pagg_tab2_p1 PARTITION OF pagg_tab2 FOR VALUES FROM (0) TO (10);
408+
CREATE TABLE pagg_tab2_p2 PARTITION OF pagg_tab2 FOR VALUES FROM (10) TO (20);
409+
CREATE TABLE pagg_tab2_p3 PARTITION OF pagg_tab2 FOR VALUES FROM (20) TO (30);
410410
INSERT INTO pagg_tab1 SELECT i % 30, i % 20 FROM generate_series(0, 299, 2) i;
411411
INSERT INTO pagg_tab2 SELECT i % 20, i % 30 FROM generate_series(0, 299, 3) i;
412412
ANALYZE pagg_tab1;
@@ -820,9 +820,9 @@ SELECT a.x, a.y, count(*) FROM (SELECT * FROM pagg_tab1 WHERE x = 1 AND x = 2) a
820820

821821
-- Partition by multiple columns
822822
CREATE TABLE pagg_tab_m (a int, b int, c int) PARTITION BY RANGE(a, ((a+b)/2));
823-
CREATE TABLE pagg_tab_m_p1 PARTITION OF pagg_tab_m FOR VALUES FROM (0, 0) TO (10, 10) WITH (autovacuum_enabled = off);
824-
CREATE TABLE pagg_tab_m_p2 PARTITION OF pagg_tab_m FOR VALUES FROM (10, 10) TO (20, 20) WITH (autovacuum_enabled = off);
825-
CREATE TABLE pagg_tab_m_p3 PARTITION OF pagg_tab_m FOR VALUES FROM (20, 20) TO (30, 30) WITH (autovacuum_enabled = off);
823+
CREATE TABLE pagg_tab_m_p1 PARTITION OF pagg_tab_m FOR VALUES FROM (0, 0) TO (12, 12);
824+
CREATE TABLE pagg_tab_m_p2 PARTITION OF pagg_tab_m FOR VALUES FROM (12, 12) TO (22, 22);
825+
CREATE TABLE pagg_tab_m_p3 PARTITION OF pagg_tab_m FOR VALUES FROM (22, 22) TO (30, 30);
826826
INSERT INTO pagg_tab_m SELECT i % 30, i % 40, i % 50 FROM generate_series(0, 2999) i;
827827
ANALYZE pagg_tab_m;
828828
-- Partial aggregation as GROUP BY clause does not match with PARTITION KEY
@@ -926,15 +926,15 @@ SELECT a, c, sum(b), avg(c), count(*) FROM pagg_tab_m GROUP BY (a+b)/2, 2, 1 HAV
926926

927927
-- Test with multi-level partitioning scheme
928928
CREATE TABLE pagg_tab_ml (a int, b int, c text) PARTITION BY RANGE(a);
929-
CREATE TABLE pagg_tab_ml_p1 PARTITION OF pagg_tab_ml FOR VALUES FROM (0) TO (10) WITH (autovacuum_enabled = off);
929+
CREATE TABLE pagg_tab_ml_p1 PARTITION OF pagg_tab_ml FOR VALUES FROM (0) TO (10);
930930
CREATE TABLE pagg_tab_ml_p2 PARTITION OF pagg_tab_ml FOR VALUES FROM (10) TO (20) PARTITION BY LIST (c);
931-
CREATE TABLE pagg_tab_ml_p2_s1 PARTITION OF pagg_tab_ml_p2 FOR VALUES IN ('0000', '0001') WITH (autovacuum_enabled = off);
932-
CREATE TABLE pagg_tab_ml_p2_s2 PARTITION OF pagg_tab_ml_p2 FOR VALUES IN ('0002', '0003') WITH (autovacuum_enabled = off);
931+
CREATE TABLE pagg_tab_ml_p2_s1 PARTITION OF pagg_tab_ml_p2 FOR VALUES IN ('0000', '0001', '0002');
932+
CREATE TABLE pagg_tab_ml_p2_s2 PARTITION OF pagg_tab_ml_p2 FOR VALUES IN ('0003');
933933
-- This level of partitioning has different column positions than the parent
934934
CREATE TABLE pagg_tab_ml_p3(b int, c text, a int) PARTITION BY RANGE (b);
935-
CREATE TABLE pagg_tab_ml_p3_s1(c text, a int, b int) WITH (autovacuum_enabled = off);
936-
CREATE TABLE pagg_tab_ml_p3_s2 PARTITION OF pagg_tab_ml_p3 FOR VALUES FROM (5) TO (10) WITH (autovacuum_enabled = off);
937-
ALTER TABLE pagg_tab_ml_p3 ATTACH PARTITION pagg_tab_ml_p3_s1 FOR VALUES FROM (0) TO (5);
935+
CREATE TABLE pagg_tab_ml_p3_s1(c text, a int, b int);
936+
CREATE TABLE pagg_tab_ml_p3_s2 PARTITION OF pagg_tab_ml_p3 FOR VALUES FROM (7) TO (10);
937+
ALTER TABLE pagg_tab_ml_p3 ATTACH PARTITION pagg_tab_ml_p3_s1 FOR VALUES FROM (0) TO (7);
938938
ALTER TABLE pagg_tab_ml ATTACH PARTITION pagg_tab_ml_p3 FOR VALUES FROM (20) TO (30);
939939
INSERT INTO pagg_tab_ml SELECT i % 30, i % 10, to_char(i % 4, 'FM0000') FROM generate_series(0, 29999) i;
940940
ANALYZE pagg_tab_ml;
@@ -1252,15 +1252,15 @@ SELECT b, sum(a), count(*) FROM pagg_tab_ml GROUP BY b ORDER BY 1, 2, 3;
12521252
-> Partial HashAggregate
12531253
Group Key: pagg_tab_ml_1.b
12541254
-> Parallel Seq Scan on pagg_tab_ml_p2_s1 pagg_tab_ml_1
1255-
-> Partial HashAggregate
1256-
Group Key: pagg_tab_ml_2.b
1257-
-> Parallel Seq Scan on pagg_tab_ml_p2_s2 pagg_tab_ml_2
12581255
-> Partial HashAggregate
12591256
Group Key: pagg_tab_ml_3.b
12601257
-> Parallel Seq Scan on pagg_tab_ml_p3_s1 pagg_tab_ml_3
12611258
-> Partial HashAggregate
12621259
Group Key: pagg_tab_ml_4.b
12631260
-> Parallel Seq Scan on pagg_tab_ml_p3_s2 pagg_tab_ml_4
1261+
-> Partial HashAggregate
1262+
Group Key: pagg_tab_ml_2.b
1263+
-> Parallel Seq Scan on pagg_tab_ml_p2_s2 pagg_tab_ml_2
12641264
(24 rows)
12651265

12661266
SELECT b, sum(a), count(*) FROM pagg_tab_ml GROUP BY b HAVING avg(a) < 15 ORDER BY 1, 2, 3;
@@ -1291,10 +1291,6 @@ SELECT a, sum(b), count(*) FROM pagg_tab_ml GROUP BY a, b, c HAVING avg(b) > 7 O
12911291
Group Key: pagg_tab_ml_1.a, pagg_tab_ml_1.b, pagg_tab_ml_1.c
12921292
Filter: (avg(pagg_tab_ml_1.b) > '7'::numeric)
12931293
-> Seq Scan on pagg_tab_ml_p2_s1 pagg_tab_ml_1
1294-
-> HashAggregate
1295-
Group Key: pagg_tab_ml_2.a, pagg_tab_ml_2.b, pagg_tab_ml_2.c
1296-
Filter: (avg(pagg_tab_ml_2.b) > '7'::numeric)
1297-
-> Seq Scan on pagg_tab_ml_p2_s2 pagg_tab_ml_2
12981294
-> HashAggregate
12991295
Group Key: pagg_tab_ml_3.a, pagg_tab_ml_3.b, pagg_tab_ml_3.c
13001296
Filter: (avg(pagg_tab_ml_3.b) > '7'::numeric)
@@ -1303,6 +1299,10 @@ SELECT a, sum(b), count(*) FROM pagg_tab_ml GROUP BY a, b, c HAVING avg(b) > 7 O
13031299
Group Key: pagg_tab_ml_4.a, pagg_tab_ml_4.b, pagg_tab_ml_4.c
13041300
Filter: (avg(pagg_tab_ml_4.b) > '7'::numeric)
13051301
-> Seq Scan on pagg_tab_ml_p3_s2 pagg_tab_ml_4
1302+
-> HashAggregate
1303+
Group Key: pagg_tab_ml_2.a, pagg_tab_ml_2.b, pagg_tab_ml_2.c
1304+
Filter: (avg(pagg_tab_ml_2.b) > '7'::numeric)
1305+
-> Seq Scan on pagg_tab_ml_p2_s2 pagg_tab_ml_2
13061306
(25 rows)
13071307

13081308
SELECT a, sum(b), count(*) FROM pagg_tab_ml GROUP BY a, b, c HAVING avg(b) > 7 ORDER BY 1, 2, 3;
@@ -1332,9 +1332,9 @@ SELECT a, sum(b), count(*) FROM pagg_tab_ml GROUP BY a, b, c HAVING avg(b) > 7 O
13321332
-- costing such plans.
13331333
SET parallel_setup_cost TO 10;
13341334
CREATE TABLE pagg_tab_para(x int, y int) PARTITION BY RANGE(x);
1335-
CREATE TABLE pagg_tab_para_p1 PARTITION OF pagg_tab_para FOR VALUES FROM (0) TO (10) WITH (autovacuum_enabled = off);
1336-
CREATE TABLE pagg_tab_para_p2 PARTITION OF pagg_tab_para FOR VALUES FROM (10) TO (20) WITH (autovacuum_enabled = off);
1337-
CREATE TABLE pagg_tab_para_p3 PARTITION OF pagg_tab_para FOR VALUES FROM (20) TO (30) WITH (autovacuum_enabled = off);
1335+
CREATE TABLE pagg_tab_para_p1 PARTITION OF pagg_tab_para FOR VALUES FROM (0) TO (12);
1336+
CREATE TABLE pagg_tab_para_p2 PARTITION OF pagg_tab_para FOR VALUES FROM (12) TO (22);
1337+
CREATE TABLE pagg_tab_para_p3 PARTITION OF pagg_tab_para FOR VALUES FROM (22) TO (30);
13381338
INSERT INTO pagg_tab_para SELECT i % 30, i % 20 FROM generate_series(0, 29999) i;
13391339
ANALYZE pagg_tab_para;
13401340
-- When GROUP BY clause matches; full aggregation is performed for each partition.

‎src/test/regress/sql/partition_aggregate.sql‎

Lines changed: 24 additions & 24 deletions
Original file line numberDiff line numberDiff line change
@@ -2,9 +2,9 @@
22
-- PARTITION_AGGREGATE
33
-- Test partitionwise aggregation on partitioned tables
44
--
5-
-- Note: Various tests located within are sensitive to tables being
6-
-- auto-vacuumed while the tests are running. For this reason we
7-
-- run autovacuum_enabled = off for all tables.
5+
-- Note: to ensure plan stability, it's a good idea to make the partitions of
6+
-- any one partitioned table in this test all have different numbers of rows.
7+
--
88

99
-- Enable partitionwise aggregate, which by default is disabled.
1010
SET enable_partitionwise_aggregate TO true;
@@ -17,9 +17,9 @@ SET max_parallel_workers_per_gather TO 0;
1717
-- Tests for list partitioned tables.
1818
--
1919
CREATE TABLE pagg_tab (a int, b int, c text, d int) PARTITION BY LIST(c);
20-
CREATE TABLE pagg_tab_p1 PARTITION OF pagg_tab FOR VALUES IN ('0000', '0001', '0002', '0003') WITH (autovacuum_enabled = off);
21-
CREATE TABLE pagg_tab_p2 PARTITION OF pagg_tab FOR VALUES IN ('0004', '0005', '0006', '0007') WITH (autovacuum_enabled = off);
22-
CREATE TABLE pagg_tab_p3 PARTITION OF pagg_tab FOR VALUES IN ('0008', '0009', '0010', '0011') WITH (autovacuum_enabled = off);
20+
CREATE TABLE pagg_tab_p1 PARTITION OF pagg_tab FOR VALUES IN ('0000', '0001', '0002', '0003', '0004');
21+
CREATE TABLE pagg_tab_p2 PARTITION OF pagg_tab FOR VALUES IN ('0005', '0006', '0007', '0008');
22+
CREATE TABLE pagg_tab_p3 PARTITION OF pagg_tab FOR VALUES IN ('0009', '0010', '0011');
2323
INSERT INTO pagg_tab SELECT i % 20, i % 30, to_char(i % 12, 'FM0000'), i % 30 FROM generate_series(0, 2999) i;
2424
ANALYZE pagg_tab;
2525

@@ -94,14 +94,14 @@ SELECT a, sum(b order by a) FROM pagg_tab GROUP BY a ORDER BY 1, 2;
9494
-- JOIN query
9595

9696
CREATE TABLE pagg_tab1(x int, y int) PARTITION BY RANGE(x);
97-
CREATE TABLE pagg_tab1_p1 PARTITION OF pagg_tab1 FOR VALUES FROM (0) TO (10) WITH (autovacuum_enabled = off);
98-
CREATE TABLE pagg_tab1_p2 PARTITION OF pagg_tab1 FOR VALUES FROM (10) TO (20) WITH (autovacuum_enabled = off);
99-
CREATE TABLE pagg_tab1_p3 PARTITION OF pagg_tab1 FOR VALUES FROM (20) TO (30) WITH (autovacuum_enabled = off);
97+
CREATE TABLE pagg_tab1_p1 PARTITION OF pagg_tab1 FOR VALUES FROM (0) TO (10);
98+
CREATE TABLE pagg_tab1_p2 PARTITION OF pagg_tab1 FOR VALUES FROM (10) TO (20);
99+
CREATE TABLE pagg_tab1_p3 PARTITION OF pagg_tab1 FOR VALUES FROM (20) TO (30);
100100

101101
CREATE TABLE pagg_tab2(x int, y int) PARTITION BY RANGE(y);
102-
CREATE TABLE pagg_tab2_p1 PARTITION OF pagg_tab2 FOR VALUES FROM (0) TO (10) WITH (autovacuum_enabled = off);
103-
CREATE TABLE pagg_tab2_p2 PARTITION OF pagg_tab2 FOR VALUES FROM (10) TO (20) WITH (autovacuum_enabled = off);
104-
CREATE TABLE pagg_tab2_p3 PARTITION OF pagg_tab2 FOR VALUES FROM (20) TO (30) WITH (autovacuum_enabled = off);
102+
CREATE TABLE pagg_tab2_p1 PARTITION OF pagg_tab2 FOR VALUES FROM (0) TO (10);
103+
CREATE TABLE pagg_tab2_p2 PARTITION OF pagg_tab2 FOR VALUES FROM (10) TO (20);
104+
CREATE TABLE pagg_tab2_p3 PARTITION OF pagg_tab2 FOR VALUES FROM (20) TO (30);
105105

106106
INSERT INTO pagg_tab1 SELECT i % 30, i % 20 FROM generate_series(0, 299, 2) i;
107107
INSERT INTO pagg_tab2 SELECT i % 20, i % 30 FROM generate_series(0, 299, 3) i;
@@ -177,9 +177,9 @@ SELECT a.x, a.y, count(*) FROM (SELECT * FROM pagg_tab1 WHERE x = 1 AND x = 2) a
177177
-- Partition by multiple columns
178178

179179
CREATE TABLE pagg_tab_m (a int, b int, c int) PARTITION BY RANGE(a, ((a+b)/2));
180-
CREATE TABLE pagg_tab_m_p1 PARTITION OF pagg_tab_m FOR VALUES FROM (0, 0) TO (10, 10) WITH (autovacuum_enabled = off);
181-
CREATE TABLE pagg_tab_m_p2 PARTITION OF pagg_tab_m FOR VALUES FROM (10, 10) TO (20, 20) WITH (autovacuum_enabled = off);
182-
CREATE TABLE pagg_tab_m_p3 PARTITION OF pagg_tab_m FOR VALUES FROM (20, 20) TO (30, 30) WITH (autovacuum_enabled = off);
180+
CREATE TABLE pagg_tab_m_p1 PARTITION OF pagg_tab_m FOR VALUES FROM (0, 0) TO (12, 12);
181+
CREATE TABLE pagg_tab_m_p2 PARTITION OF pagg_tab_m FOR VALUES FROM (12, 12) TO (22, 22);
182+
CREATE TABLE pagg_tab_m_p3 PARTITION OF pagg_tab_m FOR VALUES FROM (22, 22) TO (30, 30);
183183
INSERT INTO pagg_tab_m SELECT i % 30, i % 40, i % 50 FROM generate_series(0, 2999) i;
184184
ANALYZE pagg_tab_m;
185185

@@ -202,17 +202,17 @@ SELECT a, c, sum(b), avg(c), count(*) FROM pagg_tab_m GROUP BY (a+b)/2, 2, 1 HAV
202202
-- Test with multi-level partitioning scheme
203203

204204
CREATE TABLE pagg_tab_ml (a int, b int, c text) PARTITION BY RANGE(a);
205-
CREATE TABLE pagg_tab_ml_p1 PARTITION OF pagg_tab_ml FOR VALUES FROM (0) TO (10) WITH (autovacuum_enabled = off);
205+
CREATE TABLE pagg_tab_ml_p1 PARTITION OF pagg_tab_ml FOR VALUES FROM (0) TO (10);
206206
CREATE TABLE pagg_tab_ml_p2 PARTITION OF pagg_tab_ml FOR VALUES FROM (10) TO (20) PARTITION BY LIST (c);
207-
CREATE TABLE pagg_tab_ml_p2_s1 PARTITION OF pagg_tab_ml_p2 FOR VALUES IN ('0000', '0001') WITH (autovacuum_enabled = off);
208-
CREATE TABLE pagg_tab_ml_p2_s2 PARTITION OF pagg_tab_ml_p2 FOR VALUES IN ('0002', '0003') WITH (autovacuum_enabled = off);
207+
CREATE TABLE pagg_tab_ml_p2_s1 PARTITION OF pagg_tab_ml_p2 FOR VALUES IN ('0000', '0001', '0002');
208+
CREATE TABLE pagg_tab_ml_p2_s2 PARTITION OF pagg_tab_ml_p2 FOR VALUES IN ('0003');
209209

210210
-- This level of partitioning has different column positions than the parent
211211
CREATE TABLE pagg_tab_ml_p3(b int, c text, a int) PARTITION BY RANGE (b);
212-
CREATE TABLE pagg_tab_ml_p3_s1(c text, a int, b int) WITH (autovacuum_enabled = off);
213-
CREATE TABLE pagg_tab_ml_p3_s2 PARTITION OF pagg_tab_ml_p3 FOR VALUES FROM (5) TO (10) WITH (autovacuum_enabled = off);
212+
CREATE TABLE pagg_tab_ml_p3_s1(c text, a int, b int);
213+
CREATE TABLE pagg_tab_ml_p3_s2 PARTITION OF pagg_tab_ml_p3 FOR VALUES FROM (7) TO (10);
214214

215-
ALTER TABLE pagg_tab_ml_p3 ATTACH PARTITION pagg_tab_ml_p3_s1 FOR VALUES FROM (0) TO (5);
215+
ALTER TABLE pagg_tab_ml_p3 ATTACH PARTITION pagg_tab_ml_p3_s1 FOR VALUES FROM (0) TO (7);
216216
ALTER TABLE pagg_tab_ml ATTACH PARTITION pagg_tab_ml_p3 FOR VALUES FROM (20) TO (30);
217217

218218
INSERT INTO pagg_tab_ml SELECT i % 30, i % 10, to_char(i % 4, 'FM0000') FROM generate_series(0, 29999) i;
@@ -287,9 +287,9 @@ SELECT a, sum(b), count(*) FROM pagg_tab_ml GROUP BY a, b, c HAVING avg(b) > 7 O
287287
SET parallel_setup_cost TO 10;
288288

289289
CREATE TABLE pagg_tab_para(x int, y int) PARTITION BY RANGE(x);
290-
CREATE TABLE pagg_tab_para_p1 PARTITION OF pagg_tab_para FOR VALUES FROM (0) TO (10) WITH (autovacuum_enabled = off);
291-
CREATE TABLE pagg_tab_para_p2 PARTITION OF pagg_tab_para FOR VALUES FROM (10) TO (20) WITH (autovacuum_enabled = off);
292-
CREATE TABLE pagg_tab_para_p3 PARTITION OF pagg_tab_para FOR VALUES FROM (20) TO (30) WITH (autovacuum_enabled = off);
290+
CREATE TABLE pagg_tab_para_p1 PARTITION OF pagg_tab_para FOR VALUES FROM (0) TO (12);
291+
CREATE TABLE pagg_tab_para_p2 PARTITION OF pagg_tab_para FOR VALUES FROM (12) TO (22);
292+
CREATE TABLE pagg_tab_para_p3 PARTITION OF pagg_tab_para FOR VALUES FROM (22) TO (30);
293293

294294
INSERT INTO pagg_tab_para SELECT i % 30, i % 20 FROM generate_series(0, 29999) i;
295295

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