@ -588,6 +588,45 @@ select tableoid::regclass::text as relname, bar.* from bar order by 1,2;
bar2 | 4 | 104
(8 rows)
-- Check UPDATE with *partitioned* inherited target and an appendrel subquery
create table some_tab (a int);
insert into some_tab values (0);
create table some_tab_child () inherits (some_tab);
insert into some_tab_child values (1);
create table parted_tab (a int, b char) partition by list (a);
create table parted_tab_part1 partition of parted_tab for values in (1);
create table parted_tab_part2 partition of parted_tab for values in (2);
create table parted_tab_part3 partition of parted_tab for values in (3);
insert into parted_tab values (1, 'a'), (2, 'a'), (3, 'a');
update parted_tab set b = 'b'
from
(select a from some_tab union all select a+1 from some_tab) ss (a)
where parted_tab.a = ss.a;
select tableoid::regclass::text as relname, parted_tab.* from parted_tab order by 1,2;
relname | a | b
------------------+---+---
parted_tab_part1 | 1 | b
parted_tab_part2 | 2 | b
parted_tab_part3 | 3 | a
(3 rows)
truncate parted_tab;
insert into parted_tab values (1, 'a'), (2, 'a'), (3, 'a');
update parted_tab set b = 'b'
from
(select 0 from parted_tab union all select 1 from parted_tab) ss (a)
where parted_tab.a = ss.a;
select tableoid::regclass::text as relname, parted_tab.* from parted_tab order by 1,2;
relname | a | b
------------------+---+---
parted_tab_part1 | 1 | b
parted_tab_part2 | 2 | a
parted_tab_part3 | 3 | a
(3 rows)
drop table parted_tab;
drop table some_tab cascade;
NOTICE: drop cascades to table some_tab_child
/* Test multiple inheritance of column defaults */
CREATE TABLE firstparent (tomorrow date default now()::date + 1);
CREATE TABLE secondparent (tomorrow date default now() :: date + 1);
@ -1611,71 +1650,60 @@ explain (costs off) select * from list_parted;
QUERY PLAN
--------------------------------
Append
-> Seq Scan on list_parted
-> Seq Scan on part_ab_cd
-> Seq Scan on part_ef_gh
-> Seq Scan on part_null_xy
(5 rows)
(4 rows)
explain (costs off) select * from list_parted where a is null;
QUERY PLAN
--------------------------------
Append
-> Seq Scan on list_parted
Filter: (a IS NULL)
-> Seq Scan on part_null_xy
Filter: (a IS NULL)
(5 rows)
(3 rows)
explain (costs off) select * from list_parted where a is not null;
QUERY PLAN
---------------------------------
Append
-> Seq Scan on list_parted
Filter: (a IS NOT NULL)
-> Seq Scan on part_ab_cd
Filter: (a IS NOT NULL)
-> Seq Scan on part_ef_gh
Filter: (a IS NOT NULL)
-> Seq Scan on part_null_xy
Filter: (a IS NOT NULL)
(9 rows)
(7 rows)
explain (costs off) select * from list_parted where a in ('ab', 'cd', 'ef');
QUERY PLAN
----------------------------------------------------------
Append
-> Seq Scan on list_parted
Filter: ((a)::text = ANY ('{ab,cd,ef}'::text[]))
-> Seq Scan on part_ab_cd
Filter: ((a)::text = ANY ('{ab,cd,ef}'::text[]))
-> Seq Scan on part_ef_gh
Filter: ((a)::text = ANY ('{ab,cd,ef}'::text[]))
(7 rows)
(5 rows)
explain (costs off) select * from list_parted where a = 'ab' or a in (null, 'cd');
QUERY PLAN
---------------------------------------------------------------------------------------
Append
-> Seq Scan on list_parted
Filter: (((a)::text = 'ab'::text) OR ((a)::text = ANY ('{NULL,cd}'::text[])))
-> Seq Scan on part_ab_cd
Filter: (((a)::text = 'ab'::text) OR ((a)::text = ANY ('{NULL,cd}'::text[])))
-> Seq Scan on part_ef_gh
Filter: (((a)::text = 'ab'::text) OR ((a)::text = ANY ('{NULL,cd}'::text[])))
-> Seq Scan on part_null_xy
Filter: (((a)::text = 'ab'::text) OR ((a)::text = ANY ('{NULL,cd}'::text[])))
(9 rows)
(7 rows)
explain (costs off) select * from list_parted where a = 'ab';
QUERY PLAN
------------------------------------------
Append
-> Seq Scan on list_parted
Filter: ((a)::text = 'ab'::text)
-> Seq Scan on part_ab_cd
Filter: ((a)::text = 'ab'::text)
(5 rows)
(3 rows)
create table range_list_parted (
a int,
@ -1695,14 +1723,9 @@ create table part_40_inf_ab partition of part_40_inf for values in ('ab');
create table part_40_inf_cd partition of part_40_inf for values in ('cd');
create table part_40_inf_null partition of part_40_inf for values in (null);
explain (costs off) select * from range_list_parted;
QUERY PLAN
-------------------------------------
QUERY PLAN
------------------------------------
Append
-> Seq Scan on range_list_parted
-> Seq Scan on part_1_10
-> Seq Scan on part_10_20
-> Seq Scan on part_21_30
-> Seq Scan on part_40_inf
-> Seq Scan on part_1_10_ab
-> Seq Scan on part_1_10_cd
-> Seq Scan on part_10_20_ab
@ -1712,36 +1735,22 @@ explain (costs off) select * from range_list_parted;
-> Seq Scan on part_40_inf_ab
-> Seq Scan on part_40_inf_cd
-> Seq Scan on part_40_inf_null
(15 rows)
(10 rows)
explain (costs off) select * from range_list_parted where a = 5;
QUERY PLAN
-------------------------------------
QUERY PLAN
--------------------------------
Append
-> Seq Scan on range_list_parted
Filter: (a = 5)
-> Seq Scan on part_1_10
Filter: (a = 5)
-> Seq Scan on part_1_10_ab
Filter: (a = 5)
-> Seq Scan on part_1_10_cd
Filter: (a = 5)
(9 rows)
(5 rows)
explain (costs off) select * from range_list_parted where b = 'ab';
QUERY PLAN
-------------------------------------
QUERY PLAN
------------------------------------
Append
-> Seq Scan on range_list_parted
Filter: (b = 'ab'::bpchar)
-> Seq Scan on part_1_10
Filter: (b = 'ab'::bpchar)
-> Seq Scan on part_10_20
Filter: (b = 'ab'::bpchar)
-> Seq Scan on part_21_30
Filter: (b = 'ab'::bpchar)
-> Seq Scan on part_40_inf
Filter: (b = 'ab'::bpchar)
-> Seq Scan on part_1_10_ab
Filter: (b = 'ab'::bpchar)
-> Seq Scan on part_10_20_ab
@ -1750,27 +1759,19 @@ explain (costs off) select * from range_list_parted where b = 'ab';
Filter: (b = 'ab'::bpchar)
-> Seq Scan on part_40_inf_ab
Filter: (b = 'ab'::bpchar)
(1 9 rows)
(9 rows)
explain (costs off) select * from range_list_parted where a between 3 and 23 and b in ('ab');
QUERY PLAN
-----------------------------------------------------------------
Append
-> Seq Scan on range_list_parted
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
-> Seq Scan on part_1_10
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
-> Seq Scan on part_10_20
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
-> Seq Scan on part_21_30
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
-> Seq Scan on part_1_10_ab
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
-> Seq Scan on part_10_20_ab
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
-> Seq Scan on part_21_30_ab
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
(15 rows)
(7 rows)
/* Should select no rows because range partition key cannot be null */
explain (costs off) select * from range_list_parted where a is null;
@ -1782,37 +1783,17 @@ explain (costs off) select * from range_list_parted where a is null;
/* Should only select rows from the null-accepting partition */
explain (costs off) select * from range_list_parted where b is null;
QUERY PLAN
-------------------------------------
QUERY PLAN
------------------------------------
Append
-> Seq Scan on range_list_parted
Filter: (b IS NULL)
-> Seq Scan on part_1_10
Filter: (b IS NULL)
-> Seq Scan on part_10_20
Filter: (b IS NULL)
-> Seq Scan on part_21_30
Filter: (b IS NULL)
-> Seq Scan on part_40_inf
Filter: (b IS NULL)
-> Seq Scan on part_40_inf_null
Filter: (b IS NULL)
(1 3 rows)
(3 rows)
explain (costs off) select * from range_list_parted where a is not null and a < 67;
QUERY PLAN
------------------------------------------------
Append
-> Seq Scan on range_list_parted
Filter: ((a IS NOT NULL) AND (a < 67))
-> Seq Scan on part_1_10
Filter: ((a IS NOT NULL) AND (a < 67))
-> Seq Scan on part_10_20
Filter: ((a IS NOT NULL) AND (a < 67))
-> Seq Scan on part_21_30
Filter: ((a IS NOT NULL) AND (a < 67))
-> Seq Scan on part_40_inf
Filter: ((a IS NOT NULL) AND (a < 67))
-> Seq Scan on part_1_10_ab
Filter: ((a IS NOT NULL) AND (a < 67))
-> Seq Scan on part_1_10_cd
@ -1831,23 +1812,19 @@ explain (costs off) select * from range_list_parted where a is not null and a <
Filter: ((a IS NOT NULL) AND (a < 67))
-> Seq Scan on part_40_inf_null
Filter: ((a IS NOT NULL) AND (a < 67))
(2 9 rows)
(1 9 rows)
explain (costs off) select * from range_list_parted where a >= 30;
QUERY PLAN
-------------------------------------
QUERY PLAN
------------------------------------
Append
-> Seq Scan on range_list_parted
Filter: (a >= 30)
-> Seq Scan on part_40_inf
Filter: (a >= 30)
-> Seq Scan on part_40_inf_ab
Filter: (a >= 30)
-> Seq Scan on part_40_inf_cd
Filter: (a >= 30)
-> Seq Scan on part_40_inf_null
Filter: (a >= 30)
(11 rows)
(7 rows)
drop table list_parted;
drop table range_list_parted;
Robert Haas
8 years ago