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--
-- ARRAYS
--
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CREATE TABLE arrtest (
a int2[],
b int4[][][],
c name[],
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d text[][],
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e float8[],
f char(5)[],
g varchar(5)[]
);
--
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-- only the 'e' array is 0-based, the others are 1-based.
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--
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INSERT INTO arrtest (a[1:5], b[1:1][1:2][1:2], c, d, f, g)
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VALUES ('{1,2,3,4,5}', '{{{0,0},{1,2}}}', '{}', '{}', '{}', '{}');
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UPDATE arrtest SET e[0] = '1.1';
UPDATE arrtest SET e[1] = '2.2';
INSERT INTO arrtest (f)
VALUES ('{"too long"}');
ERROR: value too long for type character(5)
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INSERT INTO arrtest (a, b[1:2][1:2], c, d, e, f, g)
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VALUES ('{11,12,23}', '{{3,4},{4,5}}', '{"foobar"}',
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'{{"elt1", "elt2"}}', '{"3.4", "6.7"}',
'{"abc","abcde"}', '{"abc","abcde"}');
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INSERT INTO arrtest (a, b[1:2], c, d[1:2])
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VALUES ('{}', '{3,4}', '{foo,bar}', '{bar,foo}');
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SELECT * FROM arrtest;
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a | b | c | d | e | f | g
-------------+-----------------+-----------+---------------+-----------------+-----------------+-------------
{1,2,3,4,5} | {{{0,0},{1,2}}} | {} | {} | [0:1]={1.1,2.2} | {} | {}
{11,12,23} | {{3,4},{4,5}} | {foobar} | {{elt1,elt2}} | {3.4,6.7} | {"abc ",abcde} | {abc,abcde}
{} | {3,4} | {foo,bar} | {bar,foo} | | |
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(3 rows)
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SELECT arrtest.a[1],
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arrtest.b[1][1][1],
arrtest.c[1],
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arrtest.d[1][1],
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arrtest.e[0]
FROM arrtest;
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a | b | c | d | e
----+---+--------+------+-----
1 | 0 | | | 1.1
11 | | foobar | elt1 |
| | foo | |
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(3 rows)
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SELECT a[1], b[1][1][1], c[1], d[1][1], e[0]
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FROM arrtest;
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a | b | c | d | e
----+---+--------+------+-----
1 | 0 | | | 1.1
11 | | foobar | elt1 |
| | foo | |
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(3 rows)
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SELECT a[1:3],
b[1:1][1:2][1:2],
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c[1:2],
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d[1:1][1:2]
FROM arrtest;
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a | b | c | d
------------+-----------------+-----------+---------------
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{1,2,3} | {{{0,0},{1,2}}} | {} | {}
{11,12,23} | {} | {foobar} | {{elt1,elt2}}
{} | {} | {foo,bar} | {}
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(3 rows)
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SELECT array_ndims(a) AS a,array_ndims(b) AS b,array_ndims(c) AS c
FROM arrtest;
a | b | c
---+---+---
1 | 3 |
1 | 2 | 1
| 1 | 1
(3 rows)
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SELECT array_dims(a) AS a,array_dims(b) AS b,array_dims(c) AS c
FROM arrtest;
a | b | c
-------+-----------------+-------
[1:5] | [1:1][1:2][1:2] |
[1:3] | [1:2][1:2] | [1:1]
| [1:2] | [1:2]
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(3 rows)
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-- returns nothing
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SELECT *
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FROM arrtest
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WHERE a[1] < 5 and
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c = '{"foobar"}'::_name;
a | b | c | d | e | f | g
---+---+---+---+---+---+---
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(0 rows)
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UPDATE arrtest
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SET a[1:2] = '{16,25}'
WHERE NOT a = '{}'::_int2;
UPDATE arrtest
SET b[1:1][1:1][1:2] = '{113, 117}',
b[1:1][1:2][2:2] = '{142, 147}'
WHERE array_dims(b) = '[1:1][1:2][1:2]';
UPDATE arrtest
SET c[2:2] = '{"new_word"}'
WHERE array_dims(c) is not null;
SELECT a,b,c FROM arrtest;
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a | b | c
---------------+-----------------------+-------------------
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{16,25,3,4,5} | {{{113,142},{1,147}}} | {}
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{} | {3,4} | {foo,new_word}
{16,25,23} | {{3,4},{4,5}} | {foobar,new_word}
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(3 rows)
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SELECT a[1:3],
b[1:1][1:2][1:2],
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c[1:2],
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d[1:1][2:2]
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FROM arrtest;
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a | b | c | d
------------+-----------------------+-------------------+----------
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{16,25,3} | {{{113,142},{1,147}}} | {} | {}
{} | {} | {foo,new_word} | {}
{16,25,23} | {} | {foobar,new_word} | {{elt2}}
(3 rows)
INSERT INTO arrtest(a) VALUES('{1,null,3}');
SELECT a FROM arrtest;
a
---------------
{16,25,3,4,5}
{}
{16,25,23}
{1,NULL,3}
(4 rows)
UPDATE arrtest SET a[4] = NULL WHERE a[2] IS NULL;
SELECT a FROM arrtest WHERE a[2] IS NULL;
a
-----------------
[4:4]={NULL}
{1,NULL,3,NULL}
(2 rows)
DELETE FROM arrtest WHERE a[2] IS NULL AND b IS NULL;
SELECT a,b,c FROM arrtest;
a | b | c
---------------+-----------------------+-------------------
{16,25,3,4,5} | {{{113,142},{1,147}}} | {}
{16,25,23} | {{3,4},{4,5}} | {foobar,new_word}
[4:4]={NULL} | {3,4} | {foo,new_word}
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(3 rows)
2006-09-29 23:22:21 +02:00
--
-- test array extension
--
CREATE TEMP TABLE arrtest1 (i int[], t text[]);
insert into arrtest1 values(array[1,2,null,4], array['one','two',null,'four']);
select * from arrtest1;
i | t
--------------+---------------------
{1,2,NULL,4} | {one,two,NULL,four}
(1 row)
update arrtest1 set i[2] = 22, t[2] = 'twenty-two';
select * from arrtest1;
i | t
---------------+----------------------------
{1,22,NULL,4} | {one,twenty-two,NULL,four}
(1 row)
update arrtest1 set i[5] = 5, t[5] = 'five';
select * from arrtest1;
i | t
-----------------+---------------------------------
{1,22,NULL,4,5} | {one,twenty-two,NULL,four,five}
(1 row)
update arrtest1 set i[8] = 8, t[8] = 'eight';
select * from arrtest1;
i | t
-----------------------------+-------------------------------------------------
{1,22,NULL,4,5,NULL,NULL,8} | {one,twenty-two,NULL,four,five,NULL,NULL,eight}
(1 row)
update arrtest1 set i[0] = 0, t[0] = 'zero';
select * from arrtest1;
i | t
-------------------------------------+------------------------------------------------------------
[0:8]={0,1,22,NULL,4,5,NULL,NULL,8} | [0:8]={zero,one,twenty-two,NULL,four,five,NULL,NULL,eight}
(1 row)
update arrtest1 set i[-3] = -3, t[-3] = 'minus-three';
select * from arrtest1;
i | t
---------------------------------------------------+-----------------------------------------------------------------------------------
[-3:8]={-3,NULL,NULL,0,1,22,NULL,4,5,NULL,NULL,8} | [-3:8]={minus-three,NULL,NULL,zero,one,twenty-two,NULL,four,five,NULL,NULL,eight}
(1 row)
update arrtest1 set i[0:2] = array[10,11,12], t[0:2] = array['ten','eleven','twelve'];
select * from arrtest1;
i | t
-----------------------------------------------------+---------------------------------------------------------------------------------
[-3:8]={-3,NULL,NULL,10,11,12,NULL,4,5,NULL,NULL,8} | [-3:8]={minus-three,NULL,NULL,ten,eleven,twelve,NULL,four,five,NULL,NULL,eight}
(1 row)
update arrtest1 set i[8:10] = array[18,null,20], t[8:10] = array['p18',null,'p20'];
select * from arrtest1;
i | t
---------------------------------------------------------------+-----------------------------------------------------------------------------------------
[-3:10]={-3,NULL,NULL,10,11,12,NULL,4,5,NULL,NULL,18,NULL,20} | [-3:10]={minus-three,NULL,NULL,ten,eleven,twelve,NULL,four,five,NULL,NULL,p18,NULL,p20}
(1 row)
update arrtest1 set i[11:12] = array[null,22], t[11:12] = array[null,'p22'];
select * from arrtest1;
i | t
-----------------------------------------------------------------------+--------------------------------------------------------------------------------------------------
[-3:12]={-3,NULL,NULL,10,11,12,NULL,4,5,NULL,NULL,18,NULL,20,NULL,22} | [-3:12]={minus-three,NULL,NULL,ten,eleven,twelve,NULL,four,five,NULL,NULL,p18,NULL,p20,NULL,p22}
(1 row)
update arrtest1 set i[15:16] = array[null,26], t[15:16] = array[null,'p26'];
select * from arrtest1;
i | t
-----------------------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------
[-3:16]={-3,NULL,NULL,10,11,12,NULL,4,5,NULL,NULL,18,NULL,20,NULL,22,NULL,NULL,NULL,26} | [-3:16]={minus-three,NULL,NULL,ten,eleven,twelve,NULL,four,five,NULL,NULL,p18,NULL,p20,NULL,p22,NULL,NULL,NULL,p26}
(1 row)
update arrtest1 set i[-5:-3] = array[-15,-14,-13], t[-5:-3] = array['m15','m14','m13'];
select * from arrtest1;
i | t
--------------------------------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------
[-5:16]={-15,-14,-13,NULL,NULL,10,11,12,NULL,4,5,NULL,NULL,18,NULL,20,NULL,22,NULL,NULL,NULL,26} | [-5:16]={m15,m14,m13,NULL,NULL,ten,eleven,twelve,NULL,four,five,NULL,NULL,p18,NULL,p20,NULL,p22,NULL,NULL,NULL,p26}
(1 row)
update arrtest1 set i[-7:-6] = array[-17,null], t[-7:-6] = array['m17',null];
select * from arrtest1;
i | t
-----------------------------------------------------------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------
[-7:16]={-17,NULL,-15,-14,-13,NULL,NULL,10,11,12,NULL,4,5,NULL,NULL,18,NULL,20,NULL,22,NULL,NULL,NULL,26} | [-7:16]={m17,NULL,m15,m14,m13,NULL,NULL,ten,eleven,twelve,NULL,four,five,NULL,NULL,p18,NULL,p20,NULL,p22,NULL,NULL,NULL,p26}
(1 row)
update arrtest1 set i[-12:-10] = array[-22,null,-20], t[-12:-10] = array['m22',null,'m20'];
select * from arrtest1;
i | t
-----------------------------------------------------------------------------------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------
[-12:16]={-22,NULL,-20,NULL,NULL,-17,NULL,-15,-14,-13,NULL,NULL,10,11,12,NULL,4,5,NULL,NULL,18,NULL,20,NULL,22,NULL,NULL,NULL,26} | [-12:16]={m22,NULL,m20,NULL,NULL,m17,NULL,m15,m14,m13,NULL,NULL,ten,eleven,twelve,NULL,four,five,NULL,NULL,p18,NULL,p20,NULL,p22,NULL,NULL,NULL,p26}
(1 row)
delete from arrtest1;
insert into arrtest1 values(array[1,2,null,4], array['one','two',null,'four']);
select * from arrtest1;
i | t
--------------+---------------------
{1,2,NULL,4} | {one,two,NULL,four}
(1 row)
update arrtest1 set i[0:5] = array[0,1,2,null,4,5], t[0:5] = array['z','p1','p2',null,'p4','p5'];
select * from arrtest1;
i | t
------------------------+----------------------------
[0:5]={0,1,2,NULL,4,5} | [0:5]={z,p1,p2,NULL,p4,p5}
(1 row)
2003-04-09 01:20:04 +02:00
--
-- array expressions and operators
--
-- table creation and INSERTs
CREATE TEMP TABLE arrtest2 (i integer ARRAY[4], f float8[], n numeric[], t text[], d timestamp[]);
INSERT INTO arrtest2 VALUES(
ARRAY[[[113,142],[1,147]]],
ARRAY[1.1,1.2,1.3]::float8[],
ARRAY[1.1,1.2,1.3],
ARRAY[[['aaa','aab'],['aba','abb'],['aca','acb']],[['baa','bab'],['bba','bbb'],['bca','bcb']]],
ARRAY['19620326','19931223','19970117']::timestamp[]
);
-- some more test data
CREATE TEMP TABLE arrtest_f (f0 int, f1 text, f2 float8);
insert into arrtest_f values(1,'cat1',1.21);
insert into arrtest_f values(2,'cat1',1.24);
insert into arrtest_f values(3,'cat1',1.18);
insert into arrtest_f values(4,'cat1',1.26);
insert into arrtest_f values(5,'cat1',1.15);
insert into arrtest_f values(6,'cat2',1.15);
insert into arrtest_f values(7,'cat2',1.26);
insert into arrtest_f values(8,'cat2',1.32);
insert into arrtest_f values(9,'cat2',1.30);
CREATE TEMP TABLE arrtest_i (f0 int, f1 text, f2 int);
insert into arrtest_i values(1,'cat1',21);
insert into arrtest_i values(2,'cat1',24);
insert into arrtest_i values(3,'cat1',18);
insert into arrtest_i values(4,'cat1',26);
insert into arrtest_i values(5,'cat1',15);
insert into arrtest_i values(6,'cat2',15);
insert into arrtest_i values(7,'cat2',26);
insert into arrtest_i values(8,'cat2',32);
insert into arrtest_i values(9,'cat2',30);
-- expressions
SELECT t.f[1][3][1] AS "131", t.f[2][2][1] AS "221" FROM (
SELECT ARRAY[[[111,112],[121,122],[131,132]],[[211,212],[221,122],[231,232]]] AS f
) AS t;
131 | 221
-----+-----
131 | 221
(1 row)
SELECT ARRAY[[[[[['hello'],['world']]]]]];
array
---------------------------
{{{{{{hello},{world}}}}}}
(1 row)
SELECT ARRAY[ARRAY['hello'],ARRAY['world']];
array
-------------------
{{hello},{world}}
(1 row)
SELECT ARRAY(select f2 from arrtest_f order by f2) AS "ARRAY";
ARRAY
-----------------------------------------------
{1.15,1.15,1.18,1.21,1.24,1.26,1.26,1.3,1.32}
(1 row)
2005-11-17 23:14:56 +01:00
-- with nulls
SELECT '{1,null,3}'::int[];
int4
------------
{1,NULL,3}
(1 row)
SELECT ARRAY[1,NULL,3];
array
------------
{1,NULL,3}
(1 row)
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-- functions
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SELECT array_append(array[42], 6) AS "{42,6}";
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{42,6}
--------
{42,6}
(1 row)
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SELECT array_prepend(6, array[42]) AS "{6,42}";
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{6,42}
--------
{6,42}
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(1 row)
2003-08-18 01:43:27 +02:00
SELECT array_cat(ARRAY[1,2], ARRAY[3,4]) AS "{1,2,3,4}";
{1,2,3,4}
-----------
{1,2,3,4}
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(1 row)
SELECT array_cat(ARRAY[1,2], ARRAY[[3,4],[5,6]]) AS "{{1,2},{3,4},{5,6}}";
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{{1,2},{3,4},{5,6}}
---------------------
{{1,2},{3,4},{5,6}}
2003-04-09 01:20:04 +02:00
(1 row)
SELECT array_cat(ARRAY[[3,4],[5,6]], ARRAY[1,2]) AS "{{3,4},{5,6},{1,2}}";
{{3,4},{5,6},{1,2}}
---------------------
{{3,4},{5,6},{1,2}}
(1 row)
-- operators
SELECT a FROM arrtest WHERE b = ARRAY[[[113,142],[1,147]]];
a
---------------
{16,25,3,4,5}
(1 row)
SELECT NOT ARRAY[1.1,1.2,1.3] = ARRAY[1.1,1.2,1.3] AS "FALSE";
FALSE
-------
f
(1 row)
SELECT ARRAY[1,2] || 3 AS "{1,2,3}";
{1,2,3}
---------
{1,2,3}
(1 row)
SELECT 0 || ARRAY[1,2] AS "{0,1,2}";
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{0,1,2}
---------
{0,1,2}
2003-04-09 01:20:04 +02:00
(1 row)
2003-08-18 01:43:27 +02:00
SELECT ARRAY[1,2] || ARRAY[3,4] AS "{1,2,3,4}";
{1,2,3,4}
-----------
{1,2,3,4}
2003-04-09 01:20:04 +02:00
(1 row)
SELECT ARRAY[[['hello','world']]] || ARRAY[[['happy','birthday']]] AS "ARRAY";
2003-08-18 01:43:27 +02:00
ARRAY
--------------------------------------
{{{hello,world}},{{happy,birthday}}}
2003-04-09 01:20:04 +02:00
(1 row)
SELECT ARRAY[[1,2],[3,4]] || ARRAY[5,6] AS "{{1,2},{3,4},{5,6}}";
{{1,2},{3,4},{5,6}}
---------------------
{{1,2},{3,4},{5,6}}
(1 row)
2003-08-18 01:43:27 +02:00
SELECT ARRAY[0,0] || ARRAY[1,1] || ARRAY[2,2] AS "{0,0,1,1,2,2}";
{0,0,1,1,2,2}
---------------
{0,0,1,1,2,2}
2003-04-09 01:20:04 +02:00
(1 row)
SELECT 0 || ARRAY[1,2] || 3 AS "{0,1,2,3}";
2005-11-19 02:50:08 +01:00
{0,1,2,3}
-----------
{0,1,2,3}
2003-04-09 01:20:04 +02:00
(1 row)
2012-03-04 02:20:19 +01:00
ANALYZE array_op_test;
2006-09-10 02:29:35 +02:00
SELECT * FROM array_op_test WHERE i @> '{32}' ORDER BY seqno;
2006-05-02 13:28:56 +02:00
seqno | i | t
-------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------
6 | {39,35,5,94,17,92,60,32} | {AAAAAAAAAAAAAAA35875,AAAAAAAAAAAAAAAA23657}
74 | {32} | {AAAAAAAAAAAAAAAA1729,AAAAAAAAAAAAA22860,AAAAAA99807,AAAAA17383,AAAAAAAAAAAAAAA67062,AAAAAAAAAAA15165,AAAAAAAAAAA50956}
77 | {97,15,32,17,55,59,18,37,50,39} | {AAAAAAAAAAAA67946,AAAAAA54032,AAAAAAAA81587,55847,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAAAAA43052,AAAAAA75463,AAAA49534,AAAAAAAA44066}
89 | {40,32,17,6,30,88} | {AA44673,AAAAAAAAAAA6119,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAAAAAA47955,AAAAAAAAAAAAAAAA33598,AAAAAAAAAAA33576,AA44673}
98 | {38,34,32,89} | {AAAAAAAAAAAAAAAAAA71621,AAAA8857,AAAAAAAAAAAAAAAAAAA65037,AAAAAAAAAAAAAAAA31334,AAAAAAAAAA48845}
100 | {85,32,57,39,49,84,32,3,30} | {AAAAAAA80240,AAAAAAAAAAAAAAAA1729,AAAAA60038,AAAAAAAAAAA92631,AAAAAAAA9523}
(6 rows)
SELECT * FROM array_op_test WHERE i && '{32}' ORDER BY seqno;
seqno | i | t
-------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------
6 | {39,35,5,94,17,92,60,32} | {AAAAAAAAAAAAAAA35875,AAAAAAAAAAAAAAAA23657}
74 | {32} | {AAAAAAAAAAAAAAAA1729,AAAAAAAAAAAAA22860,AAAAAA99807,AAAAA17383,AAAAAAAAAAAAAAA67062,AAAAAAAAAAA15165,AAAAAAAAAAA50956}
77 | {97,15,32,17,55,59,18,37,50,39} | {AAAAAAAAAAAA67946,AAAAAA54032,AAAAAAAA81587,55847,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAAAAA43052,AAAAAA75463,AAAA49534,AAAAAAAA44066}
89 | {40,32,17,6,30,88} | {AA44673,AAAAAAAAAAA6119,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAAAAAA47955,AAAAAAAAAAAAAAAA33598,AAAAAAAAAAA33576,AA44673}
98 | {38,34,32,89} | {AAAAAAAAAAAAAAAAAA71621,AAAA8857,AAAAAAAAAAAAAAAAAAA65037,AAAAAAAAAAAAAAAA31334,AAAAAAAAAA48845}
100 | {85,32,57,39,49,84,32,3,30} | {AAAAAAA80240,AAAAAAAAAAAAAAAA1729,AAAAA60038,AAAAAAAAAAA92631,AAAAAAAA9523}
(6 rows)
2006-09-10 02:29:35 +02:00
SELECT * FROM array_op_test WHERE i @> '{17}' ORDER BY seqno;
2006-05-02 13:28:56 +02:00
seqno | i | t
-------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------
6 | {39,35,5,94,17,92,60,32} | {AAAAAAAAAAAAAAA35875,AAAAAAAAAAAAAAAA23657}
12 | {17,99,18,52,91,72,0,43,96,23} | {AAAAA33250,AAAAAAAAAAAAAAAAAAA85420,AAAAAAAAAAA33576}
15 | {17,14,16,63,67} | {AA6416,AAAAAAAAAA646,AAAAA95309}
19 | {52,82,17,74,23,46,69,51,75} | {AAAAAAAAAAAAA73084,AAAAA75968,AAAAAAAAAAAAAAAA14047,AAAAAAA80240,AAAAAAAAAAAAAAAAAAA1205,A68938}
53 | {38,17} | {AAAAAAAAAAA21658}
65 | {61,5,76,59,17} | {AAAAAA99807,AAAAA64741,AAAAAAAAAAA53908,AA21643,AAAAAAAAA10012}
77 | {97,15,32,17,55,59,18,37,50,39} | {AAAAAAAAAAAA67946,AAAAAA54032,AAAAAAAA81587,55847,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAAAAA43052,AAAAAA75463,AAAA49534,AAAAAAAA44066}
89 | {40,32,17,6,30,88} | {AA44673,AAAAAAAAAAA6119,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAAAAAA47955,AAAAAAAAAAAAAAAA33598,AAAAAAAAAAA33576,AA44673}
(8 rows)
SELECT * FROM array_op_test WHERE i && '{17}' ORDER BY seqno;
seqno | i | t
-------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------
6 | {39,35,5,94,17,92,60,32} | {AAAAAAAAAAAAAAA35875,AAAAAAAAAAAAAAAA23657}
12 | {17,99,18,52,91,72,0,43,96,23} | {AAAAA33250,AAAAAAAAAAAAAAAAAAA85420,AAAAAAAAAAA33576}
15 | {17,14,16,63,67} | {AA6416,AAAAAAAAAA646,AAAAA95309}
19 | {52,82,17,74,23,46,69,51,75} | {AAAAAAAAAAAAA73084,AAAAA75968,AAAAAAAAAAAAAAAA14047,AAAAAAA80240,AAAAAAAAAAAAAAAAAAA1205,A68938}
53 | {38,17} | {AAAAAAAAAAA21658}
65 | {61,5,76,59,17} | {AAAAAA99807,AAAAA64741,AAAAAAAAAAA53908,AA21643,AAAAAAAAA10012}
77 | {97,15,32,17,55,59,18,37,50,39} | {AAAAAAAAAAAA67946,AAAAAA54032,AAAAAAAA81587,55847,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAAAAA43052,AAAAAA75463,AAAA49534,AAAAAAAA44066}
89 | {40,32,17,6,30,88} | {AA44673,AAAAAAAAAAA6119,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAAAAAA47955,AAAAAAAAAAAAAAAA33598,AAAAAAAAAAA33576,AA44673}
(8 rows)
2006-09-10 02:29:35 +02:00
SELECT * FROM array_op_test WHERE i @> '{32,17}' ORDER BY seqno;
2006-05-02 13:28:56 +02:00
seqno | i | t
-------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------
6 | {39,35,5,94,17,92,60,32} | {AAAAAAAAAAAAAAA35875,AAAAAAAAAAAAAAAA23657}
77 | {97,15,32,17,55,59,18,37,50,39} | {AAAAAAAAAAAA67946,AAAAAA54032,AAAAAAAA81587,55847,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAAAAA43052,AAAAAA75463,AAAA49534,AAAAAAAA44066}
89 | {40,32,17,6,30,88} | {AA44673,AAAAAAAAAAA6119,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAAAAAA47955,AAAAAAAAAAAAAAAA33598,AAAAAAAAAAA33576,AA44673}
(3 rows)
SELECT * FROM array_op_test WHERE i && '{32,17}' ORDER BY seqno;
seqno | i | t
-------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------
6 | {39,35,5,94,17,92,60,32} | {AAAAAAAAAAAAAAA35875,AAAAAAAAAAAAAAAA23657}
12 | {17,99,18,52,91,72,0,43,96,23} | {AAAAA33250,AAAAAAAAAAAAAAAAAAA85420,AAAAAAAAAAA33576}
15 | {17,14,16,63,67} | {AA6416,AAAAAAAAAA646,AAAAA95309}
19 | {52,82,17,74,23,46,69,51,75} | {AAAAAAAAAAAAA73084,AAAAA75968,AAAAAAAAAAAAAAAA14047,AAAAAAA80240,AAAAAAAAAAAAAAAAAAA1205,A68938}
53 | {38,17} | {AAAAAAAAAAA21658}
65 | {61,5,76,59,17} | {AAAAAA99807,AAAAA64741,AAAAAAAAAAA53908,AA21643,AAAAAAAAA10012}
74 | {32} | {AAAAAAAAAAAAAAAA1729,AAAAAAAAAAAAA22860,AAAAAA99807,AAAAA17383,AAAAAAAAAAAAAAA67062,AAAAAAAAAAA15165,AAAAAAAAAAA50956}
77 | {97,15,32,17,55,59,18,37,50,39} | {AAAAAAAAAAAA67946,AAAAAA54032,AAAAAAAA81587,55847,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAAAAA43052,AAAAAA75463,AAAA49534,AAAAAAAA44066}
89 | {40,32,17,6,30,88} | {AA44673,AAAAAAAAAAA6119,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAAAAAA47955,AAAAAAAAAAAAAAAA33598,AAAAAAAAAAA33576,AA44673}
98 | {38,34,32,89} | {AAAAAAAAAAAAAAAAAA71621,AAAA8857,AAAAAAAAAAAAAAAAAAA65037,AAAAAAAAAAAAAAAA31334,AAAAAAAAAA48845}
100 | {85,32,57,39,49,84,32,3,30} | {AAAAAAA80240,AAAAAAAAAAAAAAAA1729,AAAAA60038,AAAAAAAAAAA92631,AAAAAAAA9523}
(11 rows)
2006-09-10 02:29:35 +02:00
SELECT * FROM array_op_test WHERE i <@ '{38,34,32,89}' ORDER BY seqno;
2006-05-02 13:28:56 +02:00
seqno | i | t
-------+---------------+----------------------------------------------------------------------------------------------------------------------------
40 | {34} | {AAAAAAAAAAAAAA10611,AAAAAAAAAAAAAAAAAAA1205,AAAAAAAAAAA50956,AAAAAAAAAAAAAAAA31334,AAAAA70466,AAAAAAAA81587,AAAAAAA74623}
74 | {32} | {AAAAAAAAAAAAAAAA1729,AAAAAAAAAAAAA22860,AAAAAA99807,AAAAA17383,AAAAAAAAAAAAAAA67062,AAAAAAAAAAA15165,AAAAAAAAAAA50956}
98 | {38,34,32,89} | {AAAAAAAAAAAAAAAAAA71621,AAAA8857,AAAAAAAAAAAAAAAAAAA65037,AAAAAAAAAAAAAAAA31334,AAAAAAAAAA48845}
Fix GIN to support null keys, empty and null items, and full index scans.
Per my recent proposal(s). Null key datums can now be returned by
extractValue and extractQuery functions, and will be stored in the index.
Also, placeholder entries are made for indexable items that are NULL or
contain no keys according to extractValue. This means that the index is
now always complete, having at least one entry for every indexed heap TID,
and so we can get rid of the prohibition on full-index scans. A full-index
scan is implemented much the same way as partial-match scans were already:
we build a bitmap representing all the TIDs found in the index, and then
drive the results off that.
Also, introduce a concept of a "search mode" that can be requested by
extractQuery when the operator requires matching to empty items (this is
just as cheap as matching to a single key) or requires a full index scan
(which is not so cheap, but it sure beats failing or giving wrong answers).
The behavior remains backward compatible for opclasses that don't return
any null keys or request a non-default search mode.
Using these features, we can now make the GIN index opclass for anyarray
behave in a way that matches the actual anyarray operators for &&, <@, @>,
and = ... which it failed to do before in assorted corner cases.
This commit fixes the core GIN code and ginarrayprocs.c, updates the
documentation, and adds some simple regression test cases for the new
behaviors using the array operators. The tsearch and contrib GIN opclass
support functions still need to be looked over and probably fixed.
Another thing I intend to fix separately is that this is pretty inefficient
for cases where more than one scan condition needs a full-index search:
we'll run duplicate GinScanEntrys, each one of which builds a large bitmap.
There is some existing logic to merge duplicate GinScanEntrys but it needs
refactoring to make it work for entries belonging to different scan keys.
Note that most of gin.h has been split out into a new file gin_private.h,
so that gin.h doesn't export anything that's not supposed to be used by GIN
opclasses or the rest of the backend. I did quite a bit of other code
beautification work as well, mostly fixing comments and choosing more
appropriate names for things.
2011-01-08 01:16:24 +01:00
101 | {} | {}
(4 rows)
SELECT * FROM array_op_test WHERE i = '{}' ORDER BY seqno;
seqno | i | t
-------+----+----
101 | {} | {}
(1 row)
SELECT * FROM array_op_test WHERE i @> '{}' ORDER BY seqno;
seqno | i | t
-------+---------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1 | {92,75,71,52,64,83} | {AAAAAAAA44066,AAAAAA1059,AAAAAAAAAAA176,AAAAAAA48038}
2 | {3,6} | {AAAAAA98232,AAAAAAAA79710,AAAAAAAAAAAAAAAAA69675,AAAAAAAAAAAAAAAA55798,AAAAAAAAA12793}
3 | {37,64,95,43,3,41,13,30,11,43} | {AAAAAAAAAA48845,AAAAA75968,AAAAA95309,AAA54451,AAAAAAAAAA22292,AAAAAAA99836,A96617,AA17009,AAAAAAAAAAAAAA95246}
4 | {71,39,99,55,33,75,45} | {AAAAAAAAA53663,AAAAAAAAAAAAAAA67062,AAAAAAAAAA64777,AAA99043,AAAAAAAAAAAAAAAAAAA91804,39557}
5 | {50,42,77,50,4} | {AAAAAAAAAAAAAAAAA26540,AAAAAAA79710,AAAAAAAAAAAAAAAAAAA1205,AAAAAAAAAAA176,AAAAA95309,AAAAAAAAAAA46154,AAAAAA66777,AAAAAAAAA27249,AAAAAAAAAA64777,AAAAAAAAAAAAAAAAAAA70104}
6 | {39,35,5,94,17,92,60,32} | {AAAAAAAAAAAAAAA35875,AAAAAAAAAAAAAAAA23657}
7 | {12,51,88,64,8} | {AAAAAAAAAAAAAAAAAA12591,AAAAAAAAAAAAAAAAA50407,AAAAAAAAAAAA67946}
8 | {60,84} | {AAAAAAA81898,AAAAAA1059,AAAAAAAAAAAA81511,AAAAA961,AAAAAAAAAAAAAAAA31334,AAAAA64741,AA6416,AAAAAAAAAAAAAAAAAA32918,AAAAAAAAAAAAAAAAA50407}
9 | {56,52,35,27,80,44,81,22} | {AAAAAAAAAAAAAAA73034,AAAAAAAAAAAAA7929,AAAAAAA66161,AA88409,39557,A27153,AAAAAAAA9523,AAAAAAAAAAA99000}
10 | {71,5,45} | {AAAAAAAAAAA21658,AAAAAAAAAAAA21089,AAA54451,AAAAAAAAAAAAAAAAAA54141,AAAAAAAAAAAAAA28620,AAAAAAAAAAA21658,AAAAAAAAAAA74076,AAAAAAAAA27249}
11 | {41,86,74,48,22,74,47,50} | {AAAAAAAA9523,AAAAAAAAAAAA37562,AAAAAAAAAAAAAAAA14047,AAAAAAAAAAA46154,AAAA41702,AAAAAAAAAAAAAAAAA764,AAAAA62737,39557}
12 | {17,99,18,52,91,72,0,43,96,23} | {AAAAA33250,AAAAAAAAAAAAAAAAAAA85420,AAAAAAAAAAA33576}
13 | {3,52,34,23} | {AAAAAA98232,AAAA49534,AAAAAAAAAAA21658}
14 | {78,57,19} | {AAAA8857,AAAAAAAAAAAAAAA73034,AAAAAAAA81587,AAAAAAAAAAAAAAA68526,AAAAA75968,AAAAAAAAAAAAAA65909,AAAAAAAAA10012,AAAAAAAAAAAAAA65909}
15 | {17,14,16,63,67} | {AA6416,AAAAAAAAAA646,AAAAA95309}
16 | {14,63,85,11} | {AAAAAA66777}
17 | {7,10,81,85} | {AAAAAA43678,AAAAAAA12144,AAAAAAAAAAA50956,AAAAAAAAAAAAAAAAAAA15356}
18 | {1} | {AAAAAAAAAAA33576,AAAAA95309,64261,AAA59323,AAAAAAAAAAAAAA95246,55847,AAAAAAAAAAAA67946,AAAAAAAAAAAAAAAAAA64374}
19 | {52,82,17,74,23,46,69,51,75} | {AAAAAAAAAAAAA73084,AAAAA75968,AAAAAAAAAAAAAAAA14047,AAAAAAA80240,AAAAAAAAAAAAAAAAAAA1205,A68938}
20 | {72,89,70,51,54,37,8,49,79} | {AAAAAA58494}
21 | {2,8,65,10,5,79,43} | {AAAAAAAAAAAAAAAAA88852,AAAAAAAAAAAAAAAAAAA91804,AAAAA64669,AAAAAAAAAAAAAAAA1443,AAAAAAAAAAAAAAAA23657,AAAAA12179,AAAAAAAAAAAAAAAAA88852,AAAAAAAAAAAAAAAA31334,AAAAAAAAAAAAAAAA41303,AAAAAAAAAAAAAAAAAAA85420}
22 | {11,6,56,62,53,30} | {AAAAAAAA72908}
23 | {40,90,5,38,72,40,30,10,43,55} | {A6053,AAAAAAAAAAA6119,AA44673,AAAAAAAAAAAAAAAAA764,AA17009,AAAAA17383,AAAAA70514,AAAAA33250,AAAAA95309,AAAAAAAAAAAA37562}
24 | {94,61,99,35,48} | {AAAAAAAAAAA50956,AAAAAAAAAAA15165,AAAA85070,AAAAAAAAAAAAAAA36627,AAAAA961,AAAAAAAAAA55219}
25 | {31,1,10,11,27,79,38} | {AAAAAAAAAAAAAAAAAA59334,45449}
26 | {71,10,9,69,75} | {47735,AAAAAAA21462,AAAAAAAAAAAAAAAAA6897,AAAAAAAAAAAAAAAAAAA91804,AAAAAAAAA72121,AAAAAAAAAAAAAAAAAAA1205,AAAAA41597,AAAA8857,AAAAAAAAAAAAAAAAAAA15356,AA17009}
27 | {94} | {AA6416,A6053,AAAAAAA21462,AAAAAAA57334,AAAAAAAAAAAAAAAAAA12591,AA88409,AAAAAAAAAAAAA70254}
28 | {14,33,6,34,14} | {AAAAAAAAAAAAAAA13198,AAAAAAAA69452,AAAAAAAAAAA82945,AAAAAAA12144,AAAAAAAAA72121,AAAAAAAAAA18601}
29 | {39,21} | {AAAAAAAAAAAAAAAAA6897,AAAAAAAAAAAAAAAAAAA38885,AAAA85070,AAAAAAAAAAAAAAAAAAA70104,AAAAA66674,AAAAAAAAAAAAA62007,AAAAAAAA69452,AAAAAAA1242,AAAAAAAAAAAAAAAA1729,AAAA35194}
30 | {26,81,47,91,34} | {AAAAAAAAAAAAAAAAAAA70104,AAAAAAA80240}
31 | {80,24,18,21,54} | {AAAAAAAAAAAAAAA13198,AAAAAAAAAAAAAAAAAAA70415,A27153,AAAAAAAAA53663,AAAAAAAAAAAAAAAAA50407,A68938}
32 | {58,79,82,80,67,75,98,10,41} | {AAAAAAAAAAAAAAAAAA61286,AAA54451,AAAAAAAAAAAAAAAAAAA87527,A96617,51533}
33 | {74,73} | {A85417,AAAAAAA56483,AAAAA17383,AAAAAAAAAAAAA62159,AAAAAAAAAAAA52814,AAAAAAAAAAAAA85723,AAAAAAAAAAAAAAAAAA55796}
34 | {70,45} | {AAAAAAAAAAAAAAAAAA71621,AAAAAAAAAAAAAA28620,AAAAAAAAAA55219,AAAAAAAA23648,AAAAAAAAAA22292,AAAAAAA1242}
35 | {23,40} | {AAAAAAAAAAAA52814,AAAA48949,AAAAAAAAA34727,AAAA8857,AAAAAAAAAAAAAAAAAAA62179,AAAAAAAAAAAAAAA68526,AAAAAAA99836,AAAAAAAA50094,AAAA91194,AAAAAAAAAAAAA73084}
36 | {79,82,14,52,30,5,79} | {AAAAAAAAA53663,AAAAAAAAAAAAAAAA55798,AAAAAAAAAAAAAAAAAAA89194,AA88409,AAAAAAAAAAAAAAA81326,AAAAAAAAAAAAAAAAA63050,AAAAAAAAAAAAAAAA33598}
37 | {53,11,81,39,3,78,58,64,74} | {AAAAAAAAAAAAAAAAAAA17075,AAAAAAA66161,AAAAAAAA23648,AAAAAAAAAAAAAA10611}
38 | {59,5,4,95,28} | {AAAAAAAAAAA82945,A96617,47735,AAAAA12179,AAAAA64669,AAAAAA99807,AA74433,AAAAAAAAAAAAAAAAA59387}
39 | {82,43,99,16,74} | {AAAAAAAAAAAAAAA67062,AAAAAAA57334,AAAAAAAAAAAAAA65909,A27153,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAAAAAA43052,AAAAAAAAAA64777,AAAAAAAAAAAA81511,AAAAAAAAAAAAAA65909,AAAAAAAAAAAAAA28620}
40 | {34} | {AAAAAAAAAAAAAA10611,AAAAAAAAAAAAAAAAAAA1205,AAAAAAAAAAA50956,AAAAAAAAAAAAAAAA31334,AAAAA70466,AAAAAAAA81587,AAAAAAA74623}
41 | {19,26,63,12,93,73,27,94} | {AAAAAAA79710,AAAAAAAAAA55219,AAAA41702,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAAAAAAA71621,AAAAAAAAAAAAAAAAA63050,AAAAAAA99836,AAAAAAAAAAAAAA8666}
42 | {15,76,82,75,8,91} | {AAAAAAAAAAA176,AAAAAA38063,45449,AAAAAA54032,AAAAAAA81898,AA6416,AAAAAAAAAAAAAAAAAAA62179,45449,AAAAA60038,AAAAAAAA81587}
43 | {39,87,91,97,79,28} | {AAAAAAAAAAA74076,A96617,AAAAAAAAAAAAAAAAAAA89194,AAAAAAAAAAAAAAAAAA55796,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAA67946}
44 | {40,58,68,29,54} | {AAAAAAA81898,AAAAAA66777,AAAAAA98232}
45 | {99,45} | {AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}
46 | {53,24} | {AAAAAAAAAAA53908,AAAAAA54032,AAAAA17383,AAAA48949,AAAAAAAAAA18601,AAAAA64669,45449,AAAAAAAAAAA98051,AAAAAAAAAAAAAAAAAA71621}
47 | {98,23,64,12,75,61} | {AAA59323,AAAAA95309,AAAAAAAAAAAAAAAA31334,AAAAAAAAA27249,AAAAA17383,AAAAAAAAAAAA37562,AAAAAA1059,A84822,55847,AAAAA70466}
48 | {76,14} | {AAAAAAAAAAAAA59671,AAAAAAAAAAAAAAAAAAA91804,AAAAAA66777,AAAAAAAAAAAAAAAAAAA89194,AAAAAAAAAAAAAAA36627,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAA73084,AAAAAAA79710,AAAAAAAAAAAAAAA40402,AAAAAAAAAAAAAAAAAAA65037}
49 | {56,5,54,37,49} | {AA21643,AAAAAAAAAAA92631,AAAAAAAA81587}
50 | {20,12,37,64,93} | {AAAAAAAAAA5483,AAAAAAAAAAAAAAAAAAA1205,AA6416,AAAAAAAAAAAAAAAAA63050,AAAAAAAAAAAAAAAAAA47955}
51 | {47} | {AAAAAAAAAAAAAA96505,AAAAAAAAAAAAAAAAAA36842,AAAAA95309,AAAAAAAA81587,AA6416,AAAA91194,AAAAAA58494,AAAAAA1059,AAAAAAAA69452}
52 | {89,0} | {AAAAAAAAAAAAAAAAAA47955,AAAAAAA48038,AAAAAAAAAAAAAAAAA43052,AAAAAAAAAAAAA73084,AAAAA70466,AAAAAAAAAAAAAAAAA764,AAAAAAAAAAA46154,AA66862}
53 | {38,17} | {AAAAAAAAAAA21658}
54 | {70,47} | {AAAAAAAAAAAAAAAAAA54141,AAAAA40681,AAAAAAA48038,AAAAAAAAAAAAAAAA29150,AAAAA41597,AAAAAAAAAAAAAAAAAA59334,AA15322}
55 | {47,79,47,64,72,25,71,24,93} | {AAAAAAAAAAAAAAAAAA55796,AAAAA62737}
56 | {33,7,60,54,93,90,77,85,39} | {AAAAAAAAAAAAAAAAAA32918,AA42406}
57 | {23,45,10,42,36,21,9,96} | {AAAAAAAAAAAAAAAAAAA70415}
58 | {92} | {AAAAAAAAAAAAAAAA98414,AAAAAAAA23648,AAAAAAAAAAAAAAAAAA55796,AA25381,AAAAAAAAAAA6119}
59 | {9,69,46,77} | {39557,AAAAAAA89932,AAAAAAAAAAAAAAAAA43052,AAAAAAAAAAAAAAAAA26540,AAA20874,AA6416,AAAAAAAAAAAAAAAAAA47955}
60 | {62,2,59,38,89} | {AAAAAAA89932,AAAAAAAAAAAAAAAAAAA15356,AA99927,AA17009,AAAAAAAAAAAAAAA35875}
61 | {72,2,44,95,54,54,13} | {AAAAAAAAAAAAAAAAAAA91804}
62 | {83,72,29,73} | {AAAAAAAAAAAAA15097,AAAA8857,AAAAAAAAAAAA35809,AAAAAAAAAAAA52814,AAAAAAAAAAAAAAAAAAA38885,AAAAAAAAAAAAAAAAAA24183,AAAAAA43678,A96617}
63 | {11,4,61,87} | {AAAAAAAAA27249,AAAAAAAAAAAAAAAAAA32918,AAAAAAAAAAAAAAA13198,AAA20874,39557,51533,AAAAAAAAAAA53908,AAAAAAAAAAAAAA96505,AAAAAAAA78938}
64 | {26,19,34,24,81,78} | {A96617,AAAAAAAAAAAAAAAAAAA70104,A68938,AAAAAAAAAAA53908,AAAAAAAAAAAAAAA453,AA17009,AAAAAAA80240}
65 | {61,5,76,59,17} | {AAAAAA99807,AAAAA64741,AAAAAAAAAAA53908,AA21643,AAAAAAAAA10012}
66 | {31,23,70,52,4,33,48,25} | {AAAAAAAAAAAAAAAAA69675,AAAAAAAA50094,AAAAAAAAAAA92631,AAAA35194,39557,AAAAAAA99836}
67 | {31,94,7,10} | {AAAAAA38063,A96617,AAAA35194,AAAAAAAAAAAA67946}
68 | {90,43,38} | {AA75092,AAAAAAAAAAAAAAAAA69675,AAAAAAAAAAA92631,AAAAAAAAA10012,AAAAAAAAAAAAA7929,AA21643}
69 | {67,35,99,85,72,86,44} | {AAAAAAAAAAAAAAAAAAA1205,AAAAAAAA50094,AAAAAAAAAAAAAAAA1729,AAAAAAAAAAAAAAAAAA47955}
70 | {56,70,83} | {AAAA41702,AAAAAAAAAAA82945,AA21643,AAAAAAAAAAA99000,A27153,AA25381,AAAAAAAAAAAAAA96505,AAAAAAA1242}
71 | {74,26} | {AAAAAAAAAAA50956,AA74433,AAAAAAA21462,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAAAA36627,AAAAAAAAAAAAA70254,AAAAAAAAAA43419,39557}
72 | {22,1,16,78,20,91,83} | {47735,AAAAAAA56483,AAAAAAAAAAAAA93788,AA42406,AAAAAAAAAAAAA73084,AAAAAAAA72908,AAAAAAAAAAAAAAAAAA61286,AAAAA66674,AAAAAAAAAAAAAAAAA50407}
73 | {88,25,96,78,65,15,29,19} | {AAA54451,AAAAAAAAA27249,AAAAAAA9228,AAAAAAAAAAAAAAA67062,AAAAAAAAAAAAAAAAAAA70415,AAAAA17383,AAAAAAAAAAAAAAAA33598}
74 | {32} | {AAAAAAAAAAAAAAAA1729,AAAAAAAAAAAAA22860,AAAAAA99807,AAAAA17383,AAAAAAAAAAAAAAA67062,AAAAAAAAAAA15165,AAAAAAAAAAA50956}
75 | {12,96,83,24,71,89,55} | {AAAA48949,AAAAAAAA29716,AAAAAAAAAAAAAAAAAAA1205,AAAAAAAAAAAA67946,AAAAAAAAAAAAAAAA29150,AAA28075,AAAAAAAAAAAAAAAAA43052}
76 | {92,55,10,7} | {AAAAAAAAAAAAAAA67062}
77 | {97,15,32,17,55,59,18,37,50,39} | {AAAAAAAAAAAA67946,AAAAAA54032,AAAAAAAA81587,55847,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAAAAA43052,AAAAAA75463,AAAA49534,AAAAAAAA44066}
78 | {55,89,44,84,34} | {AAAAAAAAAAA6119,AAAAAAAAAAAAAA8666,AA99927,AA42406,AAAAAAA81898,AAAAAAA9228,AAAAAAAAAAA92631,AA21643,AAAAAAAAAAAAAA28620}
79 | {45} | {AAAAAAAAAA646,AAAAAAAAAAAAAAAAAAA70415,AAAAAA43678,AAAAAAAA72908}
80 | {74,89,44,80,0} | {AAAA35194,AAAAAAAA79710,AAA20874,AAAAAAAAAAAAAAAAAAA70104,AAAAAAAAAAAAA73084,AAAAAAA57334,AAAAAAA9228,AAAAAAAAAAAAA62007}
81 | {63,77,54,48,61,53,97} | {AAAAAAAAAAAAAAA81326,AAAAAAAAAA22292,AA25381,AAAAAAAAAAA74076,AAAAAAA81898,AAAAAAAAA72121}
82 | {34,60,4,79,78,16,86,89,42,50} | {AAAAA40681,AAAAAAAAAAAAAAAAAA12591,AAAAAAA80240,AAAAAAAAAAAAAAAA55798,AAAAAAAAAAAAAAAAAAA70104}
83 | {14,10} | {AAAAAAAAAA22292,AAAAAAAAAAAAA70254,AAAAAAAAAAA6119}
84 | {11,83,35,13,96,94} | {AAAAA95309,AAAAAAAAAAAAAAAAAA32918,AAAAAAAAAAAAAAAAAA24183}
85 | {39,60} | {AAAAAAAAAAAAAAAA55798,AAAAAAAAAA22292,AAAAAAA66161,AAAAAAA21462,AAAAAAAAAAAAAAAAAA12591,55847,AAAAAA98232,AAAAAAAAAAA46154}
86 | {33,81,72,74,45,36,82} | {AAAAAAAA81587,AAAAAAAAAAAAAA96505,45449,AAAA80176}
87 | {57,27,50,12,97,68} | {AAAAAAAAAAAAAAAAA26540,AAAAAAAAA10012,AAAAAAAAAAAA35809,AAAAAAAAAAAAAAAA29150,AAAAAAAAAAA82945,AAAAAA66777,31228,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAA96505}
88 | {41,90,77,24,6,24} | {AAAA35194,AAAA35194,AAAAAAA80240,AAAAAAAAAAA46154,AAAAAA58494,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAAAAAAA59334,AAAAAAAAAAAAAAAAAAA91804,AA74433}
89 | {40,32,17,6,30,88} | {AA44673,AAAAAAAAAAA6119,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAAAAAA47955,AAAAAAAAAAAAAAAA33598,AAAAAAAAAAA33576,AA44673}
90 | {88,75} | {AAAAA60038,AAAAAAAA23648,AAAAAAAAAAA99000,AAAA41702,AAAAAAAAAAAAA22860,AAAAAAAAAAAAAAA68526}
91 | {78} | {AAAAAAAAAAAAA62007,AAA99043}
92 | {85,63,49,45} | {AAAAAAA89932,AAAAAAAAAAAAA22860,AAAAAAAAAAAAAAAAAAA1205,AAAAAAAAAAAA21089}
93 | {11} | {AAAAAAAAAAA176,AAAAAAAAAAAAAA8666,AAAAAAAAAAAAAAA453,AAAAAAAAAAAAA85723,A68938,AAAAAAAAAAAAA9821,AAAAAAA48038,AAAAAAAAAAAAAAAAA59387,AA99927,AAAAA17383}
94 | {98,9,85,62,88,91,60,61,38,86} | {AAAAAAAA81587,AAAAA17383,AAAAAAAA81587}
95 | {47,77} | {AAAAAAAAAAAAAAAAA764,AAAAAAAAAAA74076,AAAAAAAAAA18107,AAAAA40681,AAAAAAAAAAAAAAA35875,AAAAA60038,AAAAAAA56483}
96 | {23,97,43} | {AAAAAAAAAA646,A87088}
97 | {54,2,86,65} | {47735,AAAAAAA99836,AAAAAAAAAAAAAAAAA6897,AAAAAAAAAAAAAAAA29150,AAAAAAA80240,AAAAAAAAAAAAAAAA98414,AAAAAAA56483,AAAAAAAAAAAAAAAA29150,AAAAAAA39692,AA21643}
98 | {38,34,32,89} | {AAAAAAAAAAAAAAAAAA71621,AAAA8857,AAAAAAAAAAAAAAAAAAA65037,AAAAAAAAAAAAAAAA31334,AAAAAAAAAA48845}
99 | {37,86} | {AAAAAAAAAAAAAAAAAA32918,AAAAA70514,AAAAAAAAA10012,AAAAAAAAAAAAAAAAA59387,AAAAAAAAAA64777,AAAAAAAAAAAAAAAAAAA15356}
100 | {85,32,57,39,49,84,32,3,30} | {AAAAAAA80240,AAAAAAAAAAAAAAAA1729,AAAAA60038,AAAAAAAAAAA92631,AAAAAAAA9523}
101 | {} | {}
102 | {NULL} | {NULL}
(102 rows)
SELECT * FROM array_op_test WHERE i && '{}' ORDER BY seqno;
seqno | i | t
-------+---+---
(0 rows)
SELECT * FROM array_op_test WHERE i <@ '{}' ORDER BY seqno;
seqno | i | t
-------+----+----
101 | {} | {}
(1 row)
SELECT * FROM array_op_test WHERE i = '{NULL}' ORDER BY seqno;
seqno | i | t
-------+--------+--------
102 | {NULL} | {NULL}
(1 row)
SELECT * FROM array_op_test WHERE i @> '{NULL}' ORDER BY seqno;
seqno | i | t
-------+---+---
(0 rows)
SELECT * FROM array_op_test WHERE i && '{NULL}' ORDER BY seqno;
seqno | i | t
-------+---+---
(0 rows)
SELECT * FROM array_op_test WHERE i <@ '{NULL}' ORDER BY seqno;
seqno | i | t
-------+----+----
101 | {} | {}
(1 row)
2006-05-02 13:28:56 +02:00
2006-09-10 02:29:35 +02:00
SELECT * FROM array_op_test WHERE t @> '{AAAAAAAA72908}' ORDER BY seqno;
2006-05-02 13:28:56 +02:00
seqno | i | t
-------+-----------------------+--------------------------------------------------------------------------------------------------------------------------------------------
22 | {11,6,56,62,53,30} | {AAAAAAAA72908}
45 | {99,45} | {AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}
72 | {22,1,16,78,20,91,83} | {47735,AAAAAAA56483,AAAAAAAAAAAAA93788,AA42406,AAAAAAAAAAAAA73084,AAAAAAAA72908,AAAAAAAAAAAAAAAAAA61286,AAAAA66674,AAAAAAAAAAAAAAAAA50407}
79 | {45} | {AAAAAAAAAA646,AAAAAAAAAAAAAAAAAAA70415,AAAAAA43678,AAAAAAAA72908}
(4 rows)
SELECT * FROM array_op_test WHERE t && '{AAAAAAAA72908}' ORDER BY seqno;
seqno | i | t
-------+-----------------------+--------------------------------------------------------------------------------------------------------------------------------------------
22 | {11,6,56,62,53,30} | {AAAAAAAA72908}
45 | {99,45} | {AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}
72 | {22,1,16,78,20,91,83} | {47735,AAAAAAA56483,AAAAAAAAAAAAA93788,AA42406,AAAAAAAAAAAAA73084,AAAAAAAA72908,AAAAAAAAAAAAAAAAAA61286,AAAAA66674,AAAAAAAAAAAAAAAAA50407}
79 | {45} | {AAAAAAAAAA646,AAAAAAAAAAAAAAAAAAA70415,AAAAAA43678,AAAAAAAA72908}
(4 rows)
2006-09-10 02:29:35 +02:00
SELECT * FROM array_op_test WHERE t @> '{AAAAAAAAAA646}' ORDER BY seqno;
2006-05-02 13:28:56 +02:00
seqno | i | t
-------+------------------+--------------------------------------------------------------------
15 | {17,14,16,63,67} | {AA6416,AAAAAAAAAA646,AAAAA95309}
79 | {45} | {AAAAAAAAAA646,AAAAAAAAAAAAAAAAAAA70415,AAAAAA43678,AAAAAAAA72908}
96 | {23,97,43} | {AAAAAAAAAA646,A87088}
(3 rows)
SELECT * FROM array_op_test WHERE t && '{AAAAAAAAAA646}' ORDER BY seqno;
seqno | i | t
-------+------------------+--------------------------------------------------------------------
15 | {17,14,16,63,67} | {AA6416,AAAAAAAAAA646,AAAAA95309}
79 | {45} | {AAAAAAAAAA646,AAAAAAAAAAAAAAAAAAA70415,AAAAAA43678,AAAAAAAA72908}
96 | {23,97,43} | {AAAAAAAAAA646,A87088}
(3 rows)
2006-09-10 02:29:35 +02:00
SELECT * FROM array_op_test WHERE t @> '{AAAAAAAA72908,AAAAAAAAAA646}' ORDER BY seqno;
2006-05-02 13:28:56 +02:00
seqno | i | t
-------+------+--------------------------------------------------------------------
79 | {45} | {AAAAAAAAAA646,AAAAAAAAAAAAAAAAAAA70415,AAAAAA43678,AAAAAAAA72908}
(1 row)
SELECT * FROM array_op_test WHERE t && '{AAAAAAAA72908,AAAAAAAAAA646}' ORDER BY seqno;
seqno | i | t
-------+-----------------------+--------------------------------------------------------------------------------------------------------------------------------------------
15 | {17,14,16,63,67} | {AA6416,AAAAAAAAAA646,AAAAA95309}
22 | {11,6,56,62,53,30} | {AAAAAAAA72908}
45 | {99,45} | {AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}
72 | {22,1,16,78,20,91,83} | {47735,AAAAAAA56483,AAAAAAAAAAAAA93788,AA42406,AAAAAAAAAAAAA73084,AAAAAAAA72908,AAAAAAAAAAAAAAAAAA61286,AAAAA66674,AAAAAAAAAAAAAAAAA50407}
79 | {45} | {AAAAAAAAAA646,AAAAAAAAAAAAAAAAAAA70415,AAAAAA43678,AAAAAAAA72908}
96 | {23,97,43} | {AAAAAAAAAA646,A87088}
(6 rows)
2006-09-10 02:29:35 +02:00
SELECT * FROM array_op_test WHERE t <@ '{AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}' ORDER BY seqno;
2006-05-02 13:28:56 +02:00
seqno | i | t
-------+--------------------+-----------------------------------------------------------------------------------------------------------
22 | {11,6,56,62,53,30} | {AAAAAAAA72908}
45 | {99,45} | {AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}
Fix GIN to support null keys, empty and null items, and full index scans.
Per my recent proposal(s). Null key datums can now be returned by
extractValue and extractQuery functions, and will be stored in the index.
Also, placeholder entries are made for indexable items that are NULL or
contain no keys according to extractValue. This means that the index is
now always complete, having at least one entry for every indexed heap TID,
and so we can get rid of the prohibition on full-index scans. A full-index
scan is implemented much the same way as partial-match scans were already:
we build a bitmap representing all the TIDs found in the index, and then
drive the results off that.
Also, introduce a concept of a "search mode" that can be requested by
extractQuery when the operator requires matching to empty items (this is
just as cheap as matching to a single key) or requires a full index scan
(which is not so cheap, but it sure beats failing or giving wrong answers).
The behavior remains backward compatible for opclasses that don't return
any null keys or request a non-default search mode.
Using these features, we can now make the GIN index opclass for anyarray
behave in a way that matches the actual anyarray operators for &&, <@, @>,
and = ... which it failed to do before in assorted corner cases.
This commit fixes the core GIN code and ginarrayprocs.c, updates the
documentation, and adds some simple regression test cases for the new
behaviors using the array operators. The tsearch and contrib GIN opclass
support functions still need to be looked over and probably fixed.
Another thing I intend to fix separately is that this is pretty inefficient
for cases where more than one scan condition needs a full-index search:
we'll run duplicate GinScanEntrys, each one of which builds a large bitmap.
There is some existing logic to merge duplicate GinScanEntrys but it needs
refactoring to make it work for entries belonging to different scan keys.
Note that most of gin.h has been split out into a new file gin_private.h,
so that gin.h doesn't export anything that's not supposed to be used by GIN
opclasses or the rest of the backend. I did quite a bit of other code
beautification work as well, mostly fixing comments and choosing more
appropriate names for things.
2011-01-08 01:16:24 +01:00
101 | {} | {}
(3 rows)
SELECT * FROM array_op_test WHERE t = '{}' ORDER BY seqno;
seqno | i | t
-------+----+----
101 | {} | {}
(1 row)
SELECT * FROM array_op_test WHERE t @> '{}' ORDER BY seqno;
seqno | i | t
-------+---------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1 | {92,75,71,52,64,83} | {AAAAAAAA44066,AAAAAA1059,AAAAAAAAAAA176,AAAAAAA48038}
2 | {3,6} | {AAAAAA98232,AAAAAAAA79710,AAAAAAAAAAAAAAAAA69675,AAAAAAAAAAAAAAAA55798,AAAAAAAAA12793}
3 | {37,64,95,43,3,41,13,30,11,43} | {AAAAAAAAAA48845,AAAAA75968,AAAAA95309,AAA54451,AAAAAAAAAA22292,AAAAAAA99836,A96617,AA17009,AAAAAAAAAAAAAA95246}
4 | {71,39,99,55,33,75,45} | {AAAAAAAAA53663,AAAAAAAAAAAAAAA67062,AAAAAAAAAA64777,AAA99043,AAAAAAAAAAAAAAAAAAA91804,39557}
5 | {50,42,77,50,4} | {AAAAAAAAAAAAAAAAA26540,AAAAAAA79710,AAAAAAAAAAAAAAAAAAA1205,AAAAAAAAAAA176,AAAAA95309,AAAAAAAAAAA46154,AAAAAA66777,AAAAAAAAA27249,AAAAAAAAAA64777,AAAAAAAAAAAAAAAAAAA70104}
6 | {39,35,5,94,17,92,60,32} | {AAAAAAAAAAAAAAA35875,AAAAAAAAAAAAAAAA23657}
7 | {12,51,88,64,8} | {AAAAAAAAAAAAAAAAAA12591,AAAAAAAAAAAAAAAAA50407,AAAAAAAAAAAA67946}
8 | {60,84} | {AAAAAAA81898,AAAAAA1059,AAAAAAAAAAAA81511,AAAAA961,AAAAAAAAAAAAAAAA31334,AAAAA64741,AA6416,AAAAAAAAAAAAAAAAAA32918,AAAAAAAAAAAAAAAAA50407}
9 | {56,52,35,27,80,44,81,22} | {AAAAAAAAAAAAAAA73034,AAAAAAAAAAAAA7929,AAAAAAA66161,AA88409,39557,A27153,AAAAAAAA9523,AAAAAAAAAAA99000}
10 | {71,5,45} | {AAAAAAAAAAA21658,AAAAAAAAAAAA21089,AAA54451,AAAAAAAAAAAAAAAAAA54141,AAAAAAAAAAAAAA28620,AAAAAAAAAAA21658,AAAAAAAAAAA74076,AAAAAAAAA27249}
11 | {41,86,74,48,22,74,47,50} | {AAAAAAAA9523,AAAAAAAAAAAA37562,AAAAAAAAAAAAAAAA14047,AAAAAAAAAAA46154,AAAA41702,AAAAAAAAAAAAAAAAA764,AAAAA62737,39557}
12 | {17,99,18,52,91,72,0,43,96,23} | {AAAAA33250,AAAAAAAAAAAAAAAAAAA85420,AAAAAAAAAAA33576}
13 | {3,52,34,23} | {AAAAAA98232,AAAA49534,AAAAAAAAAAA21658}
14 | {78,57,19} | {AAAA8857,AAAAAAAAAAAAAAA73034,AAAAAAAA81587,AAAAAAAAAAAAAAA68526,AAAAA75968,AAAAAAAAAAAAAA65909,AAAAAAAAA10012,AAAAAAAAAAAAAA65909}
15 | {17,14,16,63,67} | {AA6416,AAAAAAAAAA646,AAAAA95309}
16 | {14,63,85,11} | {AAAAAA66777}
17 | {7,10,81,85} | {AAAAAA43678,AAAAAAA12144,AAAAAAAAAAA50956,AAAAAAAAAAAAAAAAAAA15356}
18 | {1} | {AAAAAAAAAAA33576,AAAAA95309,64261,AAA59323,AAAAAAAAAAAAAA95246,55847,AAAAAAAAAAAA67946,AAAAAAAAAAAAAAAAAA64374}
19 | {52,82,17,74,23,46,69,51,75} | {AAAAAAAAAAAAA73084,AAAAA75968,AAAAAAAAAAAAAAAA14047,AAAAAAA80240,AAAAAAAAAAAAAAAAAAA1205,A68938}
20 | {72,89,70,51,54,37,8,49,79} | {AAAAAA58494}
21 | {2,8,65,10,5,79,43} | {AAAAAAAAAAAAAAAAA88852,AAAAAAAAAAAAAAAAAAA91804,AAAAA64669,AAAAAAAAAAAAAAAA1443,AAAAAAAAAAAAAAAA23657,AAAAA12179,AAAAAAAAAAAAAAAAA88852,AAAAAAAAAAAAAAAA31334,AAAAAAAAAAAAAAAA41303,AAAAAAAAAAAAAAAAAAA85420}
22 | {11,6,56,62,53,30} | {AAAAAAAA72908}
23 | {40,90,5,38,72,40,30,10,43,55} | {A6053,AAAAAAAAAAA6119,AA44673,AAAAAAAAAAAAAAAAA764,AA17009,AAAAA17383,AAAAA70514,AAAAA33250,AAAAA95309,AAAAAAAAAAAA37562}
24 | {94,61,99,35,48} | {AAAAAAAAAAA50956,AAAAAAAAAAA15165,AAAA85070,AAAAAAAAAAAAAAA36627,AAAAA961,AAAAAAAAAA55219}
25 | {31,1,10,11,27,79,38} | {AAAAAAAAAAAAAAAAAA59334,45449}
26 | {71,10,9,69,75} | {47735,AAAAAAA21462,AAAAAAAAAAAAAAAAA6897,AAAAAAAAAAAAAAAAAAA91804,AAAAAAAAA72121,AAAAAAAAAAAAAAAAAAA1205,AAAAA41597,AAAA8857,AAAAAAAAAAAAAAAAAAA15356,AA17009}
27 | {94} | {AA6416,A6053,AAAAAAA21462,AAAAAAA57334,AAAAAAAAAAAAAAAAAA12591,AA88409,AAAAAAAAAAAAA70254}
28 | {14,33,6,34,14} | {AAAAAAAAAAAAAAA13198,AAAAAAAA69452,AAAAAAAAAAA82945,AAAAAAA12144,AAAAAAAAA72121,AAAAAAAAAA18601}
29 | {39,21} | {AAAAAAAAAAAAAAAAA6897,AAAAAAAAAAAAAAAAAAA38885,AAAA85070,AAAAAAAAAAAAAAAAAAA70104,AAAAA66674,AAAAAAAAAAAAA62007,AAAAAAAA69452,AAAAAAA1242,AAAAAAAAAAAAAAAA1729,AAAA35194}
30 | {26,81,47,91,34} | {AAAAAAAAAAAAAAAAAAA70104,AAAAAAA80240}
31 | {80,24,18,21,54} | {AAAAAAAAAAAAAAA13198,AAAAAAAAAAAAAAAAAAA70415,A27153,AAAAAAAAA53663,AAAAAAAAAAAAAAAAA50407,A68938}
32 | {58,79,82,80,67,75,98,10,41} | {AAAAAAAAAAAAAAAAAA61286,AAA54451,AAAAAAAAAAAAAAAAAAA87527,A96617,51533}
33 | {74,73} | {A85417,AAAAAAA56483,AAAAA17383,AAAAAAAAAAAAA62159,AAAAAAAAAAAA52814,AAAAAAAAAAAAA85723,AAAAAAAAAAAAAAAAAA55796}
34 | {70,45} | {AAAAAAAAAAAAAAAAAA71621,AAAAAAAAAAAAAA28620,AAAAAAAAAA55219,AAAAAAAA23648,AAAAAAAAAA22292,AAAAAAA1242}
35 | {23,40} | {AAAAAAAAAAAA52814,AAAA48949,AAAAAAAAA34727,AAAA8857,AAAAAAAAAAAAAAAAAAA62179,AAAAAAAAAAAAAAA68526,AAAAAAA99836,AAAAAAAA50094,AAAA91194,AAAAAAAAAAAAA73084}
36 | {79,82,14,52,30,5,79} | {AAAAAAAAA53663,AAAAAAAAAAAAAAAA55798,AAAAAAAAAAAAAAAAAAA89194,AA88409,AAAAAAAAAAAAAAA81326,AAAAAAAAAAAAAAAAA63050,AAAAAAAAAAAAAAAA33598}
37 | {53,11,81,39,3,78,58,64,74} | {AAAAAAAAAAAAAAAAAAA17075,AAAAAAA66161,AAAAAAAA23648,AAAAAAAAAAAAAA10611}
38 | {59,5,4,95,28} | {AAAAAAAAAAA82945,A96617,47735,AAAAA12179,AAAAA64669,AAAAAA99807,AA74433,AAAAAAAAAAAAAAAAA59387}
39 | {82,43,99,16,74} | {AAAAAAAAAAAAAAA67062,AAAAAAA57334,AAAAAAAAAAAAAA65909,A27153,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAAAAAA43052,AAAAAAAAAA64777,AAAAAAAAAAAA81511,AAAAAAAAAAAAAA65909,AAAAAAAAAAAAAA28620}
40 | {34} | {AAAAAAAAAAAAAA10611,AAAAAAAAAAAAAAAAAAA1205,AAAAAAAAAAA50956,AAAAAAAAAAAAAAAA31334,AAAAA70466,AAAAAAAA81587,AAAAAAA74623}
41 | {19,26,63,12,93,73,27,94} | {AAAAAAA79710,AAAAAAAAAA55219,AAAA41702,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAAAAAAA71621,AAAAAAAAAAAAAAAAA63050,AAAAAAA99836,AAAAAAAAAAAAAA8666}
42 | {15,76,82,75,8,91} | {AAAAAAAAAAA176,AAAAAA38063,45449,AAAAAA54032,AAAAAAA81898,AA6416,AAAAAAAAAAAAAAAAAAA62179,45449,AAAAA60038,AAAAAAAA81587}
43 | {39,87,91,97,79,28} | {AAAAAAAAAAA74076,A96617,AAAAAAAAAAAAAAAAAAA89194,AAAAAAAAAAAAAAAAAA55796,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAA67946}
44 | {40,58,68,29,54} | {AAAAAAA81898,AAAAAA66777,AAAAAA98232}
45 | {99,45} | {AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}
46 | {53,24} | {AAAAAAAAAAA53908,AAAAAA54032,AAAAA17383,AAAA48949,AAAAAAAAAA18601,AAAAA64669,45449,AAAAAAAAAAA98051,AAAAAAAAAAAAAAAAAA71621}
47 | {98,23,64,12,75,61} | {AAA59323,AAAAA95309,AAAAAAAAAAAAAAAA31334,AAAAAAAAA27249,AAAAA17383,AAAAAAAAAAAA37562,AAAAAA1059,A84822,55847,AAAAA70466}
48 | {76,14} | {AAAAAAAAAAAAA59671,AAAAAAAAAAAAAAAAAAA91804,AAAAAA66777,AAAAAAAAAAAAAAAAAAA89194,AAAAAAAAAAAAAAA36627,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAA73084,AAAAAAA79710,AAAAAAAAAAAAAAA40402,AAAAAAAAAAAAAAAAAAA65037}
49 | {56,5,54,37,49} | {AA21643,AAAAAAAAAAA92631,AAAAAAAA81587}
50 | {20,12,37,64,93} | {AAAAAAAAAA5483,AAAAAAAAAAAAAAAAAAA1205,AA6416,AAAAAAAAAAAAAAAAA63050,AAAAAAAAAAAAAAAAAA47955}
51 | {47} | {AAAAAAAAAAAAAA96505,AAAAAAAAAAAAAAAAAA36842,AAAAA95309,AAAAAAAA81587,AA6416,AAAA91194,AAAAAA58494,AAAAAA1059,AAAAAAAA69452}
52 | {89,0} | {AAAAAAAAAAAAAAAAAA47955,AAAAAAA48038,AAAAAAAAAAAAAAAAA43052,AAAAAAAAAAAAA73084,AAAAA70466,AAAAAAAAAAAAAAAAA764,AAAAAAAAAAA46154,AA66862}
53 | {38,17} | {AAAAAAAAAAA21658}
54 | {70,47} | {AAAAAAAAAAAAAAAAAA54141,AAAAA40681,AAAAAAA48038,AAAAAAAAAAAAAAAA29150,AAAAA41597,AAAAAAAAAAAAAAAAAA59334,AA15322}
55 | {47,79,47,64,72,25,71,24,93} | {AAAAAAAAAAAAAAAAAA55796,AAAAA62737}
56 | {33,7,60,54,93,90,77,85,39} | {AAAAAAAAAAAAAAAAAA32918,AA42406}
57 | {23,45,10,42,36,21,9,96} | {AAAAAAAAAAAAAAAAAAA70415}
58 | {92} | {AAAAAAAAAAAAAAAA98414,AAAAAAAA23648,AAAAAAAAAAAAAAAAAA55796,AA25381,AAAAAAAAAAA6119}
59 | {9,69,46,77} | {39557,AAAAAAA89932,AAAAAAAAAAAAAAAAA43052,AAAAAAAAAAAAAAAAA26540,AAA20874,AA6416,AAAAAAAAAAAAAAAAAA47955}
60 | {62,2,59,38,89} | {AAAAAAA89932,AAAAAAAAAAAAAAAAAAA15356,AA99927,AA17009,AAAAAAAAAAAAAAA35875}
61 | {72,2,44,95,54,54,13} | {AAAAAAAAAAAAAAAAAAA91804}
62 | {83,72,29,73} | {AAAAAAAAAAAAA15097,AAAA8857,AAAAAAAAAAAA35809,AAAAAAAAAAAA52814,AAAAAAAAAAAAAAAAAAA38885,AAAAAAAAAAAAAAAAAA24183,AAAAAA43678,A96617}
63 | {11,4,61,87} | {AAAAAAAAA27249,AAAAAAAAAAAAAAAAAA32918,AAAAAAAAAAAAAAA13198,AAA20874,39557,51533,AAAAAAAAAAA53908,AAAAAAAAAAAAAA96505,AAAAAAAA78938}
64 | {26,19,34,24,81,78} | {A96617,AAAAAAAAAAAAAAAAAAA70104,A68938,AAAAAAAAAAA53908,AAAAAAAAAAAAAAA453,AA17009,AAAAAAA80240}
65 | {61,5,76,59,17} | {AAAAAA99807,AAAAA64741,AAAAAAAAAAA53908,AA21643,AAAAAAAAA10012}
66 | {31,23,70,52,4,33,48,25} | {AAAAAAAAAAAAAAAAA69675,AAAAAAAA50094,AAAAAAAAAAA92631,AAAA35194,39557,AAAAAAA99836}
67 | {31,94,7,10} | {AAAAAA38063,A96617,AAAA35194,AAAAAAAAAAAA67946}
68 | {90,43,38} | {AA75092,AAAAAAAAAAAAAAAAA69675,AAAAAAAAAAA92631,AAAAAAAAA10012,AAAAAAAAAAAAA7929,AA21643}
69 | {67,35,99,85,72,86,44} | {AAAAAAAAAAAAAAAAAAA1205,AAAAAAAA50094,AAAAAAAAAAAAAAAA1729,AAAAAAAAAAAAAAAAAA47955}
70 | {56,70,83} | {AAAA41702,AAAAAAAAAAA82945,AA21643,AAAAAAAAAAA99000,A27153,AA25381,AAAAAAAAAAAAAA96505,AAAAAAA1242}
71 | {74,26} | {AAAAAAAAAAA50956,AA74433,AAAAAAA21462,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAAAA36627,AAAAAAAAAAAAA70254,AAAAAAAAAA43419,39557}
72 | {22,1,16,78,20,91,83} | {47735,AAAAAAA56483,AAAAAAAAAAAAA93788,AA42406,AAAAAAAAAAAAA73084,AAAAAAAA72908,AAAAAAAAAAAAAAAAAA61286,AAAAA66674,AAAAAAAAAAAAAAAAA50407}
73 | {88,25,96,78,65,15,29,19} | {AAA54451,AAAAAAAAA27249,AAAAAAA9228,AAAAAAAAAAAAAAA67062,AAAAAAAAAAAAAAAAAAA70415,AAAAA17383,AAAAAAAAAAAAAAAA33598}
74 | {32} | {AAAAAAAAAAAAAAAA1729,AAAAAAAAAAAAA22860,AAAAAA99807,AAAAA17383,AAAAAAAAAAAAAAA67062,AAAAAAAAAAA15165,AAAAAAAAAAA50956}
75 | {12,96,83,24,71,89,55} | {AAAA48949,AAAAAAAA29716,AAAAAAAAAAAAAAAAAAA1205,AAAAAAAAAAAA67946,AAAAAAAAAAAAAAAA29150,AAA28075,AAAAAAAAAAAAAAAAA43052}
76 | {92,55,10,7} | {AAAAAAAAAAAAAAA67062}
77 | {97,15,32,17,55,59,18,37,50,39} | {AAAAAAAAAAAA67946,AAAAAA54032,AAAAAAAA81587,55847,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAAAAA43052,AAAAAA75463,AAAA49534,AAAAAAAA44066}
78 | {55,89,44,84,34} | {AAAAAAAAAAA6119,AAAAAAAAAAAAAA8666,AA99927,AA42406,AAAAAAA81898,AAAAAAA9228,AAAAAAAAAAA92631,AA21643,AAAAAAAAAAAAAA28620}
79 | {45} | {AAAAAAAAAA646,AAAAAAAAAAAAAAAAAAA70415,AAAAAA43678,AAAAAAAA72908}
80 | {74,89,44,80,0} | {AAAA35194,AAAAAAAA79710,AAA20874,AAAAAAAAAAAAAAAAAAA70104,AAAAAAAAAAAAA73084,AAAAAAA57334,AAAAAAA9228,AAAAAAAAAAAAA62007}
81 | {63,77,54,48,61,53,97} | {AAAAAAAAAAAAAAA81326,AAAAAAAAAA22292,AA25381,AAAAAAAAAAA74076,AAAAAAA81898,AAAAAAAAA72121}
82 | {34,60,4,79,78,16,86,89,42,50} | {AAAAA40681,AAAAAAAAAAAAAAAAAA12591,AAAAAAA80240,AAAAAAAAAAAAAAAA55798,AAAAAAAAAAAAAAAAAAA70104}
83 | {14,10} | {AAAAAAAAAA22292,AAAAAAAAAAAAA70254,AAAAAAAAAAA6119}
84 | {11,83,35,13,96,94} | {AAAAA95309,AAAAAAAAAAAAAAAAAA32918,AAAAAAAAAAAAAAAAAA24183}
85 | {39,60} | {AAAAAAAAAAAAAAAA55798,AAAAAAAAAA22292,AAAAAAA66161,AAAAAAA21462,AAAAAAAAAAAAAAAAAA12591,55847,AAAAAA98232,AAAAAAAAAAA46154}
86 | {33,81,72,74,45,36,82} | {AAAAAAAA81587,AAAAAAAAAAAAAA96505,45449,AAAA80176}
87 | {57,27,50,12,97,68} | {AAAAAAAAAAAAAAAAA26540,AAAAAAAAA10012,AAAAAAAAAAAA35809,AAAAAAAAAAAAAAAA29150,AAAAAAAAAAA82945,AAAAAA66777,31228,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAA28620,AAAAAAAAAAAAAA96505}
88 | {41,90,77,24,6,24} | {AAAA35194,AAAA35194,AAAAAAA80240,AAAAAAAAAAA46154,AAAAAA58494,AAAAAAAAAAAAAAAAAAA17075,AAAAAAAAAAAAAAAAAA59334,AAAAAAAAAAAAAAAAAAA91804,AA74433}
89 | {40,32,17,6,30,88} | {AA44673,AAAAAAAAAAA6119,AAAAAAAAAAAAAAAA23657,AAAAAAAAAAAAAAAAAA47955,AAAAAAAAAAAAAAAA33598,AAAAAAAAAAA33576,AA44673}
90 | {88,75} | {AAAAA60038,AAAAAAAA23648,AAAAAAAAAAA99000,AAAA41702,AAAAAAAAAAAAA22860,AAAAAAAAAAAAAAA68526}
91 | {78} | {AAAAAAAAAAAAA62007,AAA99043}
92 | {85,63,49,45} | {AAAAAAA89932,AAAAAAAAAAAAA22860,AAAAAAAAAAAAAAAAAAA1205,AAAAAAAAAAAA21089}
93 | {11} | {AAAAAAAAAAA176,AAAAAAAAAAAAAA8666,AAAAAAAAAAAAAAA453,AAAAAAAAAAAAA85723,A68938,AAAAAAAAAAAAA9821,AAAAAAA48038,AAAAAAAAAAAAAAAAA59387,AA99927,AAAAA17383}
94 | {98,9,85,62,88,91,60,61,38,86} | {AAAAAAAA81587,AAAAA17383,AAAAAAAA81587}
95 | {47,77} | {AAAAAAAAAAAAAAAAA764,AAAAAAAAAAA74076,AAAAAAAAAA18107,AAAAA40681,AAAAAAAAAAAAAAA35875,AAAAA60038,AAAAAAA56483}
96 | {23,97,43} | {AAAAAAAAAA646,A87088}
97 | {54,2,86,65} | {47735,AAAAAAA99836,AAAAAAAAAAAAAAAAA6897,AAAAAAAAAAAAAAAA29150,AAAAAAA80240,AAAAAAAAAAAAAAAA98414,AAAAAAA56483,AAAAAAAAAAAAAAAA29150,AAAAAAA39692,AA21643}
98 | {38,34,32,89} | {AAAAAAAAAAAAAAAAAA71621,AAAA8857,AAAAAAAAAAAAAAAAAAA65037,AAAAAAAAAAAAAAAA31334,AAAAAAAAAA48845}
99 | {37,86} | {AAAAAAAAAAAAAAAAAA32918,AAAAA70514,AAAAAAAAA10012,AAAAAAAAAAAAAAAAA59387,AAAAAAAAAA64777,AAAAAAAAAAAAAAAAAAA15356}
100 | {85,32,57,39,49,84,32,3,30} | {AAAAAAA80240,AAAAAAAAAAAAAAAA1729,AAAAA60038,AAAAAAAAAAA92631,AAAAAAAA9523}
101 | {} | {}
102 | {NULL} | {NULL}
(102 rows)
SELECT * FROM array_op_test WHERE t && '{}' ORDER BY seqno;
seqno | i | t
-------+---+---
(0 rows)
SELECT * FROM array_op_test WHERE t <@ '{}' ORDER BY seqno;
seqno | i | t
-------+----+----
101 | {} | {}
(1 row)
2006-05-02 13:28:56 +02:00
2003-04-09 01:20:04 +02:00
-- array casts
SELECT ARRAY[1,2,3]::text[]::int[]::float8[] AS "{1,2,3}";
{1,2,3}
---------
{1,2,3}
(1 row)
SELECT ARRAY[1,2,3]::text[]::int[]::float8[] is of (float8[]) as "TRUE";
TRUE
------
t
(1 row)
SELECT ARRAY[['a','bc'],['def','hijk']]::text[]::varchar[] AS "{{a,bc},{def,hijk}}";
{{a,bc},{def,hijk}}
---------------------
{{a,bc},{def,hijk}}
(1 row)
SELECT ARRAY[['a','bc'],['def','hijk']]::text[]::varchar[] is of (varchar[]) as "TRUE";
TRUE
------
t
(1 row)
SELECT CAST(ARRAY[[[[[['a','bb','ccc']]]]]] as text[]) as "{{{{{{a,bb,ccc}}}}}}";
{{{{{{a,bb,ccc}}}}}}
----------------------
{{{{{{a,bb,ccc}}}}}}
(1 row)
2003-06-29 02:33:44 +02:00
-- scalar op any/all (array)
select 33 = any ('{1,2,3}');
?column?
----------
f
(1 row)
select 33 = any ('{1,2,33}');
?column?
----------
t
(1 row)
select 33 = all ('{1,2,33}');
?column?
----------
f
(1 row)
select 33 >= all ('{1,2,33}');
?column?
----------
t
(1 row)
-- boundary cases
select null::int >= all ('{1,2,33}');
?column?
----------
(1 row)
select null::int >= all ('{}');
?column?
----------
t
(1 row)
select null::int >= any ('{}');
?column?
----------
f
(1 row)
-- cross-datatype
select 33.4 = any (array[1,2,3]);
?column?
----------
f
(1 row)
select 33.4 > all (array[1,2,3]);
?column?
----------
t
(1 row)
-- errors
select 33 * any ('{1,2,3}');
ERROR: op ANY/ALL (array) requires operator to yield boolean
2006-03-14 23:48:25 +01:00
LINE 1: select 33 * any ('{1,2,3}');
^
2003-06-29 02:33:44 +02:00
select 33 * any (44);
ERROR: op ANY/ALL (array) requires array on right side
2006-03-14 23:48:25 +01:00
LINE 1: select 33 * any (44);
^
2005-11-17 23:14:56 +01:00
-- nulls
select 33 = any (null::int[]);
?column?
----------
(1 row)
select null::int = any ('{1,2,3}');
?column?
----------
(1 row)
select 33 = any ('{1,null,3}');
?column?
----------
(1 row)
select 33 = any ('{1,null,33}');
?column?
----------
t
(1 row)
select 33 = all (null::int[]);
?column?
----------
(1 row)
select null::int = all ('{1,2,3}');
?column?
----------
(1 row)
select 33 = all ('{1,null,3}');
?column?
----------
f
(1 row)
select 33 = all ('{33,null,33}');
?column?
----------
(1 row)
2003-06-27 02:33:26 +02:00
-- test indexes on arrays
create temp table arr_tbl (f1 int[] unique);
insert into arr_tbl values ('{1,2,3}');
insert into arr_tbl values ('{1,2}');
-- failure expected:
insert into arr_tbl values ('{1,2,3}');
2007-06-04 00:16:03 +02:00
ERROR: duplicate key value violates unique constraint "arr_tbl_f1_key"
2009-08-01 21:59:41 +02:00
DETAIL: Key (f1)=({1,2,3}) already exists.
2003-06-27 02:33:26 +02:00
insert into arr_tbl values ('{2,3,4}');
insert into arr_tbl values ('{1,5,3}');
insert into arr_tbl values ('{1,2,10}');
set enable_seqscan to off;
2005-04-22 23:58:32 +02:00
set enable_bitmapscan to off;
2003-06-27 02:33:26 +02:00
select * from arr_tbl where f1 > '{1,2,3}' and f1 <= '{1,5,3}';
f1
----------
{1,2,10}
{1,5,3}
(2 rows)
2008-11-05 13:27:09 +01:00
select * from arr_tbl where f1 >= '{1,2,3}' and f1 < '{1,5,3}';
f1
----------
{1,2,3}
{1,2,10}
(2 rows)
-- note: if above selects don't produce the expected tuple order,
2003-06-27 02:33:26 +02:00
-- then you didn't get an indexscan plan, and something is busted.
2005-04-22 23:58:32 +02:00
reset enable_seqscan;
reset enable_bitmapscan;
2004-04-05 05:07:26 +02:00
-- test [not] (like|ilike) (any|all) (...)
select 'foo' like any (array['%a', '%o']); -- t
?column?
----------
t
(1 row)
select 'foo' like any (array['%a', '%b']); -- f
?column?
----------
f
(1 row)
select 'foo' like all (array['f%', '%o']); -- t
?column?
----------
t
(1 row)
select 'foo' like all (array['f%', '%b']); -- f
?column?
----------
f
(1 row)
select 'foo' not like any (array['%a', '%b']); -- t
?column?
----------
t
(1 row)
select 'foo' not like all (array['%a', '%o']); -- f
?column?
----------
f
(1 row)
select 'foo' ilike any (array['%A', '%O']); -- t
?column?
----------
t
(1 row)
select 'foo' ilike all (array['F%', '%O']); -- t
?column?
----------
t
(1 row)
2004-08-28 21:31:29 +02:00
--
-- General array parser tests
--
-- none of the following should be accepted
select '{{1,{2}},{2,3}}'::text[];
ERROR: malformed array literal: "{{1,{2}},{2,3}}"
2008-09-01 22:42:46 +02:00
LINE 1: select '{{1,{2}},{2,3}}'::text[];
^
2004-08-28 21:31:29 +02:00
select '{{},{}}'::text[];
ERROR: malformed array literal: "{{},{}}"
2008-09-01 22:42:46 +02:00
LINE 1: select '{{},{}}'::text[];
^
2005-06-26 05:04:37 +02:00
select E'{{1,2},\\{2,3}}'::text[];
2004-08-28 21:31:29 +02:00
ERROR: malformed array literal: "{{1,2},\{2,3}}"
2008-09-01 22:42:46 +02:00
LINE 1: select E'{{1,2},\\{2,3}}'::text[];
^
2004-08-28 21:31:29 +02:00
select '{{"1 2" x},{3}}'::text[];
ERROR: malformed array literal: "{{"1 2" x},{3}}"
2008-09-01 22:42:46 +02:00
LINE 1: select '{{"1 2" x},{3}}'::text[];
^
2004-08-28 21:31:29 +02:00
select '{}}'::text[];
ERROR: malformed array literal: "{}}"
2008-09-01 22:42:46 +02:00
LINE 1: select '{}}'::text[];
^
2004-08-28 21:31:29 +02:00
select '{ }}'::text[];
ERROR: malformed array literal: "{ }}"
2008-09-01 22:42:46 +02:00
LINE 1: select '{ }}'::text[];
^
2008-03-20 22:42:48 +01:00
select array[];
ERROR: cannot determine type of empty array
2008-08-29 01:09:48 +02:00
LINE 1: select array[];
^
2008-03-20 22:42:48 +01:00
HINT: Explicitly cast to the desired type, for example ARRAY[]::integer[].
2004-08-28 21:31:29 +02:00
-- none of the above should be accepted
-- all of the following should be accepted
select '{}'::text[];
text
------
{}
(1 row)
select '{{{1,2,3,4},{2,3,4,5}},{{3,4,5,6},{4,5,6,7}}}'::text[];
text
-----------------------------------------------
{{{1,2,3,4},{2,3,4,5}},{{3,4,5,6},{4,5,6,7}}}
(1 row)
select '{0 second ,0 second}'::interval[];
interval
---------------
{"@ 0","@ 0"}
(1 row)
select '{ { "," } , { 3 } }'::text[];
text
-------------
{{","},{3}}
(1 row)
select ' { { " 0 second " , 0 second } }'::text[];
text
-------------------------------
{{" 0 second ","0 second"}}
(1 row)
select '{
0 second,
@ 1 hour @ 42 minutes @ 20 seconds
}'::interval[];
interval
------------------------------------
{"@ 0","@ 1 hour 42 mins 20 secs"}
(1 row)
2008-03-20 22:42:48 +01:00
select array[]::text[];
array
-------
{}
(1 row)
2008-11-05 13:27:09 +01:00
select '[0:1]={1.1,2.2}'::float8[];
float8
-----------------
[0:1]={1.1,2.2}
(1 row)
2004-08-28 21:31:29 +02:00
-- all of the above should be accepted
2005-02-28 04:45:24 +01:00
-- tests for array aggregates
CREATE TEMP TABLE arraggtest ( f1 INT[], f2 TEXT[][], f3 FLOAT[]);
INSERT INTO arraggtest (f1, f2, f3) VALUES
('{1,2,3,4}','{{grey,red},{blue,blue}}','{1.6, 0.0}');
INSERT INTO arraggtest (f1, f2, f3) VALUES
('{1,2,3}','{{grey,red},{grey,blue}}','{1.6}');
SELECT max(f1), min(f1), max(f2), min(f2), max(f3), min(f3) FROM arraggtest;
max | min | max | min | max | min
-----------+---------+--------------------------+--------------------------+---------+-------
{1,2,3,4} | {1,2,3} | {{grey,red},{grey,blue}} | {{grey,red},{blue,blue}} | {1.6,0} | {1.6}
(1 row)
INSERT INTO arraggtest (f1, f2, f3) VALUES
('{3,3,2,4,5,6}','{{white,yellow},{pink,orange}}','{2.1,3.3,1.8,1.7,1.6}');
SELECT max(f1), min(f1), max(f2), min(f2), max(f3), min(f3) FROM arraggtest;
max | min | max | min | max | min
---------------+---------+--------------------------------+--------------------------+-----------------------+-------
{3,3,2,4,5,6} | {1,2,3} | {{white,yellow},{pink,orange}} | {{grey,red},{blue,blue}} | {2.1,3.3,1.8,1.7,1.6} | {1.6}
(1 row)
INSERT INTO arraggtest (f1, f2, f3) VALUES
('{2}','{{black,red},{green,orange}}','{1.6,2.2,2.6,0.4}');
SELECT max(f1), min(f1), max(f2), min(f2), max(f3), min(f3) FROM arraggtest;
max | min | max | min | max | min
---------------+---------+--------------------------------+------------------------------+-----------------------+-------
{3,3,2,4,5,6} | {1,2,3} | {{white,yellow},{pink,orange}} | {{black,red},{green,orange}} | {2.1,3.3,1.8,1.7,1.6} | {1.6}
(1 row)
INSERT INTO arraggtest (f1, f2, f3) VALUES
('{4,2,6,7,8,1}','{{red},{black},{purple},{blue},{blue}}',NULL);
SELECT max(f1), min(f1), max(f2), min(f2), max(f3), min(f3) FROM arraggtest;
max | min | max | min | max | min
---------------+---------+--------------------------------+------------------------------+-----------------------+-------
{4,2,6,7,8,1} | {1,2,3} | {{white,yellow},{pink,orange}} | {{black,red},{green,orange}} | {2.1,3.3,1.8,1.7,1.6} | {1.6}
(1 row)
INSERT INTO arraggtest (f1, f2, f3) VALUES
('{}','{{pink,white,blue,red,grey,orange}}','{2.1,1.87,1.4,2.2}');
SELECT max(f1), min(f1), max(f2), min(f2), max(f3), min(f3) FROM arraggtest;
max | min | max | min | max | min
---------------+-----+--------------------------------+------------------------------+-----------------------+-------
{4,2,6,7,8,1} | {} | {{white,yellow},{pink,orange}} | {{black,red},{green,orange}} | {2.1,3.3,1.8,1.7,1.6} | {1.6}
(1 row)
2007-05-12 02:55:00 +02:00
-- A few simple tests for arrays of composite types
create type comptype as (f1 int, f2 text);
create table comptable (c1 comptype, c2 comptype[]);
-- XXX would like to not have to specify row() construct types here ...
insert into comptable
values (row(1,'foo'), array[row(2,'bar')::comptype, row(3,'baz')::comptype]);
-- check that implicitly named array type _comptype isn't a problem
create type _comptype as enum('fooey');
select * from comptable;
c1 | c2
---------+-----------------------
(1,foo) | {"(2,bar)","(3,baz)"}
(1 row)
select c2[2].f2 from comptable;
f2
-----
baz
(1 row)
drop type _comptype;
drop table comptable;
drop type comptype;
2010-11-23 21:27:50 +01:00
create or replace function unnest1(anyarray)
2008-04-28 16:48:58 +02:00
returns setof anyelement as $$
select $1[s] from generate_subscripts($1,1) g(s);
$$ language sql immutable;
2010-11-23 21:27:50 +01:00
create or replace function unnest2(anyarray)
2008-04-28 16:48:58 +02:00
returns setof anyelement as $$
select $1[s1][s2] from generate_subscripts($1,1) g1(s1),
generate_subscripts($1,2) g2(s2);
$$ language sql immutable;
select * from unnest1(array[1,2,3]);
unnest1
---------
1
2
3
(3 rows)
select * from unnest2(array[[1,2,3],[4,5,6]]);
unnest2
---------
1
2
3
4
5
6
(6 rows)
drop function unnest1(anyarray);
drop function unnest2(anyarray);
2008-07-16 02:48:54 +02:00
select array_fill(null::integer, array[3,3],array[2,2]);
array_fill
-----------------------------------------------------------------
[2:4][2:4]={{NULL,NULL,NULL},{NULL,NULL,NULL},{NULL,NULL,NULL}}
(1 row)
select array_fill(null::integer, array[3,3]);
array_fill
------------------------------------------------------
{{NULL,NULL,NULL},{NULL,NULL,NULL},{NULL,NULL,NULL}}
(1 row)
select array_fill(null::text, array[3,3],array[2,2]);
array_fill
-----------------------------------------------------------------
[2:4][2:4]={{NULL,NULL,NULL},{NULL,NULL,NULL},{NULL,NULL,NULL}}
(1 row)
select array_fill(null::text, array[3,3]);
array_fill
------------------------------------------------------
{{NULL,NULL,NULL},{NULL,NULL,NULL},{NULL,NULL,NULL}}
(1 row)
select array_fill(7, array[3,3],array[2,2]);
array_fill
--------------------------------------
[2:4][2:4]={{7,7,7},{7,7,7},{7,7,7}}
(1 row)
select array_fill(7, array[3,3]);
array_fill
---------------------------
{{7,7,7},{7,7,7},{7,7,7}}
(1 row)
select array_fill('juhu'::text, array[3,3],array[2,2]);
array_fill
-----------------------------------------------------------------
[2:4][2:4]={{juhu,juhu,juhu},{juhu,juhu,juhu},{juhu,juhu,juhu}}
(1 row)
select array_fill('juhu'::text, array[3,3]);
array_fill
------------------------------------------------------
{{juhu,juhu,juhu},{juhu,juhu,juhu},{juhu,juhu,juhu}}
(1 row)
-- raise exception
select array_fill(1, null, array[2,2]);
2011-05-20 23:50:35 +02:00
ERROR: dimension array or low bound array cannot be null
2008-07-16 02:48:54 +02:00
select array_fill(1, array[2,2], null);
2011-05-20 23:50:35 +02:00
ERROR: dimension array or low bound array cannot be null
2008-07-16 02:48:54 +02:00
select array_fill(1, array[3,3], array[1,1,1]);
2009-04-16 16:43:39 +02:00
ERROR: wrong number of array subscripts
2008-07-21 06:47:00 +02:00
DETAIL: Low bound array has different size than dimensions array.
2008-07-16 02:48:54 +02:00
select array_fill(1, array[1,2,null]);
ERROR: dimension values cannot be null
2008-11-05 13:27:09 +01:00
select string_to_array('1|2|3', '|');
string_to_array
-----------------
{1,2,3}
(1 row)
select string_to_array('1|2|3|', '|');
string_to_array
-----------------
{1,2,3,""}
(1 row)
select string_to_array('1||2|3||', '||');
string_to_array
-----------------
{1,2|3,""}
(1 row)
select string_to_array('1|2|3', '');
string_to_array
-----------------
{1|2|3}
(1 row)
select string_to_array('', '|');
string_to_array
-----------------
2010-08-10 23:51:00 +02:00
{}
2008-11-05 13:27:09 +01:00
(1 row)
select string_to_array('1|2|3', NULL);
string_to_array
-----------------
2010-08-10 23:51:00 +02:00
{1,|,2,|,3}
(1 row)
select string_to_array(NULL, '|') IS NULL;
?column?
----------
t
2008-11-05 13:27:09 +01:00
(1 row)
2010-08-10 23:51:00 +02:00
select string_to_array('abc', '');
2008-11-05 13:27:09 +01:00
string_to_array
-----------------
2010-08-10 23:51:00 +02:00
{abc}
(1 row)
select string_to_array('abc', '', 'abc');
string_to_array
-----------------
{NULL}
(1 row)
select string_to_array('abc', ',');
string_to_array
-----------------
{abc}
(1 row)
select string_to_array('abc', ',', 'abc');
string_to_array
-----------------
{NULL}
(1 row)
select string_to_array('1,2,3,4,,6', ',');
string_to_array
-----------------
{1,2,3,4,"",6}
(1 row)
select string_to_array('1,2,3,4,,6', ',', '');
string_to_array
------------------
{1,2,3,4,NULL,6}
(1 row)
select string_to_array('1,2,3,4,*,6', ',', '*');
string_to_array
------------------
{1,2,3,4,NULL,6}
(1 row)
select array_to_string(NULL::int4[], ',') IS NULL;
?column?
----------
t
(1 row)
select array_to_string('{}'::int4[], ',');
array_to_string
-----------------
2008-11-05 13:27:09 +01:00
(1 row)
2010-08-10 23:51:00 +02:00
select array_to_string(array[1,2,3,4,NULL,6], ',');
array_to_string
-----------------
1,2,3,4,6
(1 row)
select array_to_string(array[1,2,3,4,NULL,6], ',', '*');
array_to_string
-----------------
1,2,3,4,*,6
(1 row)
select array_to_string(array[1,2,3,4,NULL,6], NULL);
array_to_string
-----------------
(1 row)
select array_to_string(array[1,2,3,4,NULL,6], ',', NULL);
array_to_string
-----------------
1,2,3,4,6
(1 row)
2008-11-05 13:27:09 +01:00
select array_to_string(string_to_array('1|2|3', '|'), '|');
array_to_string
-----------------
1|2|3
(1 row)
2008-11-12 14:09:28 +01:00
select array_length(array[1,2,3], 1);
array_length
--------------
3
(1 row)
select array_length(array[[1,2,3], [4,5,6]], 0);
array_length
--------------
(1 row)
select array_length(array[[1,2,3], [4,5,6]], 1);
array_length
--------------
2
(1 row)
select array_length(array[[1,2,3], [4,5,6]], 2);
array_length
--------------
3
(1 row)
select array_length(array[[1,2,3], [4,5,6]], 3);
array_length
--------------
(1 row)
2008-11-29 01:39:46 +01:00
select array_agg(unique1) from (select unique1 from tenk1 where unique1 < 15 order by unique1) ss;
2008-11-13 16:59:51 +01:00
array_agg
--------------------------------------
2008-11-29 01:39:46 +01:00
{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14}
2008-11-13 16:59:51 +01:00
(1 row)
2008-11-29 01:39:46 +01:00
select array_agg(ten) from (select ten from tenk1 where unique1 < 15 order by unique1) ss;
2008-11-13 16:59:51 +01:00
array_agg
---------------------------------
2008-11-29 01:39:46 +01:00
{0,1,2,3,4,5,6,7,8,9,0,1,2,3,4}
2008-11-13 16:59:51 +01:00
(1 row)
2008-11-29 01:39:46 +01:00
select array_agg(nullif(ten, 4)) from (select ten from tenk1 where unique1 < 15 order by unique1) ss;
2008-11-13 16:59:51 +01:00
array_agg
---------------------------------------
2008-11-29 01:39:46 +01:00
{0,1,2,3,NULL,5,6,7,8,9,0,1,2,3,NULL}
2008-11-13 16:59:51 +01:00
(1 row)
select array_agg(unique1) from tenk1 where unique1 < -15;
array_agg
-----------
(1 row)
2008-11-14 01:51:47 +01:00
select unnest(array[1,2,3]);
unnest
--------
1
2
3
(3 rows)
select * from unnest(array[1,2,3]);
unnest
--------
1
2
3
(3 rows)
select unnest(array[1,2,3,4.5]::float8[]);
unnest
--------
1
2
3
4.5
(4 rows)
select unnest(array[1,2,3,4.5]::numeric[]);
unnest
--------
1
2
3
4.5
(4 rows)
select unnest(array[1,2,3,null,4,null,null,5,6]);
unnest
--------
1
2
3
4
5
6
(9 rows)
select unnest(array[1,2,3,null,4,null,null,5,6]::text[]);
unnest
--------
1
2
3
4
5
6
(9 rows)
2013-05-12 19:08:12 +02:00
select abs(unnest(array[1,2,null,-3]));
abs
-----
1
2
3
(4 rows)
2012-07-11 19:59:35 +02:00
select array_remove(array[1,2,2,3], 2);
array_remove
--------------
{1,3}
(1 row)
select array_remove(array[1,2,2,3], 5);
array_remove
--------------
{1,2,2,3}
(1 row)
select array_remove(array[1,NULL,NULL,3], NULL);
array_remove
--------------
{1,3}
(1 row)
select array_remove(array['A','CC','D','C','RR'], 'RR');
array_remove
--------------
{A,CC,D,C}
(1 row)
select array_remove('{{1,2,2},{1,4,3}}', 2); -- not allowed
ERROR: removing elements from multidimensional arrays is not supported
select array_replace(array[1,2,5,4],5,3);
array_replace
---------------
{1,2,3,4}
(1 row)
select array_replace(array[1,2,5,4],5,NULL);
array_replace
---------------
{1,2,NULL,4}
(1 row)
select array_replace(array[1,2,NULL,4,NULL],NULL,5);
array_replace
---------------
{1,2,5,4,5}
(1 row)
select array_replace(array['A','B','DD','B'],'B','CC');
array_replace
---------------
{A,CC,DD,CC}
(1 row)
select array_replace(array[1,NULL,3],NULL,NULL);
array_replace
---------------
{1,NULL,3}
(1 row)
select array_replace(array['AB',NULL,'CDE'],NULL,'12');
array_replace
---------------
{AB,12,CDE}
(1 row)
2010-02-18 19:41:47 +01:00
-- Insert/update on a column that is array of composite
create temp table t1 (f1 int8_tbl[]);
insert into t1 (f1[5].q1) values(42);
select * from t1;
f1
-----------------
[5:5]={"(42,)"}
(1 row)
update t1 set f1[5].q2 = 43;
select * from t1;
f1
-------------------
[5:5]={"(42,43)"}
(1 row)
