6efbded6e4
Omitted boundaries represent the upper or lower limit of the corresponding array subscript. This allows simpler specification of many common use-cases. (Revised version of commit 9246af6799819847faa33baf441251003acbb8fe) YUriy Zhuravlev
653 lines
22 KiB
PL/PgSQL
653 lines
22 KiB
PL/PgSQL
--
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-- ARRAYS
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--
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CREATE TABLE arrtest (
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a int2[],
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b int4[][][],
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c name[],
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d text[][],
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e float8[],
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f char(5)[],
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g varchar(5)[]
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);
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--
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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';
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UPDATE arrtest SET e[1] = '2.2';
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INSERT INTO arrtest (f)
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VALUES ('{"too long"}');
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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"}',
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'{"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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SELECT arrtest.a[1],
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arrtest.b[1][1][1],
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arrtest.c[1],
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arrtest.d[1][1],
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arrtest.e[0]
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FROM arrtest;
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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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SELECT a[1:3],
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b[1:1][1:2][1:2],
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c[1:2],
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d[1:1][1:2]
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FROM arrtest;
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SELECT array_ndims(a) AS a,array_ndims(b) AS b,array_ndims(c) AS c
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FROM arrtest;
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SELECT array_dims(a) AS a,array_dims(b) AS b,array_dims(c) AS c
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FROM arrtest;
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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;
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UPDATE arrtest
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SET a[1:2] = '{16,25}'
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WHERE NOT a = '{}'::_int2;
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UPDATE arrtest
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SET b[1:1][1:1][1:2] = '{113, 117}',
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b[1:1][1:2][2:2] = '{142, 147}'
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WHERE array_dims(b) = '[1:1][1:2][1:2]';
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UPDATE arrtest
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SET c[2:2] = '{"new_word"}'
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WHERE array_dims(c) is not null;
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SELECT a,b,c FROM arrtest;
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SELECT a[1:3],
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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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SELECT b[1:1][2][2],
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d[1:1][2]
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FROM arrtest;
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INSERT INTO arrtest(a) VALUES('{1,null,3}');
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SELECT a FROM arrtest;
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UPDATE arrtest SET a[4] = NULL WHERE a[2] IS NULL;
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SELECT a FROM arrtest WHERE a[2] IS NULL;
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DELETE FROM arrtest WHERE a[2] IS NULL AND b IS NULL;
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SELECT a,b,c FROM arrtest;
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-- test mixed slice/scalar subscripting
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select '{{1,2,3},{4,5,6},{7,8,9}}'::int[];
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select ('{{1,2,3},{4,5,6},{7,8,9}}'::int[])[1:2][2];
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select '[0:2][0:2]={{1,2,3},{4,5,6},{7,8,9}}'::int[];
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select ('[0:2][0:2]={{1,2,3},{4,5,6},{7,8,9}}'::int[])[1:2][2];
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-- test slices with empty lower and/or upper index
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CREATE TEMP TABLE arrtest_s (
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a int2[],
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b int2[][]
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);
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INSERT INTO arrtest_s VALUES ('{1,2,3,4,5}', '{{1,2,3}, {4,5,6}, {7,8,9}}');
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INSERT INTO arrtest_s VALUES ('[0:4]={1,2,3,4,5}', '[0:2][0:2]={{1,2,3}, {4,5,6}, {7,8,9}}');
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SELECT * FROM arrtest_s;
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SELECT a[:3], b[:2][:2] FROM arrtest_s;
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SELECT a[2:], b[2:][2:] FROM arrtest_s;
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SELECT a[:], b[:] FROM arrtest_s;
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-- updates
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UPDATE arrtest_s SET a[:3] = '{11, 12, 13}', b[:2][:2] = '{{11,12}, {14,15}}'
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WHERE array_lower(a,1) = 1;
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SELECT * FROM arrtest_s;
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UPDATE arrtest_s SET a[3:] = '{23, 24, 25}', b[2:][2:] = '{{25,26}, {28,29}}';
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SELECT * FROM arrtest_s;
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UPDATE arrtest_s SET a[:] = '{11, 12, 13, 14, 15}';
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SELECT * FROM arrtest_s;
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UPDATE arrtest_s SET a[:] = '{23, 24, 25}'; -- fail, too small
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INSERT INTO arrtest_s VALUES(NULL, NULL);
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UPDATE arrtest_s SET a[:] = '{11, 12, 13, 14, 15}'; -- fail, no good with null
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-- check with fixed-length-array type, such as point
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SELECT f1[0:1] FROM POINT_TBL;
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SELECT f1[0:] FROM POINT_TBL;
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SELECT f1[:1] FROM POINT_TBL;
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SELECT f1[:] FROM POINT_TBL;
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--
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-- test array extension
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--
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CREATE TEMP TABLE arrtest1 (i int[], t text[]);
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insert into arrtest1 values(array[1,2,null,4], array['one','two',null,'four']);
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select * from arrtest1;
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update arrtest1 set i[2] = 22, t[2] = 'twenty-two';
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select * from arrtest1;
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update arrtest1 set i[5] = 5, t[5] = 'five';
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select * from arrtest1;
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update arrtest1 set i[8] = 8, t[8] = 'eight';
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select * from arrtest1;
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update arrtest1 set i[0] = 0, t[0] = 'zero';
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select * from arrtest1;
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update arrtest1 set i[-3] = -3, t[-3] = 'minus-three';
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select * from arrtest1;
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update arrtest1 set i[0:2] = array[10,11,12], t[0:2] = array['ten','eleven','twelve'];
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select * from arrtest1;
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update arrtest1 set i[8:10] = array[18,null,20], t[8:10] = array['p18',null,'p20'];
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select * from arrtest1;
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update arrtest1 set i[11:12] = array[null,22], t[11:12] = array[null,'p22'];
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select * from arrtest1;
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update arrtest1 set i[15:16] = array[null,26], t[15:16] = array[null,'p26'];
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select * from arrtest1;
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update arrtest1 set i[-5:-3] = array[-15,-14,-13], t[-5:-3] = array['m15','m14','m13'];
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select * from arrtest1;
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update arrtest1 set i[-7:-6] = array[-17,null], t[-7:-6] = array['m17',null];
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select * from arrtest1;
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update arrtest1 set i[-12:-10] = array[-22,null,-20], t[-12:-10] = array['m22',null,'m20'];
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select * from arrtest1;
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delete from arrtest1;
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insert into arrtest1 values(array[1,2,null,4], array['one','two',null,'four']);
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select * from arrtest1;
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update arrtest1 set i[0:5] = array[0,1,2,null,4,5], t[0:5] = array['z','p1','p2',null,'p4','p5'];
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select * from arrtest1;
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--
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-- array expressions and operators
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--
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-- table creation and INSERTs
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CREATE TEMP TABLE arrtest2 (i integer ARRAY[4], f float8[], n numeric[], t text[], d timestamp[]);
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INSERT INTO arrtest2 VALUES(
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ARRAY[[[113,142],[1,147]]],
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ARRAY[1.1,1.2,1.3]::float8[],
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ARRAY[1.1,1.2,1.3],
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ARRAY[[['aaa','aab'],['aba','abb'],['aca','acb']],[['baa','bab'],['bba','bbb'],['bca','bcb']]],
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ARRAY['19620326','19931223','19970117']::timestamp[]
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);
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-- some more test data
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CREATE TEMP TABLE arrtest_f (f0 int, f1 text, f2 float8);
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insert into arrtest_f values(1,'cat1',1.21);
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insert into arrtest_f values(2,'cat1',1.24);
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insert into arrtest_f values(3,'cat1',1.18);
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insert into arrtest_f values(4,'cat1',1.26);
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insert into arrtest_f values(5,'cat1',1.15);
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insert into arrtest_f values(6,'cat2',1.15);
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insert into arrtest_f values(7,'cat2',1.26);
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insert into arrtest_f values(8,'cat2',1.32);
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insert into arrtest_f values(9,'cat2',1.30);
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CREATE TEMP TABLE arrtest_i (f0 int, f1 text, f2 int);
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insert into arrtest_i values(1,'cat1',21);
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insert into arrtest_i values(2,'cat1',24);
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insert into arrtest_i values(3,'cat1',18);
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insert into arrtest_i values(4,'cat1',26);
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insert into arrtest_i values(5,'cat1',15);
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insert into arrtest_i values(6,'cat2',15);
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insert into arrtest_i values(7,'cat2',26);
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insert into arrtest_i values(8,'cat2',32);
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insert into arrtest_i values(9,'cat2',30);
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-- expressions
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SELECT t.f[1][3][1] AS "131", t.f[2][2][1] AS "221" FROM (
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SELECT ARRAY[[[111,112],[121,122],[131,132]],[[211,212],[221,122],[231,232]]] AS f
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) AS t;
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SELECT ARRAY[[[[[['hello'],['world']]]]]];
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SELECT ARRAY[ARRAY['hello'],ARRAY['world']];
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SELECT ARRAY(select f2 from arrtest_f order by f2) AS "ARRAY";
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-- with nulls
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SELECT '{1,null,3}'::int[];
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SELECT ARRAY[1,NULL,3];
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-- functions
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SELECT array_append(array[42], 6) AS "{42,6}";
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SELECT array_prepend(6, array[42]) AS "{6,42}";
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SELECT array_cat(ARRAY[1,2], ARRAY[3,4]) AS "{1,2,3,4}";
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SELECT array_cat(ARRAY[1,2], ARRAY[[3,4],[5,6]]) AS "{{1,2},{3,4},{5,6}}";
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SELECT array_cat(ARRAY[[3,4],[5,6]], ARRAY[1,2]) AS "{{3,4},{5,6},{1,2}}";
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SELECT array_position(ARRAY[1,2,3,4,5], 4);
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SELECT array_position(ARRAY[5,3,4,2,1], 4);
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SELECT array_position(ARRAY[[1,2],[3,4]], 3);
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SELECT array_position(ARRAY['sun','mon','tue','wed','thu','fri','sat'], 'mon');
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SELECT array_position(ARRAY['sun','mon','tue','wed','thu','fri','sat'], 'sat');
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SELECT array_position(ARRAY['sun','mon','tue','wed','thu','fri','sat'], NULL);
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SELECT array_position(ARRAY['sun','mon','tue','wed','thu',NULL,'fri','sat'], NULL);
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SELECT array_position(ARRAY['sun','mon','tue','wed','thu',NULL,'fri','sat'], 'sat');
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SELECT array_positions(NULL, 10);
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SELECT array_positions(NULL, NULL::int);
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SELECT array_positions(ARRAY[1,2,3,4,5,6,1,2,3,4,5,6], 4);
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SELECT array_positions(ARRAY[[1,2],[3,4]], 4);
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SELECT array_positions(ARRAY[1,2,3,4,5,6,1,2,3,4,5,6], NULL);
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SELECT array_positions(ARRAY[1,2,3,NULL,5,6,1,2,3,NULL,5,6], NULL);
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SELECT array_length(array_positions(ARRAY(SELECT 'AAAAAAAAAAAAAAAAAAAAAAAAA'::text || i % 10
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FROM generate_series(1,100) g(i)),
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'AAAAAAAAAAAAAAAAAAAAAAAAA5'), 1);
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DO $$
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DECLARE
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o int;
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a int[] := ARRAY[1,2,3,2,3,1,2];
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BEGIN
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o := array_position(a, 2);
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WHILE o IS NOT NULL
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LOOP
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RAISE NOTICE '%', o;
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o := array_position(a, 2, o + 1);
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END LOOP;
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END
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$$ LANGUAGE plpgsql;
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SELECT array_position('[2:4]={1,2,3}'::int[], 1);
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SELECT array_positions('[2:4]={1,2,3}'::int[], 1);
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-- operators
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SELECT a FROM arrtest WHERE b = ARRAY[[[113,142],[1,147]]];
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SELECT NOT ARRAY[1.1,1.2,1.3] = ARRAY[1.1,1.2,1.3] AS "FALSE";
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SELECT ARRAY[1,2] || 3 AS "{1,2,3}";
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SELECT 0 || ARRAY[1,2] AS "{0,1,2}";
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SELECT ARRAY[1,2] || ARRAY[3,4] AS "{1,2,3,4}";
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SELECT ARRAY[[['hello','world']]] || ARRAY[[['happy','birthday']]] AS "ARRAY";
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SELECT ARRAY[[1,2],[3,4]] || ARRAY[5,6] AS "{{1,2},{3,4},{5,6}}";
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SELECT ARRAY[0,0] || ARRAY[1,1] || ARRAY[2,2] AS "{0,0,1,1,2,2}";
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SELECT 0 || ARRAY[1,2] || 3 AS "{0,1,2,3}";
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SELECT * FROM array_op_test WHERE i @> '{32}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i && '{32}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i @> '{17}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i && '{17}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i @> '{32,17}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i && '{32,17}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i <@ '{38,34,32,89}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i = '{}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i @> '{}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i && '{}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i <@ '{}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i = '{NULL}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i @> '{NULL}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i && '{NULL}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE i <@ '{NULL}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t @> '{AAAAAAAA72908}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t && '{AAAAAAAA72908}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t @> '{AAAAAAAAAA646}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t && '{AAAAAAAAAA646}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t @> '{AAAAAAAA72908,AAAAAAAAAA646}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t && '{AAAAAAAA72908,AAAAAAAAAA646}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t <@ '{AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t = '{}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t @> '{}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t && '{}' ORDER BY seqno;
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SELECT * FROM array_op_test WHERE t <@ '{}' ORDER BY seqno;
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-- array casts
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SELECT ARRAY[1,2,3]::text[]::int[]::float8[] AS "{1,2,3}";
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SELECT ARRAY[1,2,3]::text[]::int[]::float8[] is of (float8[]) as "TRUE";
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SELECT ARRAY[['a','bc'],['def','hijk']]::text[]::varchar[] AS "{{a,bc},{def,hijk}}";
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SELECT ARRAY[['a','bc'],['def','hijk']]::text[]::varchar[] is of (varchar[]) as "TRUE";
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SELECT CAST(ARRAY[[[[[['a','bb','ccc']]]]]] as text[]) as "{{{{{{a,bb,ccc}}}}}}";
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-- scalar op any/all (array)
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select 33 = any ('{1,2,3}');
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select 33 = any ('{1,2,33}');
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select 33 = all ('{1,2,33}');
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select 33 >= all ('{1,2,33}');
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-- boundary cases
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select null::int >= all ('{1,2,33}');
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select null::int >= all ('{}');
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select null::int >= any ('{}');
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-- cross-datatype
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select 33.4 = any (array[1,2,3]);
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select 33.4 > all (array[1,2,3]);
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-- errors
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select 33 * any ('{1,2,3}');
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select 33 * any (44);
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-- nulls
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select 33 = any (null::int[]);
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select null::int = any ('{1,2,3}');
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select 33 = any ('{1,null,3}');
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select 33 = any ('{1,null,33}');
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select 33 = all (null::int[]);
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select null::int = all ('{1,2,3}');
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select 33 = all ('{1,null,3}');
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select 33 = all ('{33,null,33}');
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-- test indexes on arrays
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create temp table arr_tbl (f1 int[] unique);
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insert into arr_tbl values ('{1,2,3}');
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insert into arr_tbl values ('{1,2}');
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-- failure expected:
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insert into arr_tbl values ('{1,2,3}');
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insert into arr_tbl values ('{2,3,4}');
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insert into arr_tbl values ('{1,5,3}');
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insert into arr_tbl values ('{1,2,10}');
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set enable_seqscan to off;
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set enable_bitmapscan to off;
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select * from arr_tbl where f1 > '{1,2,3}' and f1 <= '{1,5,3}';
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select * from arr_tbl where f1 >= '{1,2,3}' and f1 < '{1,5,3}';
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-- test ON CONFLICT DO UPDATE with arrays
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create temp table arr_pk_tbl (pk int4 primary key, f1 int[]);
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insert into arr_pk_tbl values (1, '{1,2,3}');
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insert into arr_pk_tbl values (1, '{3,4,5}') on conflict (pk)
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do update set f1[1] = excluded.f1[1], f1[3] = excluded.f1[3]
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returning pk, f1;
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insert into arr_pk_tbl(pk, f1[1:2]) values (1, '{6,7,8}') on conflict (pk)
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do update set f1[1] = excluded.f1[1],
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f1[2] = excluded.f1[2],
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f1[3] = excluded.f1[3]
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returning pk, f1;
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-- note: if above selects don't produce the expected tuple order,
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-- then you didn't get an indexscan plan, and something is busted.
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reset enable_seqscan;
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reset enable_bitmapscan;
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-- test [not] (like|ilike) (any|all) (...)
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select 'foo' like any (array['%a', '%o']); -- t
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select 'foo' like any (array['%a', '%b']); -- f
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select 'foo' like all (array['f%', '%o']); -- t
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select 'foo' like all (array['f%', '%b']); -- f
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select 'foo' not like any (array['%a', '%b']); -- t
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select 'foo' not like all (array['%a', '%o']); -- f
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select 'foo' ilike any (array['%A', '%O']); -- t
|
|
select 'foo' ilike all (array['F%', '%O']); -- t
|
|
|
|
--
|
|
-- General array parser tests
|
|
--
|
|
|
|
-- none of the following should be accepted
|
|
select '{{1,{2}},{2,3}}'::text[];
|
|
select '{{},{}}'::text[];
|
|
select E'{{1,2},\\{2,3}}'::text[];
|
|
select '{{"1 2" x},{3}}'::text[];
|
|
select '{}}'::text[];
|
|
select '{ }}'::text[];
|
|
select array[];
|
|
-- none of the above should be accepted
|
|
|
|
-- all of the following should be accepted
|
|
select '{}'::text[];
|
|
select '{{{1,2,3,4},{2,3,4,5}},{{3,4,5,6},{4,5,6,7}}}'::text[];
|
|
select '{0 second ,0 second}'::interval[];
|
|
select '{ { "," } , { 3 } }'::text[];
|
|
select ' { { " 0 second " , 0 second } }'::text[];
|
|
select '{
|
|
0 second,
|
|
@ 1 hour @ 42 minutes @ 20 seconds
|
|
}'::interval[];
|
|
select array[]::text[];
|
|
select '[0:1]={1.1,2.2}'::float8[];
|
|
-- all of the above should be accepted
|
|
|
|
-- 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;
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
-- 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;
|
|
select c2[2].f2 from comptable;
|
|
|
|
drop type _comptype;
|
|
drop table comptable;
|
|
drop type comptype;
|
|
|
|
create or replace function unnest1(anyarray)
|
|
returns setof anyelement as $$
|
|
select $1[s] from generate_subscripts($1,1) g(s);
|
|
$$ language sql immutable;
|
|
|
|
create or replace function unnest2(anyarray)
|
|
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]);
|
|
select * from unnest2(array[[1,2,3],[4,5,6]]);
|
|
|
|
drop function unnest1(anyarray);
|
|
drop function unnest2(anyarray);
|
|
|
|
select array_fill(null::integer, array[3,3],array[2,2]);
|
|
select array_fill(null::integer, array[3,3]);
|
|
select array_fill(null::text, array[3,3],array[2,2]);
|
|
select array_fill(null::text, array[3,3]);
|
|
select array_fill(7, array[3,3],array[2,2]);
|
|
select array_fill(7, array[3,3]);
|
|
select array_fill('juhu'::text, array[3,3],array[2,2]);
|
|
select array_fill('juhu'::text, array[3,3]);
|
|
-- raise exception
|
|
select array_fill(1, null, array[2,2]);
|
|
select array_fill(1, array[2,2], null);
|
|
select array_fill(1, array[3,3], array[1,1,1]);
|
|
select array_fill(1, array[1,2,null]);
|
|
|
|
select string_to_array('1|2|3', '|');
|
|
select string_to_array('1|2|3|', '|');
|
|
select string_to_array('1||2|3||', '||');
|
|
select string_to_array('1|2|3', '');
|
|
select string_to_array('', '|');
|
|
select string_to_array('1|2|3', NULL);
|
|
select string_to_array(NULL, '|') IS NULL;
|
|
select string_to_array('abc', '');
|
|
select string_to_array('abc', '', 'abc');
|
|
select string_to_array('abc', ',');
|
|
select string_to_array('abc', ',', 'abc');
|
|
select string_to_array('1,2,3,4,,6', ',');
|
|
select string_to_array('1,2,3,4,,6', ',', '');
|
|
select string_to_array('1,2,3,4,*,6', ',', '*');
|
|
|
|
select array_to_string(NULL::int4[], ',') IS NULL;
|
|
select array_to_string('{}'::int4[], ',');
|
|
select array_to_string(array[1,2,3,4,NULL,6], ',');
|
|
select array_to_string(array[1,2,3,4,NULL,6], ',', '*');
|
|
select array_to_string(array[1,2,3,4,NULL,6], NULL);
|
|
select array_to_string(array[1,2,3,4,NULL,6], ',', NULL);
|
|
|
|
select array_to_string(string_to_array('1|2|3', '|'), '|');
|
|
|
|
select array_length(array[1,2,3], 1);
|
|
select array_length(array[[1,2,3], [4,5,6]], 0);
|
|
select array_length(array[[1,2,3], [4,5,6]], 1);
|
|
select array_length(array[[1,2,3], [4,5,6]], 2);
|
|
select array_length(array[[1,2,3], [4,5,6]], 3);
|
|
|
|
select cardinality(NULL::int[]);
|
|
select cardinality('{}'::int[]);
|
|
select cardinality(array[1,2,3]);
|
|
select cardinality('[2:4]={5,6,7}'::int[]);
|
|
select cardinality('{{1,2}}'::int[]);
|
|
select cardinality('{{1,2},{3,4},{5,6}}'::int[]);
|
|
select cardinality('{{{1,9},{5,6}},{{2,3},{3,4}}}'::int[]);
|
|
|
|
-- array_agg(anynonarray)
|
|
select array_agg(unique1) from (select unique1 from tenk1 where unique1 < 15 order by unique1) ss;
|
|
select array_agg(ten) from (select ten from tenk1 where unique1 < 15 order by unique1) ss;
|
|
select array_agg(nullif(ten, 4)) from (select ten from tenk1 where unique1 < 15 order by unique1) ss;
|
|
select array_agg(unique1) from tenk1 where unique1 < -15;
|
|
|
|
-- array_agg(anyarray)
|
|
select array_agg(ar)
|
|
from (values ('{1,2}'::int[]), ('{3,4}'::int[])) v(ar);
|
|
select array_agg(distinct ar order by ar desc)
|
|
from (select array[i / 2] from generate_series(1,10) a(i)) b(ar);
|
|
select array_agg(ar)
|
|
from (select array_agg(array[i, i+1, i-1])
|
|
from generate_series(1,2) a(i)) b(ar);
|
|
select array_agg(array[i+1.2, i+1.3, i+1.4]) from generate_series(1,3) g(i);
|
|
select array_agg(array['Hello', i::text]) from generate_series(9,11) g(i);
|
|
select array_agg(array[i, nullif(i, 3), i+1]) from generate_series(1,4) g(i);
|
|
-- errors
|
|
select array_agg('{}'::int[]) from generate_series(1,2);
|
|
select array_agg(null::int[]) from generate_series(1,2);
|
|
select array_agg(ar)
|
|
from (values ('{1,2}'::int[]), ('{3}'::int[])) v(ar);
|
|
|
|
select unnest(array[1,2,3]);
|
|
select * from unnest(array[1,2,3]);
|
|
select unnest(array[1,2,3,4.5]::float8[]);
|
|
select unnest(array[1,2,3,4.5]::numeric[]);
|
|
select unnest(array[1,2,3,null,4,null,null,5,6]);
|
|
select unnest(array[1,2,3,null,4,null,null,5,6]::text[]);
|
|
select abs(unnest(array[1,2,null,-3]));
|
|
select array_remove(array[1,2,2,3], 2);
|
|
select array_remove(array[1,2,2,3], 5);
|
|
select array_remove(array[1,NULL,NULL,3], NULL);
|
|
select array_remove(array['A','CC','D','C','RR'], 'RR');
|
|
select array_remove('{{1,2,2},{1,4,3}}', 2); -- not allowed
|
|
select array_remove(array['X','X','X'], 'X') = '{}';
|
|
select array_replace(array[1,2,5,4],5,3);
|
|
select array_replace(array[1,2,5,4],5,NULL);
|
|
select array_replace(array[1,2,NULL,4,NULL],NULL,5);
|
|
select array_replace(array['A','B','DD','B'],'B','CC');
|
|
select array_replace(array[1,NULL,3],NULL,NULL);
|
|
select array_replace(array['AB',NULL,'CDE'],NULL,'12');
|
|
|
|
-- array(select array-value ...)
|
|
select array(select array[i,i/2] from generate_series(1,5) i);
|
|
select array(select array['Hello', i::text] from generate_series(9,11) i);
|
|
|
|
-- 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;
|
|
update t1 set f1[5].q2 = 43;
|
|
select * from t1;
|
|
|
|
-- Check that arrays of composites are safely detoasted when needed
|
|
|
|
create temp table src (f1 text);
|
|
insert into src
|
|
select string_agg(random()::text,'') from generate_series(1,10000);
|
|
create type textandtext as (c1 text, c2 text);
|
|
create temp table dest (f1 textandtext[]);
|
|
insert into dest select array[row(f1,f1)::textandtext] from src;
|
|
select length(md5((f1[1]).c2)) from dest;
|
|
delete from src;
|
|
select length(md5((f1[1]).c2)) from dest;
|
|
truncate table src;
|
|
drop table src;
|
|
select length(md5((f1[1]).c2)) from dest;
|
|
drop table dest;
|
|
drop type textandtext;
|
|
|
|
-- Tests for polymorphic-array form of width_bucket()
|
|
|
|
-- this exercises the varwidth and float8 code paths
|
|
SELECT
|
|
op,
|
|
width_bucket(op::numeric, ARRAY[1, 3, 5, 10.0]::numeric[]) AS wb_n1,
|
|
width_bucket(op::numeric, ARRAY[0, 5.5, 9.99]::numeric[]) AS wb_n2,
|
|
width_bucket(op::numeric, ARRAY[-6, -5, 2.0]::numeric[]) AS wb_n3,
|
|
width_bucket(op::float8, ARRAY[1, 3, 5, 10.0]::float8[]) AS wb_f1,
|
|
width_bucket(op::float8, ARRAY[0, 5.5, 9.99]::float8[]) AS wb_f2,
|
|
width_bucket(op::float8, ARRAY[-6, -5, 2.0]::float8[]) AS wb_f3
|
|
FROM (VALUES
|
|
(-5.2),
|
|
(-0.0000000001),
|
|
(0.000000000001),
|
|
(1),
|
|
(1.99999999999999),
|
|
(2),
|
|
(2.00000000000001),
|
|
(3),
|
|
(4),
|
|
(4.5),
|
|
(5),
|
|
(5.5),
|
|
(6),
|
|
(7),
|
|
(8),
|
|
(9),
|
|
(9.99999999999999),
|
|
(10),
|
|
(10.0000000000001)
|
|
) v(op);
|
|
|
|
-- ensure float8 path handles NaN properly
|
|
SELECT
|
|
op,
|
|
width_bucket(op, ARRAY[1, 3, 9, 'NaN', 'NaN']::float8[]) AS wb
|
|
FROM (VALUES
|
|
(-5.2::float8),
|
|
(4::float8),
|
|
(77::float8),
|
|
('NaN'::float8)
|
|
) v(op);
|
|
|
|
-- these exercise the generic fixed-width code path
|
|
SELECT
|
|
op,
|
|
width_bucket(op, ARRAY[1, 3, 5, 10]) AS wb_1
|
|
FROM generate_series(0,11) as op;
|
|
|
|
SELECT width_bucket(now(),
|
|
array['yesterday', 'today', 'tomorrow']::timestamptz[]);
|
|
|
|
-- corner cases
|
|
SELECT width_bucket(5, ARRAY[3]);
|
|
SELECT width_bucket(5, '{}');
|
|
|
|
-- error cases
|
|
SELECT width_bucket('5'::text, ARRAY[3, 4]::integer[]);
|
|
SELECT width_bucket(5, ARRAY[3, 4, NULL]);
|
|
SELECT width_bucket(5, ARRAY[ARRAY[1, 2], ARRAY[3, 4]]);
|