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--
-- ARRAYS
--
CREATE TABLE arrtest (
	a 			int2[],
	b 			int4[][][],
	c 			name[],
	d			text[][], 
	e 			float8[],
	f			char(5)[],
	g			varchar(5)[]
);
--
-- only the 'e' array is 0-based, the others are 1-based.
--
INSERT INTO arrtest (a[1:5], b[1:1][1:2][1:2], c, d, f, g)
   VALUES ('{1,2,3,4,5}', '{{{0,0},{1,2}}}', '{}', '{}', '{}', '{}');
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)
INSERT INTO arrtest (a, b[1:2][1:2], c, d, e, f, g)
   VALUES ('{11,12,23}', '{{3,4},{4,5}}', '{"foobar"}', 
           '{{"elt1", "elt2"}}', '{"3.4", "6.7"}',
           '{"abc","abcde"}', '{"abc","abcde"}');
INSERT INTO arrtest (a, b[1:2], c, d[1:2])
   VALUES ('{}', '{3,4}', '{foo,bar}', '{bar,foo}');
SELECT * FROM arrtest;
      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}     |                 |                 | 
(3 rows)

SELECT arrtest.a[1],
          arrtest.b[1][1][1],
          arrtest.c[1],
          arrtest.d[1][1], 
          arrtest.e[0]
   FROM arrtest;
 a  | b |   c    |  d   |  e  
----+---+--------+------+-----
  1 | 0 |        |      | 1.1
 11 |   | foobar | elt1 |    
    |   | foo    |      |    
(3 rows)

SELECT a[1], b[1][1][1], c[1], d[1][1], e[0]
   FROM arrtest;
 a  | b |   c    |  d   |  e  
----+---+--------+------+-----
  1 | 0 |        |      | 1.1
 11 |   | foobar | elt1 |    
    |   | foo    |      |    
(3 rows)

SELECT a[1:3],
          b[1:1][1:2][1:2],
          c[1:2], 
          d[1:1][1:2]
   FROM arrtest;
     a      |        b        |     c     |       d       
------------+-----------------+-----------+---------------
 {1,2,3}    | {{{0,0},{1,2}}} | {}        | {}
 {11,12,23} | {}              | {foobar}  | {{elt1,elt2}}
 {}         | {}              | {foo,bar} | {}
(3 rows)

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)

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]
(3 rows)

-- returns nothing 
SELECT *
   FROM arrtest
   WHERE a[1] < 5 and 
         c = '{"foobar"}'::_name;
 a | b | c | d | e | f | g 
---+---+---+---+---+---+---
(0 rows)

UPDATE arrtest
  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;
       a       |           b           |         c         
---------------+-----------------------+-------------------
 {16,25,3,4,5} | {{{113,142},{1,147}}} | {}
 {}            | {3,4}                 | {foo,new_word}
 {16,25,23}    | {{3,4},{4,5}}         | {foobar,new_word}
(3 rows)

SELECT a[1:3],
          b[1:1][1:2][1:2],
          c[1:2], 
          d[1:1][2:2]
   FROM arrtest;
     a      |           b           |         c         |    d     
------------+-----------------------+-------------------+----------
 {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}
(3 rows)

--
-- 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)

--
-- 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)

-- with nulls
SELECT '{1,null,3}'::int[];
    int4    
------------
 {1,NULL,3}
(1 row)

SELECT ARRAY[1,NULL,3];
   array    
------------
 {1,NULL,3}
(1 row)

-- functions
SELECT array_append(array[42], 6) AS "{42,6}";
 {42,6} 
--------
 {42,6}
(1 row)

SELECT array_prepend(6, array[42]) AS "{6,42}";
 {6,42} 
--------
 {6,42}
(1 row)

SELECT array_cat(ARRAY[1,2], ARRAY[3,4]) AS "{1,2,3,4}";
 {1,2,3,4} 
-----------
 {1,2,3,4}
(1 row)

SELECT array_cat(ARRAY[1,2], ARRAY[[3,4],[5,6]]) AS "{{1,2},{3,4},{5,6}}";
 {{1,2},{3,4},{5,6}} 
---------------------
 {{1,2},{3,4},{5,6}}
(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}";
 {0,1,2} 
---------
 {0,1,2}
(1 row)

SELECT ARRAY[1,2] || ARRAY[3,4] AS "{1,2,3,4}";
 {1,2,3,4} 
-----------
 {1,2,3,4}
(1 row)

SELECT ARRAY[[['hello','world']]] || ARRAY[[['happy','birthday']]] AS "ARRAY";
                ARRAY                 
--------------------------------------
 {{{hello,world}},{{happy,birthday}}}
(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)

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}
(1 row)

SELECT 0 || ARRAY[1,2] || 3 AS "{0,1,2,3}";
 {0,1,2,3} 
-----------
 {0,1,2,3}
(1 row)

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)

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)

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)

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)

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}
    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)

SELECT * FROM array_op_test WHERE i <@ '{38,34,32,89}' ORDER BY seqno;
 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}
(3 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)

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)

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)

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)

SELECT * FROM array_op_test WHERE t @> '{AAAAAAAA72908,AAAAAAAAAA646}' ORDER BY seqno;
 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)

SELECT * FROM array_op_test WHERE t <@ '{AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}' ORDER BY seqno;
 seqno |         i          |                                                     t                                                     
-------+--------------------+-----------------------------------------------------------------------------------------------------------
    22 | {11,6,56,62,53,30} | {AAAAAAAA72908}
    45 | {99,45}            | {AAAAAAAA72908,AAAAAAAAAAAAAAAAAAA17075,AA88409,AAAAAAAAAAAAAAAAAA36842,AAAAAAA48038,AAAAAAAAAAAAAA10611}
(2 rows)

-- 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)

-- 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
LINE 1: select 33 * any ('{1,2,3}');
                  ^
select 33 * any (44);
ERROR:  op ANY/ALL (array) requires array on right side
LINE 1: select 33 * any (44);
                  ^
-- 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)

-- test indexes on arrays
create temp table arr_tbl (f1 int[] unique);
NOTICE:  CREATE TABLE / UNIQUE will create implicit index "arr_tbl_f1_key" for table "arr_tbl"
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}');
ERROR:  duplicate key value violates unique constraint "arr_tbl_f1_key"
DETAIL:  Key (f1)=({1,2,3}) already exists.
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;
set enable_bitmapscan to off;
select * from arr_tbl where f1 > '{1,2,3}' and f1 <= '{1,5,3}';
    f1    
----------
 {1,2,10}
 {1,5,3}
(2 rows)

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,
-- then you didn't get an indexscan plan, and something is busted.
reset enable_seqscan;
reset enable_bitmapscan;
-- 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)

--
-- 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}}"
LINE 1: select '{{1,{2}},{2,3}}'::text[];
               ^
select '{{},{}}'::text[];
ERROR:  malformed array literal: "{{},{}}"
LINE 1: select '{{},{}}'::text[];
               ^
select E'{{1,2},\\{2,3}}'::text[];
ERROR:  malformed array literal: "{{1,2},\{2,3}}"
LINE 1: select E'{{1,2},\\{2,3}}'::text[];
               ^
select '{{"1 2" x},{3}}'::text[];
ERROR:  malformed array literal: "{{"1 2" x},{3}}"
LINE 1: select '{{"1 2" x},{3}}'::text[];
               ^
select '{}}'::text[];
ERROR:  malformed array literal: "{}}"
LINE 1: select '{}}'::text[];
               ^
select '{ }}'::text[];
ERROR:  malformed array literal: "{ }}"
LINE 1: select '{ }}'::text[];
               ^
select array[];
ERROR:  cannot determine type of empty array
LINE 1: select array[];
               ^
HINT:  Explicitly cast to the desired type, for example ARRAY[]::integer[].
-- 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)

select array[]::text[];
 array 
-------
 {}
(1 row)

select '[0:1]={1.1,2.2}'::float8[];
     float8      
-----------------
 [0:1]={1.1,2.2}
(1 row)

-- 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;
    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)

-- 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;
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]);
 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);
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]);
ERROR:  dimension array or low bound array cannot be NULL
select array_fill(1, array[2,2], null);
ERROR:  dimension array or low bound array cannot be NULL
select array_fill(1, array[3,3], array[1,1,1]);
ERROR:  wrong number of array subscripts
DETAIL:  Low bound array has different size than dimensions array.
select array_fill(1, array[1,2,null]);
ERROR:  dimension values cannot be null
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 
-----------------
 
(1 row)

select string_to_array('1|2|3', NULL);
 string_to_array 
-----------------
 
(1 row)

select string_to_array(NULL, '|');
 string_to_array 
-----------------
 
(1 row)

select array_to_string(string_to_array('1|2|3', '|'), '|');
 array_to_string 
-----------------
 1|2|3
(1 row)

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)

select array_agg(unique1) from (select unique1 from tenk1 where unique1 < 15 order by unique1) ss;
              array_agg               
--------------------------------------
 {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14}
(1 row)

select array_agg(ten) from (select ten from tenk1 where unique1 < 15 order by unique1) ss;
            array_agg            
---------------------------------
 {0,1,2,3,4,5,6,7,8,9,0,1,2,3,4}
(1 row)

select array_agg(nullif(ten, 4)) from (select ten from tenk1 where unique1 < 15 order by unique1) ss;
               array_agg               
---------------------------------------
 {0,1,2,3,NULL,5,6,7,8,9,0,1,2,3,NULL}
(1 row)

select array_agg(unique1) from tenk1 where unique1 < -15;
 array_agg 
-----------
 
(1 row)

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)