{foo,new_word} | 2 | {bar,foo} | 2
(3 rows)
-select array_agg(unique1) from tenk1 where unique1 < 15;
+select array_agg(unique1) from (select unique1 from tenk1 where unique1 < 15 order by unique1) ss;
array_agg
--------------------------------------
- {4,2,1,6,14,9,8,5,3,13,12,11,7,10,0}
+ {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14}
(1 row)
-select array_agg(ten) from tenk1 where unique1 < 15;
+select array_agg(ten) from (select ten from tenk1 where unique1 < 15 order by unique1) ss;
array_agg
---------------------------------
- {4,2,1,6,4,9,8,5,3,3,2,1,7,0,0}
+ {0,1,2,3,4,5,6,7,8,9,0,1,2,3,4}
(1 row)
-select array_agg(nullif(ten, 4)) from tenk1 where unique1 < 15;
+select array_agg(nullif(ten, 4)) from (select ten from tenk1 where unique1 < 15 order by unique1) ss;
array_agg
---------------------------------------
- {NULL,2,1,6,NULL,9,8,5,3,3,2,1,7,0,0}
+ {0,1,2,3,NULL,5,6,7,8,9,0,1,2,3,NULL}
(1 row)
select cardinality(array_agg(unique1)) from tenk1 where unique1 < 15;
15
(1 row)
-select array_agg(unique1) from (select * from tenk1 order by unique1 asc) as tab where unique1 < 15;
- array_agg
---------------------------------------
- {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14}
-(1 row)
-
select array_agg(unique1) from tenk1 where unique1 < -15;
array_agg
-----------
select cardinality(array[[1,2,3], [4,5,6]]);
select c, cardinality(c), d, cardinality(d) from arrtest;
-select array_agg(unique1) from tenk1 where unique1 < 15;
-select array_agg(ten) from tenk1 where unique1 < 15;
-select array_agg(nullif(ten, 4)) from tenk1 where unique1 < 15;
+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 cardinality(array_agg(unique1)) from tenk1 where unique1 < 15;
-select array_agg(unique1) from (select * from tenk1 order by unique1 asc) as tab where unique1 < 15;
select array_agg(unique1) from tenk1 where unique1 < -15;
select unnest(array[1,2,3]);