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array_agg aggregate function, as per SQL:2008, but without ORDER BY clause

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Rearrange the documentation a bit now that array_agg and xmlagg have similar
semantics and issues.

best of Robert Haas, Jeff Davis, Peter Eisentraut
This commit is contained in:
Peter Eisentraut
2008-11-13 15:59:51 +00:00
parent 69a0e2f76d
commit 3379fae6de
9 changed files with 164 additions and 23 deletions
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7
src/test/regress/sql/arrays.sql
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@ -395,3 +395,10 @@ select array_length(array[[1,2,3], [4,5,6]], 3);
select cardinality(array[1,2,3]);
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 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;