Github user orhankislal commented on a diff in the pull request:
https://github.com/apache/incubator-madlib/pull/65#discussion_r75954265
--- Diff: src/ports/postgres/modules/utilities/test/pivot.sql_in ---
@@ -152,15 +152,19 @@ SELECT assert(__p_7__ = 1.5,
'Wrong output in pivoting: Output dictionary') FROM pivout
WHERE id = 0 AND id2 = 0;
-DROP AGGREGATE IF EXISTS array_accum (anyelement);
-CREATE AGGREGATE array_accum (anyelement)
-(
- sfunc = array_append,
+DROP FUNCTION IF EXISTS array_add1(ANYARRAY, ANYELEMENT);
+DROP AGGREGATE IF EXISTS array_accum1 (anyelement);
+CREATE FUNCTION array_add1(ANYARRAY, ANYELEMENT) RETURNS ANYARRAY AS $$
+ SELECT $1 || $2
+$$ LANGUAGE sql STRICT;
--- End diff --
I still appreciate the pointer. This test exists to ensure user defined
aggregates work with pivoting in addition to the built-in ones.
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