ASTERIXDB-1322: fix the AQL translator and add tests.
Change-Id: I994bb69ca989c8c9e2ce417d62739a859e5ae94b
Reviewed-on: https://asterix-gerrit.ics.uci.edu/663
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>
diff --git a/asterix-app/src/test/resources/optimizerts/queries/udfs/query-ASTERIXDB-1308-1.aql b/asterix-app/src/test/resources/optimizerts/queries/udfs/query-ASTERIXDB-1308-1.aql
new file mode 100644
index 0000000..2f56f85
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/udfs/query-ASTERIXDB-1308-1.aql
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+declare function median($x)
+{
+ let $c := count($x)
+ return avg(
+ for $i at $p in (for $j in $x order by $j return $j)
+ where $p >= floor(($c-1)/2.0) and $p <= $c/2
+ return $i
+ )
+}
+
+
+declare function MAD($x)
+{
+ let $m := median($x)
+ return median(for $j in $x order by abs($j-$m) return abs($j-$m))
+}
+
+MAD([2, 3, 4, 1, 5, 6, 10, 0])
+