asterix-app/src/test/resources/optimizerts/queries/udfs/query-ASTERIXDB-1017-recursive.aql

/*
 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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.
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drop dataverse emergencyTest if exists;
create dataverse emergencyTest;
use dataverse emergencyTest;

create type CHPReport as
{ "rid":uuid, "epicenter":point, "radius":double }

create type userLocation as
{ "id":uuid, "user-id":int64, "location":point }

create type tornadoShelter as
{ "tsid":uuid, "location":point }

create type sub as closed
{ "id":int, "param0":int64 }

create dataset NearbySheltersDuringTornadoDangerChannelSubscriptions(sub)
primary key id;

create dataset tornadoShelters(tornadoShelter)
primary key tsid autogenerated;

create dataset userLocations(userLocation)
primary key id autogenerated;

create dataset CHPReports(CHPReport)
primary key rid autogenerated;


create function NearbySheltersDuringTornadoDanger($userid) {
   for $emergency in dataset CHPReports
   let $dangerzone := create-circle($emergency.epicenter,$emergency.radius)
   where (some $user in dataset userLocations satisfies $user.user-id = $userid
          and spatial-intersect($dangerzone, $user.location))
   return
   { "shelter locations":for $shelter in dataset tornadoShelters return $shelter.location}
};

create function findShelters($id){
    for $result in NearbySheltersDuringTornadoDanger($id)
    return { "subscription-id":$id,"execution-time":current-datetime(),"result":$result }
};

for $sub in dataset NearbySheltersDuringTornadoDangerChannelSubscriptions
for $r in findShelters($sub.param0)
return $r;