asterixdb/asterix-app/src/test/resources/optimizerts/queries/query-ASTERIXDB-1263.aql

/*
 * 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.
 */

drop dataverse TinySocial if exists;
create dataverse TinySocial;
use dataverse TinySocial;

create type TwitterUserType as open {
        screen-name: string,
        lang: string,
        friends_count: int64,
        statuses_count: int64,
        name: string,
        followers_count: int64
}

create type TweetMessageType as closed {
        tweetid: string,
        user: TwitterUserType,
        sender-location: point?,
        send-time: datetime,
        referred-topics: {{ string }},
        message-text: string
}

create dataset TweetMessages(TweetMessageType)
primary key tweetid;

for $t in dataset TweetMessages
group by $d:= get-hour($t.send-time) with $t
return { "hour": $d,
         "count": count($t),
         "finer":  for $k in $t
                   group by $min:= get-minute($k.create_at) with $k
                   order by $min
                   return {  "minute": $min, "sum": count($k)}
}