| /* |
| * 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 database twitter if exists; |
| create database twitter; |
| |
| use twitter; |
| |
| |
| create type twitter.Tweet as |
| { |
| id : int32, |
| tweetid : int64, |
| loc : point, |
| time : datetime, |
| text : string |
| } |
| |
| create external table TwitterData(Tweet) using "org.apache.asterix.external.dataset.adapter.NCFileSystemAdapter"(("path"="asterix_nc1://data/twitter/smalltweets.txt"),("format"="adm")); |
| |
| write output to asterix_nc1:"/tmp/count-tweets.adm" |
| select element {'word':tok,'count':twitter.count(token)} |
| from TwitterData as t, |
| tokens as token |
| with tokens as twitter."word-tokens"(t.text) |
| group by token as tok |
| ; |