asterix-app/src/test/resources/optimizerts/queries/count-tweets.aql

/*
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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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drop dataverse twitter if exists;
create dataverse twitter;
use dataverse twitter;

create type Tweet as open {
  id: int32,
  tweetid: int64,
  loc: point,
  time: datetime,
  text: string
}

create external dataset 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";

for $t in dataset('TwitterData')
let $tokens := word-tokens($t.text)
for $token in $tokens
group by $tok := $token with $token
return { "word": $tok, "count": count($token) }