asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/issue741.aql

/*
 * Description  : Test that left-outer-join may use an available inverted index in index subtree.
 * Issue        : 741              
 * Expected Res : Success
 * Date         : 16th May 2014
 */

drop dataverse test if exists;
create dataverse test;
use dataverse test;

create type TwitterUserType as {
screen_name: string,
lang: string,
friends_count: int32,
statuses_count: int32,
name: string,
followers_count: int32
}

create type TweetMessageType as {
tweetid: int64,     
user: TwitterUserType,
sender_location: point?,
send_time: datetime,
referred_topics: {{ string }},
message_text: string
}

create dataset TweetMessages(TweetMessageType) primary key tweetid;

create index topicIIx on TweetMessages(referred_topics) type keyword;

write output to nc1:"rttest/inverted-index-join_issue741.adm";

for $t in dataset('TweetMessages')
where $t.send_time >= datetime('2011-06-18T14:10:17')
and 
$t.send_time < datetime('2011-06-18T15:10:17')
return {                     
    "tweet": $t.tweetid,               
    "similar-tweets": for $t2 in dataset('TweetMessages')
                      let $sim := similarity-jaccard-check($t.referred_topics, $t2.referred_topics, 0.6f)
		      where $sim[0] and 
                      $t2.tweetid != $t.tweetid
                      return $t2.tweetid
}