asterix-examples/src/main/resources/tweetbook-demo/static/data/query.txt

drop dataverse twitter if exists;
create dataverse twitter;
use dataverse twitter;

create type TweetbookEntry as open {
    tweetid: string,
    comment-text: string                
}

create type TwitterUserType as open {
    screen-name: string,
    lang: string,
    friends_count: int32,
    statuses_count: int32,
    name: string,
    followers_count: int32
}

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;

create dataset TweetMessagesShifted(TweetMessageType)
primary key tweetid;

load dataset TweetMessages using localfs
(("path"="localhost://FULL_PATH/twm.adm"),("format"="adm"));

insert into dataset TweetMessagesShifted
(
for $t in dataset TweetMessages return {
    "tweetid" : $t.tweetid,
    "user" : $t.user,
    "sender-location" : create-point(get-x($t.sender-location), -1*get-y($t.sender-location)),
    "send-time" : $t.send-time,
    "referred-topics": $t.referred-topics,
    "message-text": $t.message-text
}
);