asterix-graphix/src/test/resources/runtimets/queries/graphix/scope-validation/scope-validation.4.query.sqlpp

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 * 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,
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// Scope should be respected when a variable is re-declared in another graph query.
FROM GRAPH  VERTEX (:User)
                   PRIMARY KEY (user_id)
                   AS Yelp.Users,
            VERTEX (:Review)
                   PRIMARY KEY (review_id)
                   AS Yelp.Reviews,
            EDGE   (:Review)-[:MADE_BY]->(:User)
                   SOURCE KEY (review_id)
                   DESTINATION KEY (user_id)
                   AS ( FROM    Yelp.Reviews R
                        SELECT  R.review_id, R.user_id )
MATCH       (u:User)<-(r)
WHERE       EXISTS ( FROM GRAPH  VERTEX (:User)
                                 PRIMARY KEY (user_id)
                                 AS Yelp.Users
                     MATCH       (u:User)
                     WHERE       u.user_id = 1
                     SELECT      VALUE 1 )
SELECT      u.user_id, r.review_id
ORDER BY    u.user_id, r.review_id;