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From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-15209) Set hive.strict.checks.cartesian.product to false by default
Date Tue, 15 Nov 2016 17:41:58 GMT
Jesus Camacho Rodriguez created HIVE-15209:
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             Summary: Set hive.strict.checks.cartesian.product to false by default
                 Key: HIVE-15209
                 URL: https://issues.apache.org/jira/browse/HIVE-15209
             Project: Hive
          Issue Type: Bug
          Components: Parser
    Affects Versions: 2.2.0
            Reporter: Jesus Camacho Rodriguez
            Assignee: Jesus Camacho Rodriguez


If we aim to make Hive compliant with SQL, w should disable this property by default, as expressing
a cartesian product, though inefficient, is perfectly valid in SQL.

Further, if we express complex predicates in the ON clause of a SQL query, we might not be
able to push these predicates to the join operator; however, we should still be able to execute
the query.



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