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Posted to dev@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2016/11/15 17:41:58 UTC
[jira] [Created] (HIVE-15209) Set
hive.strict.checks.cartesian.product to false by default
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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