Takuya Ueshin created SPARK-1889:
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Summary: Apply splitConjunctivePredicates to join condition while
finding join keys.
Key: SPARK-1889
URL: https://issues.apache.org/jira/browse/SPARK-1889
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Takuya Ueshin
When tables are equi-joined by multiple-keys {{HashJoin}} should be used, but
{{CartesianProduct}} and then {{Filter}} are used.
The join keys are paired by {{And}} expression so we need to apply
{{splitConjunctivePredicates}} to join condition while finding join keys.
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