[jira] [Created] (ASTERIXDB-1368) Equality joins on primary key attributes should always pick index join

[Yingyi Bu (JIRA)]

Yingyi Bu created ASTERIXDB-1368:
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             Summary: Equality joins on primary key attributes should always 
pick index join
                 Key: ASTERIXDB-1368
                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1368
             Project: Apache AsterixDB
          Issue Type: Improvement
            Reporter: Yingyi Bu


Currently the default join method is hash join, we need to hint a query to use 
index join.  However, the primary key equality join, index join should be 
always not worse than hash join.



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