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https://reviews.apache.org/r/56110/
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Review request for hive and Jason Dere.
Bugs: HIVE-15760
https://issues.apache.org/jira/browse/HIVE-15760
Repository: hive-git
Description
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Fix ConcurrentModification Excpetion when removing semijoin operator due to a
cycle created by Mapjoin-Mapjoin-semijoin.
It now traverses the graph and prepares a list of potential candidates and then
processes them in 2nd pass.
Did the similar changes for SMBJoin related semijoin removal logic.
Diffs
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ql/src/java/org/apache/hadoop/hive/ql/parse/TezCompiler.java cf8e843
Diff: https://reviews.apache.org/r/56110/diff/
Testing
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Thanks,
Deepak Jaiswal
