Review Request 33806: Add Tree traversal tools to ParseUtil class that allow for checking node structures with general predicate

[Reuben Kuhnert]

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Review request for hive and Sergio Pena.


Bugs: HIVE-10190
    https://issues.apache.org/jira/browse/HIVE-10190


Repository: hive-git


Description
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HIVE-10190: CBO: AST mode checks for TABLESAMPLE with 
AST.toString().contains("TOK_TABLESPLITSAMPLE")


Diffs
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  ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/HiveCalciteUtil.java 
7614463525262f01375c1336e89a18670862bb7d 
  ql/src/java/org/apache/hadoop/hive/ql/parse/ParseUtils.java 
373429cbf666f1b19828c532aea3c07f08f95e1a 

Diff: https://reviews.apache.org/r/33806/diff/


Testing
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Tested locally


Thanks,

Reuben Kuhnert