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From "Prasad Mujumdar" <pras...@cloudera.com>
Subject Review Request: Hive-727 : Add a schema for explain statement resultset
Date Thu, 20 Oct 2011 23:03:10 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/2517/
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Review request for hive and Carl Steinbach.


Summary
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Added a method to get result schema from a Task. The ExplainSemanticAnalyzer invokes this
to get the schema for explain statement which is a single string column.


This addresses bug Hive-727.
    https://issues.apache.org/jira/browse/Hive-727


Diffs
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  jdbc/src/test/org/apache/hadoop/hive/jdbc/TestJdbcDriver.java 4972754 
  ql/src/java/org/apache/hadoop/hive/ql/exec/ExplainTask.java fe95cb1 
  ql/src/java/org/apache/hadoop/hive/ql/exec/Task.java 41d2a81 
  ql/src/java/org/apache/hadoop/hive/ql/parse/ExplainSemanticAnalyzer.java fc22535 

Diff: https://reviews.apache.org/r/2517/diff


Testing
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Added  a new test case in TestJdbcDriver to run  explain statement and verify resultset metadata



Thanks,

Prasad


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