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https://reviews.apache.org/r/33779/
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Review request for drill, abdelhakim deneche, Mehant Baid, and Parth Chandra.


Bugs: DRILL-2932
    https://issues.apache.org/jira/browse/DRILL-2932


Repository: drill-git


Description
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Main:
- Removed the System.out.println(...) from submissionFailed(...).
- Created unit test for execute...(...) exceptions.
- Put UserException's message text in SQLException's message (didn't just wrap).
- Added undoing of extra wrapping by AvaticaStatement.execute...(...).
- Refined related exception handling (handled cases separately, narrowed throws 
declarations and catches).
    
JDBC cleanup:
- Renamed ex -> executionFailureException
- Added getNext() method doc. comment.
- Removed some obsolete alignment spaces.
    
Added DRILL-2933 (SchemaChangeException) "review this" TODOs.
  - DrillCursor;
  - MergingRecordBatch, ParquetResultListener, PrintingResultsListener, 
QueryWrapper, RecordBatchLoader, UnorderedReceiverBatch;
  - TestDrillbitResilience, TestTextColumn, BaseTestQuery, DrillTestWrapper;


Diffs
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exec/java-exec/src/main/java/org/apache/drill/exec/client/PrintingResultsListener.java
 64e7266 
  
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/mergereceiver/MergingRecordBatch.java
 40cbc89 
  
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverBatch.java
 094865e 
  
exec/java-exec/src/main/java/org/apache/drill/exec/record/RecordBatchLoader.java
 088630c 
  
exec/java-exec/src/main/java/org/apache/drill/exec/rpc/user/QueryResultHandler.java
 3beae89 
  
exec/java-exec/src/main/java/org/apache/drill/exec/server/rest/QueryWrapper.java
 aa43aa9 
  exec/java-exec/src/test/java/org/apache/drill/BaseTestQuery.java b02051b 
  exec/java-exec/src/test/java/org/apache/drill/DrillTestWrapper.java d05c896 
  
exec/java-exec/src/test/java/org/apache/drill/exec/server/TestDrillbitResilience.java
 2698701 
  
exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/ParquetResultListener.java
 0e80f91 
  
exec/java-exec/src/test/java/org/apache/drill/exec/store/text/TestTextColumn.java
 3c1a38a 
  exec/jdbc/src/main/java/org/apache/drill/jdbc/DrillCursor.java 41b89ce 
  exec/jdbc/src/main/java/org/apache/drill/jdbc/DrillStatement.java ba265e6 
  exec/jdbc/src/main/java/org/apache/drill/jdbc/impl/DrillResultSetImpl.java 
484a5e5 
  
exec/jdbc/src/test/java/org/apache/drill/jdbc/test/TestExecutionExceptionsToClient.java
 PRE-CREATION 

Diff: https://reviews.apache.org/r/33779/diff/


Testing
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Ran SQLLine to confirm change from System.out plus poor SQLException to good 
SQLException.

Ran new specific unit test.

Ran regular tests; no new failures.


Thanks,

Daniel Barclay

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