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From "Sean Hsuan-Yi Chu" <hsua...@usc.edu>
Subject Re: Review Request 29549: DRILL-1874: Text reader should allow treating empty fields as NULLs instead of empty string
Date Sun, 04 Jan 2015 23:46:33 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/29549/
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(Updated Jan. 4, 2015, 11:46 p.m.)


Review request for drill, Aman Sinha and Jinfeng Ni.


Bugs: DRILL-1874
    https://issues.apache.org/jira/browse/DRILL-1874


Repository: drill-git


Description
-------

Users can choose to use safe (for varchar inputs)/default cast functions by setting sesseion
variable ("alter session set `planner.safe_cast_varchar` = true;").

Add comments, Clean Codes


Diffs (updated)
-----

  common/src/main/java/org/apache/drill/common/expression/fn/CastFunctions.java 61d149d 
  exec/java-exec/src/main/codegen/data/Casts.tdd 36c90c9 
  exec/java-exec/src/main/codegen/templates/CastSafeFromNonnullableFunctions.java PRE-CREATION

  exec/java-exec/src/main/codegen/templates/CastSafeFromNullableFunctions.java PRE-CREATION

  exec/java-exec/src/main/java/org/apache/drill/exec/ExecConstants.java b390cd5 
  exec/java-exec/src/main/java/org/apache/drill/exec/expr/ExpressionTreeMaterializer.java
0f40958 
  exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/project/ProjectRecordBatch.java
fa983aa 
  exec/java-exec/src/main/java/org/apache/drill/exec/server/options/SystemOptionManager.java
34729e2 
  exec/java-exec/src/main/java/org/apache/drill/exec/store/text/DrillTextRecordReader.java
e0cce8b 

Diff: https://reviews.apache.org/r/29549/diff/


Testing
-------

unit tests,
functional tests,
tpch tests


Thanks,

Sean Hsuan-Yi Chu


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