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https://reviews.apache.org/r/12926/
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Review request for hive.


Bugs: HIVE-4512
    https://issues.apache.org/jira/browse/HIVE-4512


Repository: hive-git


Description
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Implemented end-to-end support for SUBSTR() with changes to 
VectorizationContext class


Diffs
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  ql/src/java/org/apache/hadoop/hive/ql/exec/vector/VectorizationContext.java 
9c90230 
  
ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/StringConcatColScalar.java
 29ef244 
  
ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/StringConcatScalarCol.java
 14205ee 

Diff: https://reviews.apache.org/r/12926/diff/


Testing
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Verified all these queries run vectorized:

explain 
select l_shipmode, concat(l_shipmode, "<<<")
from lineitem_orc 
where l_orderkey = 1;

select l_shipmode, concat('>>>', l_shipmode)
from lineitem_orc 
where l_orderkey = 1;

select l_shipmode, concat('>>>', l_shipmode)
from lineitem_orc 
where l_orderkey = 1
and lower(l_shipmode) = 'mail';


select l_shipmode, concat(l_shipmode, l_shipmode)
from lineitem_orc 
where l_orderkey = 1;

select l_shipmode, concat(lower(l_shipmode), upper(lower(l_shipmode)))
from lineitem_orc 
where l_orderkey = 1;


Thanks,

Eric Hanson

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