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https://issues.apache.org/jira/browse/HIVE-2553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13145713#comment-13145713
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jirapos...@reviews.apache.org commented on HIVE-2553:
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trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFIn.java
<https://reviews.apache.org/r/2733/#comment6866>

    One of Hive's coding style is variable should be defined as interface (Set) 
rather than implementation (HashSet). 



trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFIn.java
<https://reviews.apache.org/r/2733/#comment6867>

    Please add a comment on why starting from index 1, and your assumption that 
this function should only be called when the ObjectInspect is for primitive 
types. 



trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFIn.java
<https://reviews.apache.org/r/2733/#comment6886>

    Please take a look at constant OI (HIVE-1360) and see if it applies here. 


- Ning


On 2011-11-05 03:02:38, Robert Surówka wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/2733/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2011-11-05 03:02:38)
bq.  
bq.  
bq.  Review request for Ning Zhang.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  Introduction of Hashing for IN operator for primitive types
bq.  
bq.  
bq.  This addresses bug HIVE-2553.
bq.      https://issues.apache.org/jira/browse/HIVE-2553
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/TableScanOperator.java 
1197870 
bq.    
trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFIn.java 
1197870 
bq.    
trunk/serde/src/java/org/apache/hadoop/hive/serde2/typeinfo/StructTypeInfo.java 
1197870 
bq.  
bq.  Diff: https://reviews.apache.org/r/2733/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  Worked on some sample queries
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Robert
bq.  
bq.


                
> Use hashing instead of list traversal for IN operator for primitive types
> -------------------------------------------------------------------------
>
>                 Key: HIVE-2553
>                 URL: https://issues.apache.org/jira/browse/HIVE-2553
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Robert Surówka
>            Assignee: Robert Surówka
>            Priority: Minor
>         Attachments: HIVE-2553.1.patch
>
>


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