[ 
https://issues.apache.org/jira/browse/HCATALOG-241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205101#comment-13205101
 ] 

[email protected] commented on HCATALOG-241:
--------------------------------------------------------



bq.  On 2012-02-09 19:26:50, Francis Liu wrote:
bq.  > /trunk/src/java/org/apache/hcatalog/data/HCatRecord.java, line 143
bq.  > <https://reviews.apache.org/r/3819/diff/1/?file=73305#file73305line143>
bq.  >
bq.  >     you be comparing this. you're breaking the transitivity contract for 
the compareTo method
bq.  
bq.  Francis Liu wrote:
bq.      *you shouldn't be comparing this.
bq.  
bq.  Francis Liu wrote:
bq.      oops i meant reflexive.
bq.  
bq.  Sushanth Sowmyan wrote:
bq.      I'm not sure I understand - compareTo returns -1, 0 or 1 depending on 
the comparison.
bq.      
bq.      a.compareTo(b) is intended to be negative of b.compareTo(a) unless 
they are equal. A compare operation is not reflexive.
bq.  
bq.  Francis Liu wrote:
bq.      When they are equal it should be reflexive. When they are not one 
should be the inverse of the other. 
bq.      
bq.      Ok the first statement sounds a bit contradicting.
bq.      
bq.      Formally what I mean to say is this:
bq.      
bq.      sgn(x.compareTo(y)) == -sgn(y.compareTo(x))
bq.      
bq.      Which in this case it is not, since a dataType.compareTo(hcatRecord) 
throws an exception (and rightfully so) it does not satisfy the contract. 
Though I guess this argument is moot now since we're dropping compareTo.
bq.      
bq.      
bq.      
bq.      
bq.      
bq.      
bq.

Just looked at DataType.Compare() it doesn't recognize HCatRecord, I thought it 
would compare a specific field. In this case I don't even know why that's 
include in the compareTo clause in the first place.


- Francis


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/3819/#review4977
-----------------------------------------------------------


On 2012-02-09 00:54:29, Sushanth Sowmyan wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/3819/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2012-02-09 00:54:29)
bq.  
bq.  
bq.  Review request for Alan Gates and Francis Liu.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  Initial upload.
bq.  
bq.  
bq.  This addresses bug HCATALOG-241.
bq.      https://issues.apache.org/jira/browse/HCATALOG-241
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    /trunk/src/java/org/apache/hcatalog/common/HCatUtil.java 1242037 
bq.    /trunk/src/java/org/apache/hcatalog/data/DefaultHCatRecord.java 1242037 
bq.    /trunk/src/java/org/apache/hcatalog/data/HCatRecord.java 1242037 
bq.    /trunk/src/java/org/apache/hcatalog/data/HCatRecordObjectInspector.java 
1242037 
bq.    /trunk/src/java/org/apache/hcatalog/data/HCatRecordSerDe.java 1242037 
bq.    /trunk/src/java/org/apache/hcatalog/data/HCatRecordable.java 1242037 
bq.    /trunk/src/java/org/apache/hcatalog/data/LazyHCatRecord.java 
PRE-CREATION 
bq.    /trunk/src/test/org/apache/hcatalog/data/TestHCatRecordSerDe.java 
1242037 
bq.  
bq.  Diff: https://reviews.apache.org/r/3819/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Sushanth
bq.  
bq.


                
> Changes to HCatRecord to support switch from StorageDriver to SerDe
> -------------------------------------------------------------------
>
>                 Key: HCATALOG-241
>                 URL: https://issues.apache.org/jira/browse/HCATALOG-241
>             Project: HCatalog
>          Issue Type: Sub-task
>    Affects Versions: 0.4
>            Reporter: Alan Gates
>            Assignee: Sushanth Sowmyan
>             Fix For: 0.4
>
>         Attachments: HCATALOG-241.patch
>
>
> This JIRA tracks changes to HCatRecord.  See HCATALOG-237 for details and 
> design notes.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: 
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Reply via email to