[jira] [Created] (HIVE-13317) HCatalog unable to read changed column structure

["Bala Divvela (JIRA)" <ji...@apache.org>]

Bala Divvela created HIVE-13317:
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             Summary: HCatalog unable to read changed column structure
                 Key: HIVE-13317
                 URL: https://issues.apache.org/jira/browse/HIVE-13317
             Project: Hive
          Issue Type: Bug
          Components: Hive
            Reporter: Bala Divvela
            Priority: Minor


I have a table t1 which has a single column of datatype array of struct like `a_details array<struct<a1:string,id:string,number:string>>`. It has few records for partition up=1 which can be read from both Hive and Pig(via HCatalog) properly.

Now i need a requirement of adding one more sub column in a_details struct. new structure would be 
`a_details array<struct<a1:string,id:string,number:string,gender:string>>`. After the column change few more records have been appended in one more partition ups=2.

Now i am able to read only up=2 partitions data from Pig(HCatalog).
When i try to load up=1 data from t1 table using Pig HCatalog it throws an exception "ERROR converting read value to tuple".

FYI, I can read all the data from hive properly, it throws exception only when i load from pig using HCatalog. 

Please help me in resolving this.



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