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https://issues.apache.org/jira/browse/HCATALOG-2?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13192419#comment-13192419
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Ashutosh Chauhan edited comment on HCATALOG-2 at 1/24/12 7:31 PM:
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Sorry, Julien for being late on this one. I have a question. If the Pig field
has the schema bag { tuple : ( bag: {tuple (i : int))}} this should get
translated into array<struct<array<i:int>>> , If I am reading the code
correctly but current patch wont do that. Will it? I think it will generate
array<struct<array<struct<i:int>>>> Can you add a test case for it?
was (Author: ashutoshc):
Sorry, Julien for being late on this one. I have a question. If the Pig
field has the schema {{ bag { tuple : ( bag: {tuple (i : int))}} }} this should
get translated into {{ array<struct<array<i:int>>> }}, If I am reading the code
correctly but current patch wont do that. Will it? I think it will generate {{
array<struct<array<struct<i:int>>>> }} Can you add a test case for it?
> Support nested schema conversion between Hive an Pig
> ----------------------------------------------------
>
> Key: HCATALOG-2
> URL: https://issues.apache.org/jira/browse/HCATALOG-2
> Project: HCatalog
> Issue Type: Improvement
> Affects Versions: 0.1
> Reporter: Julien Le Dem
> Assignee: Julien Le Dem
> Attachments: HCAT-2.patch
>
>
> Hive supports STRUCT and ARRAY
> Pig supports Tuple and Bag
> In both cases the types can be arbitrarily nested.
> example:
> STRUCT< foo : ARRAY<STRUCT < bar1: STRING, bar2: STRING > > mystruct
> mytuple: ( foo: { t: ( bar1:chararray, bar2:chararray ) } )
> HCatalog should support nested schema conversion.
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