[
https://issues.apache.org/jira/browse/PARQUET-1987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17287833#comment-17287833
]
Micah Kornfield commented on PARQUET-1987:
------------------------------------------
CC [~raduteodorescu]
> Document how a schema can have columns splitted over different files
> ---------------------------------------------------------------------
>
> Key: PARQUET-1987
> URL: https://issues.apache.org/jira/browse/PARQUET-1987
> Project: Parquet
> Issue Type: Improvement
> Reporter: Carlos Diogo
> Priority: Minor
>
> In the design overview is stated that the format supports that columns of a
> given schema are splitted over several files .
> To date ,other than the reference in the parquet homepage there are no other
> references to these feature , not even if it is actually implemented.
> As it currently stands , I believe that for a given row group you cannot have
> some columns in one file and other column group in another file belonging to
> the same schema .
> If these feature was actually implemented it would open the door to faster
> data updates which affect a single column in very wide tables, which is
> typical on big data use cases .
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
