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https://issues.apache.org/jira/browse/DRILL-1333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14156816#comment-14156816
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Jason Altekruse commented on DRILL-1333:
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Start of a design doc
https://docs.google.com/document/d/1hgOMH8SIHx5X96KGlQzbtRa1RTSl9Gdz9Yo8SUJqBC4/edit
> Create a flatten operation
> --------------------------
>
> Key: DRILL-1333
> URL: https://issues.apache.org/jira/browse/DRILL-1333
> Project: Apache Drill
> Issue Type: Sub-task
> Components: Storage - JSON
> Reporter: Jason Altekruse
> Fix For: Future
>
>
> JSON documents often include lists that would be nice to flatten out into
> records, one row for each element in the array. This should also handle the
> case where there is other data at the level above the list, that applies to
> all elements, to be copied into each flattened record.
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