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Posted to dev@drill.apache.org by "Jason Altekruse (JIRA)" <ji...@apache.org> on 2014/08/06 00:51:14 UTC

[jira] [Created] (DRILL-1257) Handle schema mutations within a batch

Jason Altekruse created DRILL-1257:
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             Summary: Handle schema mutations within a batch
                 Key: DRILL-1257
                 URL: https://issues.apache.org/jira/browse/DRILL-1257
             Project: Apache Drill
          Issue Type: New Feature
            Reporter: Jason Altekruse
             Fix For: Future


Drill is intended to provide flexibility for a wide variety of querying use cases, including those against file formats with changing schema such as JSON. Currently Drill does not have an efficient means of representing these cases, as a constant schema is tied to a record batch, which is best used to represent a few hundred or thousand records. We have have also not designed all of the operators and functions to gracefully handle changes in schema throughout the course of a query.



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