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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