Steven Phillips created DRILL-3381:
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Summary: Add option to distribute partition keys in CTAS
Key: DRILL-3381
URL: https://issues.apache.org/jira/browse/DRILL-3381
Project: Apache Drill
Issue Type: Bug
Reporter: Steven Phillips
The current implementation does not redistribute, which would tend to result in
a lot of extra files. Specifically, the number of files will be larger by a
factor equal to the number of fragments in the final stage of the query. On
even a moderately sized cluster, this number could easily be in the thousands,
so a table with a 100 different partitions would end up with hundreds of
thousands of files.
To allow a workaround for this situation, we should add an option to include an
extra distribution, so that all the rows for any given partition are written
from the same writer.
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