Paul Rogers created DRILL-7610:
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Summary: Allow user to specify table schema in Metastore
Key: DRILL-7610
URL: https://issues.apache.org/jira/browse/DRILL-7610
Project: Apache Drill
Issue Type: Improvement
Affects Versions: 1.17.0
Reporter: Paul Rogers
The Drill Metastore will infer the schema of a table while gathering stats.
Unfortunately, this creates a chicken-and-egg problem. Some files need the
Metastore because the schema is ambiguous. Such data won't even scan correctly
without such information. Classic JSON example:
{code:json}
{a: 10} {a: 10.1}
{code}
In these cases, the user should first define the table schema, then run the
{{ANALYZE TABLE}} commands. In such cases, Drill should not attempt to change
the type information (since the actual data is ambiguous.)
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