Jason Altekruse created DRILL-1262:
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Summary: Promotion of vectors from standard to embedded vectors
Key: DRILL-1262
URL: https://issues.apache.org/jira/browse/DRILL-1262
Project: Apache Drill
Issue Type: Sub-task
Reporter: Jason Altekruse
For cases where the schema changes frequently, such as in the json reader, we
will want to allow the operators to assume regular vectors can be used until we
hit a schema change, at which time the vector should be promoted to an Embedded
Vector. This should be applied after checking to see if the types are
compatible for implicit casting, to avoid full promotion to an Embedded vector
if it is not necessary.
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