Steve Carlin created IMPALA-14903:
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Summary: Calcite planner: Simplify String RelDataType
Key: IMPALA-14903
URL: https://issues.apache.org/jira/browse/IMPALA-14903
Project: IMPALA
Issue Type: Sub-task
Reporter: Steve Carlin
By default, Calcite always sets string literals to type "char" whereas Impala
needs string literals to be type "string".
The current code committed works around this by creating a cast around the
column. This complicated the code. For example, A Values RelNode cannot have a
cast, so a Project RelNode had to be created on top of a Values RelNode to
handle the cast.
This code should be simplified
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