Andrew Lamb created ARROW-10165:
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Summary: [Rust] [DataFusion] Add DictionaryArray coercion support
Key: ARROW-10165
URL: https://issues.apache.org/jira/browse/ARROW-10165
Project: Apache Arrow
Issue Type: Sub-task
Reporter: Andrew Lamb
Assignee: Andrew Lamb
There is code in the datafusion physical planner that coerces arguments to
compatible types for some expressions (e.g. for equals:
https://github.com/apache/arrow/blob/master/rust/datafusion/src/physical_plan/expressions.rs#L1153)
This code needs to be modified to understand dictionary types (so, for example
we can express a predicate like {{col1 = "foo"}}, where {{col1}} is a
DictionaryArray.
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