Andy Grove created ARROW-4164:
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Summary: [Rust] ArrayBuilder should not have associated types
Key: ARROW-4164
URL: https://issues.apache.org/jira/browse/ARROW-4164
Project: Apache Arrow
Issue Type: Improvement
Components: Rust
Reporter: Andy Grove
When dealing with arrays at runtime it is possible to represent them with
ArrayRef, allowing for things like Vec<ArrayRef> and then downcasting arrays as
needed based on schema meta data.
I am now trying to do the same thing with ArrayBuilder but because this trait
has an associated type, I cannot create a Vec<ArrayBuilder>. This makes it
difficult in some cases to dynamic build arrays.
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