alamb commented on a change in pull request #984:
URL: https://github.com/apache/arrow-datafusion/pull/984#discussion_r705580786
##########
File path: ballista/rust/core/src/serde/logical_plan/to_proto.rs
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@@ -407,6 +407,9 @@ impl From<&DataType> for
protobuf::arrow_type::ArrowTypeEnum {
fractional: *fractional as u64,
})
}
+ DataType::Map(_, _) => {
+ unimplemented!("Ballista does not yet support Map data type")
Review comment:
Needed due to https://github.com/apache/arrow-rs/pull/491 -- I am not
enough of an expert to implement protobuf serialization in Ballista for a new
`DataType` at this time but I suspect it is not very hard
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