benbellick commented on code in PR #18921:
URL: https://github.com/apache/datafusion/pull/18921#discussion_r2896415393
##########
datafusion/substrait/src/logical_plan/producer/expr/mod.rs:
##########
@@ -152,6 +152,9 @@ pub fn to_substrait_rex(
not_impl_err!("Cannot convert {expr:?} to Substrait")
}
Expr::Unnest(expr) => not_impl_err!("Cannot convert {expr:?} to
Substrait"),
+ Expr::LambdaFunction(expr) => producer.handle_lambda_function(expr,
schema),
+ Expr::Lambda(expr) => not_impl_err!("Cannot convert {expr:?} to
Substrait"), // not yet implemented in substrait-rs
+ Expr::LambdaVariable(expr) => not_impl_err!("Cannot convert {expr:?}
to Substrait"), // not yet implemented in substrait-rs
Review Comment:
I will address this comment more fully later. The protos for lambdas do
exist in `substrait-rs` but haven't been released yet. I am looking into how to
do that release right now.
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