From 8231f95dbe3306781515c2d432380d6d636467f5 Mon Sep 17 00:00:00 2001
From: Andrew Lamb <andrew@nerdnetworks.org>
Date: Thu, 9 Sep 2021 14:04:55 -0400
Subject: [PATCH] Add minimal ballista support

---
 ballista/rust/core/src/serde/logical_plan/to_proto.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ballista/rust/core/src/serde/logical_plan/to_proto.rs b/ballista/rust/core/src/serde/logical_plan/to_proto.rs
index aa7a973dd3402..e2d6f51755871 100644
--- a/ballista/rust/core/src/serde/logical_plan/to_proto.rs
+++ b/ballista/rust/core/src/serde/logical_plan/to_proto.rs
@@ -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")
+            }
         }
     }
 }
@@ -537,6 +540,7 @@ impl TryFrom<&DataType> for protobuf::scalar_type::Datatype {
             | DataType::Struct(_)
             | DataType::Union(_)
             | DataType::Dictionary(_, _)
+            | DataType::Map(_, _)
             | DataType::Decimal(_, _) => {
                 return Err(proto_error(format!(
                     "Error converting to Datatype to scalar type, {:?} is invalid as a datafusion scalar.",