First pass at quick schema representation

crates/configuration/src/introspection.rs

@@ -1,5 +1,6 @@
 //! Configuration and state for our connector.
 use serde::Deserialize;
+use ndc_models::TypeRepresentation;
 
 #[derive(Deserialize, Debug)]
 pub struct IntrospectStoredProcedureArgument {
@@ -64,3 +65,30 @@ pub struct IntrospectionForeignKeyColumn {
 pub struct IntrospectionSchema {
     pub name: String,
 }
+
+pub fn map_type_representation(sql_type: &str) -> Option<TypeRepresentation> {
+    match sql_type.to_lowercase().as_str() {
+        "bigint" => Some(TypeRepresentation::Int64),
+        "bit" => Some(TypeRepresentation::Boolean),
+        "decimal" | "numeric" | "money" | "smallmoney" => Some(TypeRepresentation::BigDecimal),
+        "int" => Some(TypeRepresentation::Int32),
+        "smallint" => Some(TypeRepresentation::Int16),
+        "tinyint" => Some(TypeRepresentation::Int16),
+        "float" => Some(TypeRepresentation::Float64),
+        "real" => Some(TypeRepresentation::Float32),
+        "date" => Some(TypeRepresentation::Date),
+        "datetime" | "datetime2" | "smalldatetime" | "timestamp" => Some(TypeRepresentation::Timestamp),
+        "datetimeoffset" => Some(TypeRepresentation::TimestampTZ),
+        "time" => Some(TypeRepresentation::String),
+        "char" | "varchar" | "text" | "nchar" | "nvarchar" | "ntext" => Some(TypeRepresentation::String),
+        "binary" | "varbinary" | "image" => Some(TypeRepresentation::String),
+        "uniqueidentifier" => Some(TypeRepresentation::UUID),
+        "xml" => Some(TypeRepresentation::String),
+        "geometry" => Some(TypeRepresentation::Geometry),
+        "geography" => Some(TypeRepresentation::Geography),
+        "json" => Some(TypeRepresentation::JSON),
+        // TODO: Add support for hierarchyid and sql_variant
+        // "hierarchyid" | "sql_variant" => XXX,
+        _ => None,
+    }
+}

crates/ndc-sqlserver/src/schema.rs

@@ -12,9 +12,8 @@ use ndc_sdk::models::ObjectTypeName;
 use ndc_sdk::models::ProcedureName;
 use ndc_sdk::models::ScalarTypeName;
 use ndc_sdk::models::TypeRepresentation;
-use query_engine_metadata::metadata;
-
 use ndc_sqlserver_configuration as configuration;
+use query_engine_metadata::metadata;
 use query_engine_metadata::metadata::stored_procedures::{
     StoredProcedureArgumentInfo, StoredProcedures,
 };
@@ -308,8 +307,9 @@ pub fn get_schema(
                 (
                     scalar_type.0.clone().into(),
                     models::ScalarType {
-                        // TODO(PY): Add representation for beta
-                        representation: None,
+                        representation: configuration::introspection::map_type_representation(
+                            scalar_type.0.as_str(),
+                        ),
                         aggregate_functions: metadata
                             .aggregate_functions
                             .0