table definition column types is shared

common/proto/table_definition.proto

@@ -27,6 +27,10 @@ service TableDefinition {
   // This provides a tree-like overview of table relationships.
   rpc GetProfileTree(komp_ac.common.Empty) returns (ProfileTreeResponse);
 
+  // Lists every column type a table may declare, along with the SQL type it
+  // maps to. Pure data retrieval - no business logic.
+  rpc ListColumnTypes(komp_ac.common.Empty) returns (ListColumnTypesResponse);
+
   // Fetches all tables with their columns and scripts for a specific profile.
   // Pure data retrieval - no business logic.
   rpc GetProfileDetails(GetProfileDetailsRequest) returns (GetProfileDetailsResponse);
@@ -357,3 +361,19 @@ message DeleteTableResponse {
   // Human-readable summary of what was removed.
   string message = 2;
 }
+
+// Response listing every column type a table may declare.
+message ListColumnTypesResponse {
+  // One declared column type and the SQL type it maps to.
+  message ColumnType {
+    // Logical column type (e.g. "money", "instant"). Passed to the server as
+    // ColumnDefinition.field_type.
+    string name = 1;
+
+    // Underlying PostgreSQL type the logical type maps to (e.g. "NUMERIC").
+    string sql_type = 2;
+  }
+
+  // All declared column types.
+  repeated ColumnType column_types = 1;
+}

common/src/proto/komp_ac.table_definition.rs

@@ -389,6 +389,27 @@ pub struct DeleteTableResponse {
     #[prost(string, tag = "2")]
     pub message: ::prost::alloc::string::String,
 }
+/// Response listing every column type a table may declare.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ListColumnTypesResponse {
+    /// All declared column types.
+    #[prost(message, repeated, tag = "1")]
+    pub column_types: ::prost::alloc::vec::Vec<list_column_types_response::ColumnType>,
+}
+/// Nested message and enum types in `ListColumnTypesResponse`.
+pub mod list_column_types_response {
+    /// One declared column type and the SQL type it maps to.
+    #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+    pub struct ColumnType {
+        /// Logical column type (e.g. "money", "instant"). Passed to the server as
+        /// ColumnDefinition.field_type.
+        #[prost(string, tag = "1")]
+        pub name: ::prost::alloc::string::String,
+        /// Underlying PostgreSQL type the logical type maps to (e.g. "NUMERIC").
+        #[prost(string, tag = "2")]
+        pub sql_type: ::prost::alloc::string::String,
+    }
+}
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
 #[repr(i32)]
 pub enum MoneyRounding {
@@ -636,6 +657,37 @@ pub mod table_definition_client {
                 );
             self.inner.unary(req, path, codec).await
         }
+        /// Lists every column type a table may declare, along with the SQL type it
+        /// maps to. Pure data retrieval - no business logic.
+        pub async fn list_column_types(
+            &mut self,
+            request: impl tonic::IntoRequest<super::super::common::Empty>,
+        ) -> std::result::Result<
+            tonic::Response<super::ListColumnTypesResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic_prost::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.table_definition.TableDefinition/ListColumnTypes",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.table_definition.TableDefinition",
+                        "ListColumnTypes",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
         /// Fetches all tables with their columns and scripts for a specific profile.
         /// Pure data retrieval - no business logic.
         pub async fn get_profile_details(
@@ -840,6 +892,15 @@ pub mod table_definition_server {
             tonic::Response<super::ProfileTreeResponse>,
             tonic::Status,
         >;
+        /// Lists every column type a table may declare, along with the SQL type it
+        /// maps to. Pure data retrieval - no business logic.
+        async fn list_column_types(
+            &self,
+            request: tonic::Request<super::super::common::Empty>,
+        ) -> std::result::Result<
+            tonic::Response<super::ListColumnTypesResponse>,
+            tonic::Status,
+        >;
         /// Fetches all tables with their columns and scripts for a specific profile.
         /// Pure data retrieval - no business logic.
         async fn get_profile_details(
@@ -1155,6 +1216,52 @@ pub mod table_definition_server {
                     };
                     Box::pin(fut)
                 }
+                "/komp_ac.table_definition.TableDefinition/ListColumnTypes" => {
+                    #[allow(non_camel_case_types)]
+                    struct ListColumnTypesSvc<T: TableDefinition>(pub Arc<T>);
+                    impl<
+                        T: TableDefinition,
+                    > tonic::server::UnaryService<super::super::common::Empty>
+                    for ListColumnTypesSvc<T> {
+                        type Response = super::ListColumnTypesResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::super::common::Empty>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as TableDefinition>::list_column_types(&inner, request)
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = ListColumnTypesSvc(inner);
+                        let codec = tonic_prost::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
                 "/komp_ac.table_definition.TableDefinition/GetProfileDetails" => {
                     #[allow(non_camel_case_types)]
                     struct GetProfileDetailsSvc<T: TableDefinition>(pub Arc<T>);