[GitHub] [arrow-rs] avantgardnerio commented on a diff in pull request #3207: FlightSQL Client & integration test

[GitBox <gi...@apache.org>]

avantgardnerio commented on code in PR #3207:
URL: https://github.com/apache/arrow-rs/pull/3207#discussion_r1033720197


##########
arrow-flight/src/sql/client.rs:
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@@ -0,0 +1,561 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+use std::collections::HashMap;
+use std::sync::Arc;
+use std::time::Duration;
+
+use crate::flight_service_client::FlightServiceClient;
+use crate::sql::server::{CLOSE_PREPARED_STATEMENT, CREATE_PREPARED_STATEMENT};
+use crate::sql::{
+    ActionClosePreparedStatementRequest, ActionCreatePreparedStatementRequest,
+    ActionCreatePreparedStatementResult, CommandGetCatalogs, CommandGetCrossReference,
+    CommandGetDbSchemas, CommandGetExportedKeys, CommandGetImportedKeys,
+    CommandGetPrimaryKeys, CommandGetSqlInfo, CommandGetTableTypes, CommandGetTables,
+    CommandPreparedStatementQuery, CommandStatementQuery, CommandStatementUpdate,
+    DoPutUpdateResult, ProstAnyExt, ProstMessageExt, SqlInfo,
+};
+use crate::{
+    Action, FlightData, FlightDescriptor, FlightInfo, HandshakeRequest,
+    HandshakeResponse, IpcMessage, Ticket,
+};
+use arrow_array::RecordBatch;
+use arrow_buffer::Buffer;
+use arrow_ipc::convert::fb_to_schema;
+use arrow_ipc::reader::read_record_batch;
+use arrow_ipc::{root_as_message, size_prefixed_root_as_message, MessageHeader};
+use arrow_schema::{ArrowError, Schema, SchemaRef};
+use futures::{stream, TryStreamExt};
+use prost::Message;
+use tokio::sync::{Mutex, MutexGuard};
+use tonic::transport::{Channel, Endpoint};
+use tonic::Streaming;
+
+/// A FlightSQLServiceClient is an endpoint for retrieving or storing Arrow data
+/// by FlightSQL protocol.
+#[derive(Debug, Clone)]
+pub struct FlightSqlServiceClient {
+    token: Option<String>,
+    flight_client: Arc<Mutex<FlightServiceClient<Channel>>>,
+}
+
+impl FlightSqlServiceClient {
+    pub async fn new_with_ep(host: &str, port: u16) -> Result<Self, ArrowError> {
+        let addr = format!("http://{}:{}", host, port);

Review Comment:
   Sadly, no.



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