update release test script

dev/release/00-prepare-test.rb

@@ -275,8 +275,10 @@ def test_version_pre_tag
                         "+version = \"#{@release_version}\""],
                        ["-arrow = { path = \"../arrow\", version = \"#{@snapshot_version}\" }",
                         "-parquet = { path = \"../parquet\", version = \"#{@snapshot_version}\" }",
+                        "-arrow-flight = { path = \"../arrow-flight\", version = \"#{@snapshot_version}\" }",
                         "+arrow = { path = \"../arrow\", version = \"#{@release_version}\" }",
-                        "+parquet = { path = \"../parquet\", version = \"#{@release_version}\" }"]
+                        "+parquet = { path = \"../parquet\", version = \"#{@release_version}\" }",
+                        "+arrow-flight = { path = \"../arrow-flight\", version = \"#{@release_version}\" }"]
                      ],
                    },
                    {

rust/datafusion/examples/README.md

@@ -0,0 +1,28 @@
+<!---
+  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.
+-->
+
+# DataFusion Examples
+
+## Single Process
+
+The examples `csv_sql.rs` and `parquet_sql.rs` demonstrate building a query plan from a SQL statement and then executing the query plan against local CSV and Parquet files, respectively.
+
+## Distributed
+
+The `flight-client.rs` and `flight-server.rs` examples demonstrate how to run DataFusion as a standalone process and execute SQL queries from a client using the Flight protocol.