[HUDI-3507] Support export command based on Call Produce Command (#5901)

hudi-spark-datasource/hudi-spark/src/test/scala/org/apache/spark/sql/hudi/procedure/TestExportInstantsProcedure.scala

@@ -0,0 +1,52 @@
+/*
+ * 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.
+ */
+
+package org.apache.spark.sql.hudi.procedure
+
+import org.apache.spark.sql.hudi.HoodieSparkSqlTestBase
+
+class TestExportInstantsProcedure extends HoodieSparkSqlTestBase {
+
+  test("Test Call export_instants Procedure") {
+    withTempDir { tmp =>
+      val tableName = generateTableName
+      // create table
+      spark.sql(
+        s"""
+           |create table $tableName (
+           |  id int,
+           |  name string,
+           |  price double,
+           |  ts long
+           |) using hudi
+           | location '${tmp.getCanonicalPath}/$tableName'
+           | tblproperties (
+           |  primaryKey = 'id',
+           |  preCombineField = 'ts'
+           | )
+       """.stripMargin)
+
+      // insert data to table
+      spark.sql(s"insert into $tableName select 1, 'a1', 10, 1000")
+
+      val result = spark.sql(s"""call export_instants(table => '$tableName', localFolder => '${tmp.getCanonicalPath}/$tableName')""").limit(1).collect()
+      assertResult(1) {
+        result.length
+      }
+    }
+  }
+}