Github user mgaido91 commented on a diff in the pull request:
https://github.com/apache/spark/pull/21815#discussion_r203669375
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/FileSourceScanExecSuite.scala
---
@@ -0,0 +1,36 @@
+/*
+ * 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.execution
+
+import org.apache.spark.sql.test.SharedSQLContext
+
+class FileSourceScanExecSuite extends SharedSQLContext {
+ test("FileSourceScanExec should be canonicalizable in executor side") {
+ withTempPath { path =>
+ spark.range(1).toDF().write.parquet(path.getAbsolutePath)
+ val df = spark.read.parquet(path.getAbsolutePath)
+ val fileSourceScanExec =
+
df.queryExecution.sparkPlan.find(_.isInstanceOf[FileSourceScanExec]).get
+ try {
+ spark.range(1).foreach(_ => fileSourceScanExec.canonicalized)
--- End diff --
not sure whether it is feasible (maybe in a followup?), but it would be
great if we can test the canonicalization of all the Exec nodes in order to
prevent such issue in the future... what do you think?
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