Github user rdblue commented on a diff in the pull request:
https://github.com/apache/spark/pull/22043#discussion_r209016955
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/DataSourceV2AnalysisSuite.scala
---
@@ -0,0 +1,411 @@
+/*
+ * 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.catalyst.analysis
+
+import java.util.Locale
+
+import org.apache.spark.sql.catalyst.expressions.{Alias,
AttributeReference, Cast, UpCast}
+import org.apache.spark.sql.catalyst.plans.logical.{AppendData, LeafNode,
LogicalPlan, Project}
+import org.apache.spark.sql.types.{DoubleType, FloatType, StructField,
StructType}
+
+case class TestRelation(output: Seq[AttributeReference]) extends LeafNode
with NamedRelation {
+ override def name: String = "table-name"
+}
+
+class DataSourceV2AnalysisSuite extends AnalysisTest {
+ val table = TestRelation(StructType(Seq(
+ StructField("x", FloatType),
+ StructField("y", FloatType))).toAttributes)
--- End diff --
Symbols are rarely used in Scala, so I think it is better to use the
StructType and convert. It matches what users do more closely.
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