Minor change.

Author: sarutak

sql/core/src/test/scala/org/apache/spark/sql/ExplainSuite.scala

@@ -230,11 +230,11 @@ class ExplainSuite extends ExplainSuiteHelper with DisableAdaptiveExecutionSuite
 
   test("SPARK-33853: explain codegen - check presence of subquery") {
     withSQLConf(SQLConf.WHOLESTAGE_CODEGEN_ENABLED.key -> "true") {
-      withTable("df1") {
+      withTable("df") {
         val df1 = spark.range(1, 100)
-        df1.createTempView("df1")
+        df1.createTempView("df")
 
-        val sqlText = "EXPLAIN CODEGEN SELECT (SELECT min(id) FROM df1)"
+        val sqlText = "EXPLAIN CODEGEN SELECT (SELECT min(id) FROM df)"
         val expectedText = "Found 3 WholeStageCodegen subtrees."
 
         withNormalizedExplain(sqlText) { normalizedOutput =>