[GitHub] [spark] gengliangwang commented on a change in pull request #27495: [SPARK-28880][SQL] Support ANSI nested bracketed comments

[GitBox <gi...@apache.org>]

gengliangwang commented on a change in pull request #27495: [SPARK-28880][SQL] Support ANSI nested bracketed comments
URL: https://github.com/apache/spark/pull/27495#discussion_r378496367
 
 

 ##########
 File path: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/PlanParserSuite.scala
 ##########
 @@ -55,6 +55,65 @@ class PlanParserSuite extends AnalysisTest {
     With(plan, ctes)
   }
 
+  test("single comment") {
+    val plan = table("a").select(star())
+    assertEqual("-- single comment\nSELECT * FROM a", plan)
+  }
+
+  test("bracketed comment case one") {
+    val plan = table("a").select(star())
+    assertEqual(
+      """
+        |/* This is an example of SQL which should not execute:
+        | * select 'multi-line';
+        | */
+        |SELECT * FROM a
+      """.stripMargin, plan)
+  }
+
+  test("bracketed comment case two") {
+    val plan = table("a").select(star())
+    assertEqual(
+      """
+        |/*
+        |SELECT 'trailing' as x1; -- inside block comment
+        |*/
+        |SELECT * FROM a
+      """.stripMargin, plan)
+  }
+
+  test("nexted bracketed comment case one") {
 
 Review comment:
   nit: `nexted` => `nested`

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