[GitHub] [spark] samsetegne commented on a change in pull request #27567: [SPARK-30822][SQL] Remove semicolon at the end of a sql query

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samsetegne commented on a change in pull request #27567: [SPARK-30822][SQL] Remove semicolon at the end of a sql query
URL: https://github.com/apache/spark/pull/27567#discussion_r384660935
 
 

 ##########
 File path: sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala
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 @@ -45,7 +45,10 @@ class SparkSqlParser(conf: SQLConf) extends AbstractSqlParser(conf) {
   private val substitutor = new VariableSubstitution(conf)
 
   protected override def parse[T](command: String)(toResult: SqlBaseParser => T): T = {
-    super.parse(substitutor.substitute(command))(toResult)
+    val trimmed_command = if (command.trim.endsWith(";")) {
 
 Review comment:
   Yeah that would actually be much cleaner. What do you think about adding the quantifier as `(';')*?` to allow for any number of semicolons, i.e.
   ```scala
   sql("select name from people;;;;;;")
   ```
   It goes beyond handling the accidental additional semicolon but I don't see why any number of semicolons at the end would make a query ambiguous.

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