[SPARK-16084][SQL] Minor comments update for "DESCRIBE" table

## What changes were proposed in this pull request?

1. FORMATTED is actually supported, but partition is not supported;
2. Remove parenthesis as it is not necessary just like anywhere else.

## How was this patch tested?

Minor issue. I do not think it needs a test case!

Author: bomeng <bmeng@us.ibm.com>

Closes #13791 from bomeng/SPARK-16084.

1 files changed, 3 insertions, 3 deletions

diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala
index 154c25adfa..2ae8380644 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala
@@ -279,15 +279,15 @@ class SparkSqlAstBuilder(conf: SQLConf) extends AstBuilder {
    * Create a [[DescribeTableCommand]] logical plan.
    */
   override def visitDescribeTable(ctx: DescribeTableContext): LogicalPlan = withOrigin(ctx) {
-    // FORMATTED and columns are not supported. Return null and let the parser decide what to do
-    // with this (create an exception or pass it on to a different system).
+    // Describe partition and column are not supported yet. Return null and let the parser decide
+    // what to do with this (create an exception or pass it on to a different system).
     if (ctx.describeColName != null || ctx.partitionSpec != null) {
       null
     } else {
       DescribeTableCommand(
         visitTableIdentifier(ctx.tableIdentifier),
         ctx.EXTENDED != null,
-        ctx.FORMATTED() != null)
+        ctx.FORMATTED != null)
     }
   }