From 989a6b082884451269bee6995731d9e133a89e98 Mon Sep 17 00:00:00 2001
From: Jiatao Tao <245915794@qq.com>
Date: Mon, 19 Aug 2019 14:20:28 +0800
Subject: [PATCH] #44, cast varchar/char as string when no precision.

---
 .../scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
index c6d21058e6f1e..a8455d30995bd 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
@@ -1757,7 +1757,9 @@ class AstBuilder(conf: SQLConf) extends SqlBaseBaseVisitor[AnyRef] with Logging
       case ("date", Nil) => DateType
       case ("timestamp", Nil) => TimestampType
       case ("string", Nil) => StringType
+      case ("char", Nil) => StringType
       case ("char", length :: Nil) => CharType(length.getText.toInt)
+      case ("varchar", Nil) => StringType
       case ("varchar", length :: Nil) => VarcharType(length.getText.toInt)
       case ("binary", Nil) => BinaryType
       case ("decimal", Nil) => DecimalType.USER_DEFAULT