diff --git a/src/main/scala/com/snowflake/snowpark/functions.scala b/src/main/scala/com/snowflake/snowpark/functions.scala
index dfc3a155..f3c88753 100644
--- a/src/main/scala/com/snowflake/snowpark/functions.scala
+++ b/src/main/scala/com/snowflake/snowpark/functions.scala
@@ -3270,7 +3270,7 @@ object functions {
    * when the conversion can not be performed.
    * The column argument must be a string column in Snowflake.
    */
-  def try_cast(e : Column,targetType: DataType): Column = {
+  def try_cast(e : Column,targetType: String): Column = {
     try_cast(e,targetType())
   }
   /**
@@ -3286,7 +3286,7 @@ object functions {
    * @return Column object.
    */
   def date_sub(start: Column, days: Int): Column = {
-    dateadd(start, lit(days * -1), try_cast(start,DateType()))
+     dateadd("DAY", lit(days * -1), sqlExpr(s"try_cast(${start.getName.get} :: STRING as DATE)"))
   }
   /**
    * Invokes a built-in snowflake function with the specified name and arguments.