diff --git a/contrib/try_convert/try_convert.c b/contrib/try_convert/try_convert.c
index 5268a65747..4d922594f9 100644
--- a/contrib/try_convert/try_convert.c
+++ b/contrib/try_convert/try_convert.c
@@ -57,7 +57,7 @@ try_convert_from_pg_cast(Datum value, Oid sourceTypeId, Oid targetTypeId, bool *
 	{
         ReleaseSysCache(tuple);
 
-        is_null = true;
+        *is_null = true;
         FlushErrorState();  /// TODO replace
 	}
 	PG_END_TRY();
@@ -101,7 +101,7 @@ try_convert_via_io(Datum value, Oid sourceTypeId, Oid targetTypeId, bool *is_nul
     }
 	PG_CATCH();
 	{
-        is_null = true;
+        *is_null = true;
 
         FlushErrorState(); /// TODO replace
 	}
@@ -129,21 +129,10 @@ try_convert(PG_FUNCTION_ARGS)
 	if (sourceTypeId == targetTypeId)
 		return fcinfo->arg[0];
 
-    Oid			infunc;
-    bool		typisvarlena;
-
-    getTypeInputInfo(targetTypeId, &infunc, &typisvarlena);
     Datum res = 0;
 
     bool is_null = fcinfo->isnull;
 
-    res = try_convert_from_pg_cast(fcinfo->arg[0], sourceTypeId, targetTypeId, &is_null);
-
-    if (!is_null)
-        return res;
-
-    is_null = fcinfo->isnull;
-
     if (TypeCategory(sourceTypeId) == TYPCATEGORY_STRING 
      || TypeCategory(targetTypeId) == TYPCATEGORY_STRING)
         res = try_convert_via_io(fcinfo->arg[0], sourceTypeId, targetTypeId, &is_null);
diff --git a/src/backend/utils/misc/try_cast.c b/src/backend/utils/misc/try_cast.c
index 002e652051..94784ea4be 100644
--- a/src/backend/utils/misc/try_cast.c
+++ b/src/backend/utils/misc/try_cast.c
@@ -27,7 +27,7 @@ try_cast(PG_FUNCTION_ARGS)
 	{
 		fcinfo->isnull = true;
 
-		FlushErrorState();
+		FlushErrorState();  /// TODO replace
 	}
 	PG_END_TRY();