fixing typos

Author: sfc-gh-batur

src/snowflake/snowpark/functions.py

@@ -3430,7 +3430,7 @@ def charindex(
     s = _to_col_if_str(source_expr, "charindex")
     # Build AST here to prevent `position` from being recorded as a literal instead of int/None.
     ast = (
-        build_function_expr("char_index", [t, s, position], ignore_null_args=True)
+        build_function_expr("charindex", [t, s, position], ignore_null_args=True)
         if _emit_ast
         else None
     )

src/snowflake/snowpark/mock/_udtf.py

@@ -78,7 +78,7 @@ def _do_register_udtf(
                 ast = with_src_position(stmt.expr.udtf, stmt)
                 ast_id = stmt.var_id.bitfield1
 
-            object_name = kwargs["_registrated_object_name"]
+            object_name = kwargs["_registered_object_name"]
             udtf = MockUserDefinedTableFunction(
                 handler,
                 output_schema,