removed snow
should undo refactoring of udfs
Revert "should undo refactoring of udfs"

This reverts commit 4e6983f011b5879861c085fb810bf72177617301.
Revert "removed snow"

This reverts commit 2e0da90b33547b765c493f17c7982ebf9cd14c0f.
Revert "Revert "removed snow""

This reverts commit a75ebf545d5074809b8a1848f39fe5e13f248ac7.
Revert "Revert "should undo refactoring of udfs""

This reverts commit 1ab1042bbed04403451b8251216b9a32cf83413f.
successful udf refactoring