public static Set<SchemaChangeType> extractSchemaChangeType(AlterColumn alterColumn) {
        return extractSchemaChangeType(alterColumn, new HashSet<>());
    }
Extract the schema change types from {@link AlterColumn}

@param alterColumn The alterColumn
@return Set of {@link SchemaChangeType}
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/util/SchemaChangeUtils.java