text: CREATE
  OR REPLACE VIEW hdb_catalog.hdb_function_info_agg AS (
      SELECT
          function_name,
          function_schema,
          row_to_json (
              (
                  SELECT
                      e
                  FROM
                      (
                          SELECT
                              description,
                              has_variadic,
                              function_type,
                              return_type_schema,
                              return_type_name,
                              return_type_type,
                              returns_set,
                              input_arg_types,
                              input_arg_names,
                              default_args,
                              exists(
                                  SELECT
                                      1
                                  FROM
                                      information_schema.tables
                                  WHERE
                                      table_schema = return_type_schema
                                      AND table_name = return_type_name
                              )
                              OR exists(
                                  SELECT
                                      1
                                  FROM
                                      pg_matviews
                                  WHERE
                                      schemaname = return_type_schema
                                      AND matviewname = return_type_name
                              ) AS returns_table
                      ) AS e
              )
          ) AS "function_info"
      FROM
          hdb_catalog.hdb_function_agg
  );
  