text: from redata.backends.base import DB
  from redata.backends.sql_alchemy import SqlAlchemy
  
  class Postgres(SqlAlchemy):
      def __init__(self, name, db):
          super().__init__(name, db)
      
      @staticmethod
      def numeric_types():
          return [
              'smallint',
              'integer',
              'bigint',
              'decimal',
              'numeric',
              'real',
              'double precision',
              'enum'
          ]
  
      @staticmethod
      def character_types():
          return [
              'character varying',
              'varchar',
              'character',
              'char',
              'text'
          ]
  
      @staticmethod
      def datetime_types():
          return [
              'timestamp without time zone',
              'timestamp with time zone',
              'date',
          ]