Method compile

lib/sqlalchemy/sql/type_api.py:1132–1147

Produce a string-compiled form of this :class:`.TypeEngine`. When called with no arguments, uses a "default" dialect to produce a string result. :param dialect: a :class:`.Dialect` instance.

(self, dialect: Optional[Dialect] = None)

        return self._type_affinity is other._type_affinity

    def compile(self, dialect: Optional[Dialect] = None) -> str:
        """Produce a string-compiled form of this :class:`.TypeEngine`.

        When called with no arguments, uses a "default" dialect
        to produce a string result.

        :param dialect: a :class:`.Dialect` instance.

        """
        # arg, return value is inconsistent with
        # ClauseElement.compile()....this is a mistake.

        if dialect is None:
            dialect = self._default_dialect()

        return dialect.type_compiler_instance.process(self)

    @util.preload_module("sqlalchemy.engine.default")
    def _default_dialect(self) -> Dialect: