Method has_table

lib/sqlalchemy/engine/interfaces.py:1844–1883

For internal dialect use, check the existence of a particular table or view in the database. Given a :class:`_engine.Connection` object, a string table_name and optional schema name, return True if the given table exists in the database, False otherwise. Thi

(
        self,
        connection: Connection,
        table_name: str,
        schema: Optional[str] = None,
        **kw: Any,
    )

        raise NotImplementedError()

    def has_table(
        self,
        connection: Connection,
        table_name: str,
        schema: Optional[str] = None,
        **kw: Any,
    ) -> bool:
        """For internal dialect use, check the existence of a particular table
        or view in the database.

        Given a :class:`_engine.Connection` object, a string table_name and
        optional schema name, return True if the given table exists in the
        database, False otherwise.

        This method serves as the underlying implementation of the
        public facing :meth:`.Inspector.has_table` method, and is also used
        internally to implement the "checkfirst" behavior for methods like
        :meth:`_schema.Table.create` and :meth:`_schema.MetaData.create_all`.

        .. note:: This method is used internally by SQLAlchemy, and is
           published so that third-party dialects may provide an
           implementation. It is **not** the public API for checking for table
           presence. Please use the :meth:`.Inspector.has_table` method.

        .. versionchanged:: 2.0:: :meth:`_engine.Dialect.has_table` now
           formally supports checking for additional table-like objects:

           * any type of views (plain or materialized)
           * temporary tables of any kind

           Previously, these two checks were not formally specified and
           different dialects would vary in their behavior.   The dialect
           testing suite now includes tests for all of these object types,
           and dialects to the degree that the backing database supports views
           or temporary tables should seek to support locating these objects
           for full compliance.

        """

        raise NotImplementedError()

    def has_index(
        self,