Method _can_create_sequence

lib/sqlalchemy/sql/ddl.py:944–955

(self, sequence)

        )

    def _can_create_sequence(self, sequence):
        effective_schema = self.connection.schema_for_object(sequence)

        return self.dialect.supports_sequences and (
            (not self.dialect.sequences_optional or not sequence.optional)
            and (
                not self.checkfirst
                or not self.dialect.has_sequence(
                    self.connection, sequence.name, schema=effective_schema
                )
            )
        )

    def visit_metadata(self, metadata):
        if self.tables is not None: