Method extension_exists

django/contrib/postgres/operations.py:58–64

(self, schema_editor, extension)

        get_citext_oids.cache_clear()

    def extension_exists(self, schema_editor, extension):
        with schema_editor.connection.cursor() as cursor:
            cursor.execute(
                "SELECT 1 FROM pg_extension WHERE extname = %s",
                [extension],
            )
            return bool(cursor.fetchone())

    def describe(self):
        return "Creates extension %s" % self.name