In the following code, I’m trying to add a plugin to the query_parser (QueryParser). The schema is already indexed and saved before the project started. However, I have an issue where the DerivationPlugin does not apply to the query_parser when using self._schema.

In the following code, I’m trying to add a plugin to the query_parser (QueryParser). The schema is already indexed and saved before the project started. However, I have an issue where the DerivationPlugin does not apply to the query_parser when using self._schema.