Feature request: Filter based on failure of some criteria and using multiple filters in the same query

Do you want to request a feature or report a bug?
Feature
What is the current behavior?
It is not possible to use a global _not while filtering to negate a condition, just like described here:
https://hasura.io/docs/1.0/graphql/manual/queries/query-filters.html#filter-based-on-failure-of-some-criteria-not

It would be interesting to have this feature in combination with 'and' or 'or' operators (which are not implemented as well) to create arbitrarily complex boolean expressions involving multiple filtering criteria.

I believe this could help some specific filtering use-cases.

Thank you

Der Issue erwähnt GraphQL-Abfragefilter und verlinkt auf die Filterdokumentation von Hasura, nennt aber keine Repository-Dateien, Tests oder Einstiegspunkte. Beginne damit, die Einstiegspunkte für das Parsen von GraphQL-Filtern und die Abfrageerstellung in graph-node zu finden, und definiere anschließend Tests, die Negation sowie kombinierte and/or-Kriterien einschließlich verschachtelter boolescher Ausdrücke abdecken.