ElasticGraph Query API: Filter Negation
      Try these example queries by visiting the GraphiQL UI after booting locally.
      
    
    
      
      
      
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  $ curl -s https://block.github.io/elasticgraph/dc.yml | docker compose -f - up --pull always
ElasticGraph supports a negation predicate:
- not
- Matches records where the provided sub-filter evaluates to false.
This works just like a NOToperator in SQL.When nullor an empty object is passed, matches no documents.
One of the more common use cases is to filter to non-null values:
      
      
      
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  query FindNamedVenues {
  venues(filter: {
    name: {not: {equalToAnyOf: [null]}}
  }) {
    nodes {
      name # will be non-null on all returned nodes
      capacity
    }
  }
}
not is available at any level of a filter. These are equivalent:
- name: {not: {equalToAnyOf: [null]}}
- not: {name: {equalToAnyOf: [null]}}