Hi,

i'm currently thinking if i could write a has_child filter differently to 
performe a faster search.

I want all products (parents) with the term "printer" and which have set 
the field "Client3.Type" to "K". 

Currently i'm executing this query. But i think this way elasticsearch is 
first searching for the query and then filtering the results. I would 
preffere first to filter and then query the matching documents. 

{
   
   - index: "columns",
   - type: "mainarticle",
   - body: 
   {
      - query: 
      {
         - has_child: 
         {
            - type: "product",
            - query: 
            {
               - filtered: 
               {
                  - query: 
                  {
                     - multi_match: 
                     {
                        - query: "printer",
                        - fields: 
                        [
                           - "Title",
                           - "Description"
                           ]
                        }
                     },
                  - filter: 
                  {
                     - and: 
                     [
                        - 
                        {
                           - term: 
                           {
                              - Client3.Type: "K"
                              }
                           }
                        ]
                     }
                  }
               }
            }
         }
      }
   
}


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