Mongo query on cursor (pymongo)










0















Suppose that col is a collection. I want to perform a query like this one:



filter1 = col.find("field1": valueX, "field2": valueY)


Now, I don't really need filter1, I need



filter2 = col.find("field1": valueX, "field2": valueY, "field3": valueZ)
filter3 = col.find("field1": valueX, "field2": valueY, "field4": valueW)


This of course search twice the conditions "field1": valueX, "field2": valueY. I want to do something like



filter2 = filter1.find("field3": valueZ)
filter3 = filter1.find("field4": valueW)


in order to optimize the query. How can I achieve this?










share|improve this question


























    0















    Suppose that col is a collection. I want to perform a query like this one:



    filter1 = col.find("field1": valueX, "field2": valueY)


    Now, I don't really need filter1, I need



    filter2 = col.find("field1": valueX, "field2": valueY, "field3": valueZ)
    filter3 = col.find("field1": valueX, "field2": valueY, "field4": valueW)


    This of course search twice the conditions "field1": valueX, "field2": valueY. I want to do something like



    filter2 = filter1.find("field3": valueZ)
    filter3 = filter1.find("field4": valueW)


    in order to optimize the query. How can I achieve this?










    share|improve this question
























      0












      0








      0








      Suppose that col is a collection. I want to perform a query like this one:



      filter1 = col.find("field1": valueX, "field2": valueY)


      Now, I don't really need filter1, I need



      filter2 = col.find("field1": valueX, "field2": valueY, "field3": valueZ)
      filter3 = col.find("field1": valueX, "field2": valueY, "field4": valueW)


      This of course search twice the conditions "field1": valueX, "field2": valueY. I want to do something like



      filter2 = filter1.find("field3": valueZ)
      filter3 = filter1.find("field4": valueW)


      in order to optimize the query. How can I achieve this?










      share|improve this question














      Suppose that col is a collection. I want to perform a query like this one:



      filter1 = col.find("field1": valueX, "field2": valueY)


      Now, I don't really need filter1, I need



      filter2 = col.find("field1": valueX, "field2": valueY, "field3": valueZ)
      filter3 = col.find("field1": valueX, "field2": valueY, "field4": valueW)


      This of course search twice the conditions "field1": valueX, "field2": valueY. I want to do something like



      filter2 = filter1.find("field3": valueZ)
      filter3 = filter1.find("field4": valueW)


      in order to optimize the query. How can I achieve this?







      pymongo






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 14 '18 at 1:35









      Vladimir VargasVladimir Vargas

      434620




      434620






















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