Regarding upsert query


(Aayush Anand) #1

I need some help in upsert query. I have to append new values to arrays of
already existing key. I know how to do this part.
But problem is -

  1. Values in the array must be unique. So new value will be appended only
    if that value was not present in the array earlier.
  2. Also, I need way to delete specific value of the array. Plz help in this.

(system) #2

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