In App Search API, how i can in query for documents that does not contain a particular field. In Elasticsearch we have "exists" keyword in while in App Search API there does not seems to be "exists" keyword to check if a field exists in a particular document.
Hey @jayrraval, you are correct, I don't believe there is an "exists" query for App Search.
Just thinking out loud, you could probably handle this with some pre-processing. Make sure that documents that don't have the field set get indexed with a consistent empty value, like: field: ""
.
Then in a query you could do:
"filters" : {
"field": ""
}
Thanks Jason for the clarification. It seems in App Search API empty fields filters are not working. We might need to initialize the field with a constant (non-empty) value and filter on that constant value.
Ah, you're right. I suspect that is a bug, I can't imagine that is an intended behavior. I'll see if we can get that fixed. In the meantime, I recommend using a constant (non-empty) value as you suggested, or even a separate field, like isFieldSet: false
.
Thanks Jason ! Appreciate your help !
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