I would like to declare a field to null not with null_value.
Are "" and null equivalent? If I do not write anything to field, will ES set set the null automatically?
Is empty string stored in doc?
I would like to declare a field to null not with null_value.
Are "" and null equivalent? If I do not write anything to field, will ES set set the null automatically?
Is empty string stored in doc?
If I do not write anything to field, will ES set set the null automatically?
Yes. And that's the best approach.
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