What is the use of payload?

Elastic Stack Elasticsearch
1

The documentation describes the plugin "Delimited Payload Token Filter":
https://www.elastic.co/guide/en/elasticsearch/reference/7.0/analysis-delimited-payload-tokenfilter.html

What is the use of it?
How can I use it?

I understand that in some way you can raise the price of the term in the string.
"foo|1.0 bar|50.0"
Evaluation after the term may somehow affect the relevance?

2

No ideas?

3

It's an advanced feature, and to really use it you need to get into the realm of plugins to use per-term metadata to do something in your application

One example would be to weigh an occurrence of a term differently, another might be to tag the part of speech or type of entity of a term. Is "bob" a person or is "bob" the verb for 'bobbing up and down'

I would google around for "Lucene payloads" to get a rough idea of all their applications

4

Thanks for the answer!
It turns out that there is a filter, but elasticsearch itself is not able to do anything with a payload and need to write a plugin in which you need to rewrite the similarity for Lucene to take into account the payload?

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