Problem with context suggester when a document has more than 256 categories

Elastic Stack Elasticsearch
1

Hi,

I use the context suggester, well, for suggestions and I have more than 256
different categories.

When I try to index a document with 257 categories, I get the following
error:

{
"error":"IllegalArgumentException[TokenStream expanded to 257 finite
strings. Only <= 256 finite strings are supported]",
"status":500
}

I have uploaded a simple curl example
here: https://gist.github.com/goldmar/2c3f64575df420a5413a

Is this a bug or an expected limitation? How can I solve this problem (e.g.
increase the number of possible categories)?

Also, please note that the documentation does not mention this
limitation: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/suggester-context.html

Best regards,
Mark

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