Ok, good to know. Can you tell me what is the impact of a mismatch between the analyzer configuration in Elasticsearch and the one in Hibernate Search? I am testing disabling the schema validation. From what I saw in the Jest client code, the analyzer configuration in HS does not affect in any way the (bulk) index request payload. I would assume it affects search requests though.

On a related note, I noticed that using a Discriminator for index-time analyzer selection not only does not work with Elasticseatch but also seems to make some of the fields included in the class bridge be excluded from the request to ES (even though the underlying Document has the fields).