This functionality is experimental and may be changed or removed completely in a future release. Elastic will take a best effort approach to fix any issues, but experimental features are not subject to the support SLA of official GA features.
The mapper-annotated-text plugin provides the ability to index text that is a combination of free-text and special markup that is typically used to identify items of interest such as people or organisations (see NER or Named Entity Recognition tools).
The elasticsearch markup allows one or more additional tokens to be injected, unchanged, into the token stream at the same position as the underlying text it annotates.
Version 8.0.0 of the Elastic Stack has not yet been released.
The plugin can be removed with the following command:
sudo bin/elasticsearch-plugin remove mapper-annotated-text
The node must be stopped before removing the plugin.