The Stempel Analysis plugin integrates Lucene’s Stempel analysis module for Polish into elasticsearch.
It provides high quality stemming for Polish, based on the Egothor project.
This plugin can be installed using the plugin manager:
sudo bin/elasticsearch-plugin install analysis-stempel
The plugin must be installed on every node in the cluster, and each node must be restarted after installation.
This plugin can be downloaded for offline install from https://artifacts.elastic.co/downloads/elasticsearch-plugins/analysis-stempel/analysis-stempel-7.0.0-alpha1.zip.
The plugin can be removed with the following command:
sudo bin/elasticsearch-plugin remove analysis-stempel
The node must be stopped before removing the plugin.
stempel tokenizer and token filteredit
The plugin provides the
polish analyzer and
polish_stem token filter,
which are not configurable.