WARNING: Version 1.5 of Elasticsearch has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
Overrides stemming algorithms, by applying a custom mapping, then protecting these terms from being modified by stemmers. Must be placed before any stemming filters.
Rules are separated by
A list of mapping rules to use.
A path (either relative to
Here is an example:
index : analysis : analyzer : myAnalyzer : type : custom tokenizer : standard filter : [lowercase, custom_stems, porter_stem] filter: custom_stems: type: stemmer_override rules_path : analysis/custom_stems.txt