Analysis
The index analysis module acts as a configurable registry of analyzers that can be used in order to convert a string field into individual terms which are:
- added to the inverted index in order to make the document searchable
- used by high level queries such as the
matchquery to generate search terms.
See Text analysis for configuration details.
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https://www.elastic.co/guide/en/elasticsearch/reference/8.17/index-modules-analysis.html