OpenSearch/docs/plugins/mapper.asciidoc

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[[mapper]]
== Mapper Plugins
Mapper plugins allow new field datatypes to be added to Elasticsearch.
[float]
=== Core mapper plugins
The core mapper plugins are:
<<mapper-size>>::
The mapper-size plugin provides the `_size` meta field which, when enabled,
indexes the size in bytes of the original
{ref}/mapping-source-field.html[`_source`] field.
<<mapper-murmur3>>::
The mapper-murmur3 plugin allows hashes to be computed at index-time and stored
in the index for later use with the `cardinality` aggregation.
include::mapper-size.asciidoc[]
include::mapper-murmur3.asciidoc[]