_meta field
A mapping type can have custom meta data associated with it. These are not used at all by Elasticsearch, but can be used to store application-specific metadata, such as the class that a document belongs to:
PUT my-index-000001
{ "mappings": { "_meta": { "class": "MyApp::User", "version": { "min": "1.0", "max": "1.3" } } } }
- This
_meta
info can be retrieved with the GET mapping API.
The _meta
field can be updated on an existing type using the update mapping API:
PUT my-index-000001/_mapping
{ "_meta": { "class": "MyApp2::User3", "version": { "min": "1.3", "max": "1.5" } } }