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Meta-Fieldsedit
Each document has metadata associated with it, such as the _index, mapping
_type, and _id meta-fields. The behaviour of some of these meta-fields
can be customised when a mapping type is created.
Identity meta-fieldsedit
|
The index to which the document belongs. | |
|
A composite field consisting of the | |
|
The document’s mapping type. | |
|
The document’s ID. |
Document source meta-fieldsedit
-
_source - The original JSON representing the body of the document.
-
_size -
The size of the
_sourcefield in bytes, provided by themapper-sizeplugin.
Indexing meta-fieldsedit
-
_all - A catch-all field that indexes the values of all other fields. Disabled by default.
-
_field_names - All fields in the document which contain non-null values.
Routing meta-fieldedit
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_routing - A custom routing value which routes a document to a particular shard.
Other meta-fieldedit
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_meta - Application specific metadata.