IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Metadata fieldsedit
Each document has metadata associated with it, such as the _index
, mapping
_type
, and _id
metadata fields. The behavior of
some of these metadata fields can be customized when a mapping type is created.
Identity metadata fieldsedit
The index to which the document belongs. |
|
The document’s mapping type. |
|
The document’s ID. |
Document source metadata fieldsedit
-
_source
- The original JSON representing the body of the document.
-
_size
-
The size of the
_source
field in bytes, provided by themapper-size
plugin.
Indexing metadata fieldsedit
-
_field_names
- All fields in the document which contain non-null values.
-
_ignored
-
All fields in the document that have been ignored at index time because of
ignore_malformed
.
Routing metadata fieldedit
-
_routing
- A custom routing value which routes a document to a particular shard.
Other metadata fieldedit
-
_meta
- Application specific metadata.