File: uid-field.asciidoc

package info (click to toggle)
elasticsearch 1.0.3%2Bdfsg-5
  • links: PTS, VCS
  • area: main
  • in suites: jessie-kfreebsd
  • size: 37,220 kB
  • sloc: java: 365,486; xml: 1,258; sh: 714; python: 505; ruby: 354; perl: 134; makefile: 41
file content (11 lines) | stat: -rw-r--r-- 443 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
 
[[mapping-uid-field]]
=== `_uid`

Each document indexed is associated with an id and a type, the internal
`_uid` field is the unique identifier of a document within an index and
is composed of the type and the id (meaning that different types can
have the same id and still maintain uniqueness).

The `_uid` field is automatically used when `_type` is not indexed to
perform type based filtering, and does not require the `_id` to be
indexed.