From d5ed89b946297270ec28abf44bef2371a06f1f4f Mon Sep 17 00:00:00 2001
From: Hilko Bengen <bengen@debian.org>
Date: Sat, 7 Jun 2014 12:02:12 +0200
Subject: Imported Upstream version 1.0.3

---
 docs/reference/mapping/fields/uid-field.asciidoc | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 docs/reference/mapping/fields/uid-field.asciidoc

(limited to 'docs/reference/mapping/fields/uid-field.asciidoc')

diff --git a/docs/reference/mapping/fields/uid-field.asciidoc b/docs/reference/mapping/fields/uid-field.asciidoc
new file mode 100644
index 0000000..f9ce245
--- /dev/null
+++ b/docs/reference/mapping/fields/uid-field.asciidoc
@@ -0,0 +1,11 @@
+[[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.
-- 
cgit v1.2.3

