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-rw-r--r--docs/ref/models/fields.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/ref/models/fields.txt b/docs/ref/models/fields.txt
index 5ce3abae72..d870ccff71 100644
--- a/docs/ref/models/fields.txt
+++ b/docs/ref/models/fields.txt
@@ -1150,6 +1150,13 @@ it is recommended to use :attr:`~Field.default`::
Note that a callable (with the parentheses omitted) is passed to ``default``,
not an instance of ``UUID``.
+.. admonition:: Lookups on PostgreSQL
+
+ Using :lookup:`iexact`, :lookup:`contains`, :lookup:`icontains`,
+ :lookup:`startswith`, :lookup:`istartswith`, :lookup:`endswith`, or
+ :lookup:`iendswith` lookups on PostgreSQL don't work for values without
+ hyphens, because PostgreSQL stores them in a hyphenated uuid datatype type.
+
Relationship fields
===================