From fae75a32eed227454873f8715bb0d11d6fc3ad39 Mon Sep 17 00:00:00 2001 From: Karen Tracey Date: Sun, 13 Nov 2011 19:28:43 +0000 Subject: [PATCH] Fix #17174: Add note in the supported databases notes that MySQL can't conceive of a time unit smaller than a second. Thanks jammon and poirier. git-svn-id: http://code.djangoproject.com/svn/django/trunk@17095 bcc190cf-cafb-0310-a4f2-bffc1f526a37 --- docs/ref/databases.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/ref/databases.txt b/docs/ref/databases.txt index 9ea0fe72cc..ae47667628 100644 --- a/docs/ref/databases.txt +++ b/docs/ref/databases.txt @@ -372,6 +372,9 @@ store a timezone-aware ``time`` or ``datetime`` to a :class:`~django.db.models.TimeField` or :class:`~django.db.models.DateTimeField` respectively, a ``ValueError`` is raised rather than truncating data. +MySQL does not store fractions of seconds. Fractions of seconds are truncated +to zero when the time is stored. + Row locking with ``QuerySet.select_for_update()`` -------------------------------------------------