[book] document the WEEKDAY rql function
Added in 3.14.
--- a/doc/book/en/annexes/rql/language.rst Thu Feb 16 14:17:53 2012 +0100
+++ b/doc/book/en/annexes/rql/language.rst Mon Feb 20 11:32:55 2012 +0100
@@ -624,6 +624,9 @@
+--------------------------+----------------------------------------+
| :func:`SECOND(Datetime)` | return the seconds of a datetime |
+--------------------------+----------------------------------------+
+| :func:`WEEKDAY(Date)` | return the day of week of a date or |
+| | datetime. Sunday == 1, Saturday == 7. |
++--------------------------+----------------------------------------+
.. _RQLOtherFunctions: