From 01f0a453d80101b446886e3af8b0f9f8dd4d9141 Mon Sep 17 00:00:00 2001
From: Sebastian Harl <sh@tokkee.org>
Date: Tue, 19 May 2015 23:17:11 +0200
Subject: [PATCH] sysdbql(7): Document IS [NOT] TRUE / FALSE.

---
 doc/sysdbql.7.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/doc/sysdbql.7.txt b/doc/sysdbql.7.txt
index 9a16e23..de7c7c4 100644
--- a/doc/sysdbql.7.txt
+++ b/doc/sysdbql.7.txt
@@ -129,6 +129,13 @@ Boolean expressions may use the following operators:
 	expression evaluates to NULL if the queried object does not exist (e.g.,
 	when accessing an attribute value).
 
+'<expression>' *IS TRUE*::
+'<expression>' *IS NOT TRUE*::
+'<expression>' *IS FALSE*::
+'<expression>' *IS NOT FALSE*::
+	Check whether an expression evaluates to a boolean *true* or *false* value
+	(or not).
+
 '<expression>' *IN* '<expression>'::
 '<expression>' *NOT IN* '<expression>'::
 	Checks whether the value of the first expression is included in the value
-- 
2.30.2