diff --git a/doc/sysdbql.7.txt b/doc/sysdbql.7.txt
index 03e09c7b20eb3b1a714ce11440545b2d3565a1bf..5e9fb8558141763f4238fe1e0df4808bd62c1f5a 100644 (file)
--- a/doc/sysdbql.7.txt
+++ b/doc/sysdbql.7.txt
of the second expression which has to be an array value (e.g., *backend*
field). If the second value is not an array or if the type of the first
value does not match the array's element type, the expression always
- evaluates to false.
+ evaluates to false. The first value may also be an array. In this case,
+ the expression evaluates to true if all elements of that array are
+ included in the second array where order does not matter.
Parentheses ('()') may be used around subexpressions to group them and enforce
precedence.