Fix doc typo: unicode_assigned() return type.

Reported-by: Hironobu SUZUKI
Discussion: https://postgr.es/m/5dd88820-bb00-4b90-904b-738ea2e4ee2e@interdb.jp
Backpatch-through: 17

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 1a209eaee0a5c89476e5c64abe62c27efc8470f9..9fba2676f07f80a645e7afef48cfde4ef436f140 100644 (file)
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -2910,7 +2910,7 @@ SELECT NOT(ROW(table.*) IS NOT NULL) FROM TABLE; -- detect at least one null in
          unicode_assigned
         
         unicode_assigned ( text )
-        text
+        boolean
        
        
         Returns true if all characters in the string are