Document what user name email symbols are supported by tsearch.

diff --git a/doc/src/sgml/textsearch.sgml b/doc/src/sgml/textsearch.sgml
index ed78c1d10a0baab3f63ab38c7ce5d8ffe0c4dd0d..7ddab23e258bda1605454c3781cb7a41b4158369 100644 (file)
--- a/doc/src/sgml/textsearch.sgml
+++ b/doc/src/sgml/textsearch.sgml
@@ -1,4 +1,4 @@
-
+
 
 
  Full Text Search
@@ -1943,6 +1943,13 @@ LIMIT 10;
     languages, token types word and asciiword
     should be treated alike.
    
+
+   
+    email does not support all valid email characters as
+    defined by RFC 5322.  Specifically, the only non-alphanumeric
+    characters supported for email user names are period, dash, and
+    underscore.
+