Add note about sort order of character datatypes being locale-dependent,

per suggestion from Nicolaus Erichsen.

diff --git a/doc/src/sgml/ref/select.sgml b/doc/src/sgml/ref/select.sgml
index 0ffc9cecb73a6b0017d74c7d5ad3892ee9d639b6..9ace534bc310b7cc055fe5d15aed90979569b17f 100644 (file)
--- a/doc/src/sgml/ref/select.sgml
+++ b/doc/src/sgml/ref/select.sgml
@@ -1,5 +1,5 @@
 
 
@@ -618,7 +618,7 @@ ORDER BY expression [ ASC | DESC |
    
     The ordinal number refers to the ordinal (left-to-right) position
     of the result column. This feature makes it possible to define an ordering
-    on the basis of a column that does not have a proper name.
+    on the basis of a column that does not have a unique name.
     This is never absolutely necessary because it is always possible
     to assign a name to a result column using the AS clause, e.g.:
     
@@ -663,6 +663,12 @@ SELECT name FROM distributors ORDER BY code;
    descending sort order nulls sort at the beginning.
    
 
+   
+    Data of character types is sorted according to the locale-specific
+    collation order that was established when the database cluster
+    was initialized.
+   
+