--- source/passdb/pdb_pgsql.c.orig	2005-01-21 17:29:12.000000000 -0300
+++ source/passdb/pdb_pgsql.c	2005-02-11 13:40:23.000000000 -0300
@@ -266,6 +266,9 @@
 static NTSTATUS pgsqlsam_getsampwnam ( struct pdb_methods *methods, SAM_ACCOUNT *user, const char *sname )
 {
   struct pdb_pgsql_data *data;
+  size_t i, l;
+  char *lowercasename;
+  NTSTATUS result;
   
   SET_DATA(data, methods);
   
@@ -274,8 +277,18 @@
     DEBUG( 0, ("invalid name specified") ) ;
     return NT_STATUS_INVALID_PARAMETER;
   }
+
+  lowercasename = smb_xstrdup(sname);
+  l = strlen(lowercasename);
+  for(i = 0; i < l; i++) {
+    lowercasename[i] = tolower(lowercasename[i]);
+  }
   
-  return pgsqlsam_select_by_field( methods, user, SQL_SEARCH_USER_NAME, sname ) ;
+  result = pgsqlsam_select_by_field( methods, user, SQL_SEARCH_USER_NAME, lowercasename ) ;
+
+  SAFE_FREE( lowercasename ) ;
+
+  return result;
 }