--- postgresql_adapter.rb.orig	2010-02-25 14:42:49.000000000 -0800
+++ postgresql_adapter.rb	2010-02-25 15:45:32.000000000 -0800
@@ -764,7 +764,7 @@
         end
         if pk
           if sequence
-            quoted_sequence = quote_column_name(sequence)
+            quoted_sequence = quote_table_name(sequence)
 
             select_value <<-end_sql, 'Reset sequence'
               SELECT setval('#{quoted_sequence}', (SELECT COALESCE(MAX(#{quote_column_name pk})+(SELECT increment_by FROM #{quoted_sequence}), (SELECT min_value FROM #{quoted_sequence})) FROM #{quote_table_name(table)}), false)
@@ -818,8 +818,26 @@
           end_sql
         end
 
-        # [primary_key, sequence]
-        [result.first, result.last]
+        primary_key = result.first
+        sequence = result.last
+        
+        if ! sequence.blank?
+          result = query(<<-end_sql, 'Find sequence schema if any')[0]
+            SELECT name.nspname
+            FROM pg_class      seq,
+                 pg_namespace  name,
+                 pg_depend     dep
+            WHERE seq.relname       = '#{sequence}'
+              AND seq.oid           = dep.objid
+              AND dep.refobjid      = '#{quote_table_name(table)}'::regclass
+              AND seq.relnamespace  = name.oid
+          end_sql
+          if ! result.nil? and ! result.empty?
+            sequence = result.first + "." + sequence
+          end
+        end
+
+        [primary_key, sequence]
       rescue
         nil
       end