--- tracker2.install	2008-03-11 08:03:52.000000000 +0800
+++ tracker2.install	2008-03-30 11:38:13.000000000 +0800
@@ -3,6 +3,9 @@
 // $Id: tracker2.install,v 1.7 2008/03/11 00:03:52 straussd Exp $
 
 function tracker2_install() {
+  switch ($GLOBALS['db_type']) {
+    case 'mysql':
+    case 'mysqli':
   db_query("CREATE TABLE IF NOT EXISTS {tracker2_node} (
     `nid` int(10) unsigned NOT NULL,
     `published` tinyint(1) NOT NULL,
@@ -20,13 +23,47 @@ function tracker2_install() {
 
   db_query('ALTER TABLE {comments} ADD INDEX tracker_changed (nid, status, timestamp)');
   db_query('ALTER TABLE {comments} ADD INDEX tracker_subscription (uid, nid, status)');
+      break;
+    case 'pgsql':
+      db_query("CREATE TABLE {tracker2_node} (
+        nid int_unsigned NOT NULL,
+        published smallint NOT NULL,
+        changed int_unsigned NOT NULL,
+        PRIMARY KEY  (nid)
+      )");
+      db_query('CREATE INDEX {tracker2_node}_tracker_idx ON {tracker2_node} (published, changed)');
+    
+      db_query("CREATE TABLE {tracker2_user} (
+        nid int_unsigned NOT NULL,
+        published smallint NOT NULL,
+        uid int_unsigned NOT NULL,
+        changed int_unsigned NOT NULL,
+        PRIMARY KEY  (nid, uid)
+      )");
+      db_query('CREATE INDEX {tracker2_user}_tracker_idx ON {tracker2_user} (uid, published, changed)');
+
+      db_query('CREATE INDEX {comments}_tracker_changed_idx ON {comments} (nid, status, timestamp)');
+      db_query('CREATE INDEX {comments}_tracker_subscription_idx ON {comments} (uid, nid, status)');
+      break;
+  }
 }
 
 function tracker2_uninstall() {
+  switch ($GLOBALS['db_type']) {
+    case 'mysql':
+    case 'mysqli':
   db_query('DROP TABLE IF EXISTS {tracker2_node}');
   db_query('DROP TABLE IF EXISTS {tracker2_user}');
   db_query('ALTER TABLE {comments} DROP INDEX tracker_changed');
   db_query('ALTER TABLE {comments} DROP INDEX tracker_subscription');
+      break;
+    case 'pgsql':
+      db_query('DROP TABLE {tracker2_node}');
+      db_query('DROP TABLE {tracker2_user}');
+      db_query('DROP INDEX {comments}_tracker_changed_idx');
+      db_query('DROP INDEX {comments}_tracker_subscription_idx');
+      break;
+  }
   variable_del('tracker2_index_nid');
 }