diff --git a/Zotlabs/Update/_1231.php b/Zotlabs/Update/_1231.php
new file mode 100644
index 000000000..a685c5b28
--- /dev/null
+++ b/Zotlabs/Update/_1231.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace Zotlabs\Update;
+
+class _1231 {
+
+	function run() {
+	
+		q("START TRANSACTION");
+
+		if(ACTIVE_DBTYPE == DBTYPE_POSTGRES) {
+			$r1 = q("DROP INDEX item_uid");
+			$r2 = q("DROP INDEX item_aid");
+			$r3 = q("DROP INDEX item_restrict");
+			$r4 = q("DROP INDEX item_flags");
+			$r5 = q("DROP INDEX item_private");
+			$r6 = q("DROP INDEX item_starred");
+			$r7 = q("DROP INDEX item_thread_top");
+			$r8 = q("DROP INDEX item_retained");
+			$r9 = q("DROP INDEX item_deleted");
+			$r10 = q("DROP INDEX item_type");
+			$r11 = q("DROP INDEX item_hidden");
+			$r12 = q("DROP INDEX item_unpublished");
+			$r13 = q("DROP INDEX item_delayed");
+			$r14 = q("DROP INDEX item_pending_remove");
+			$r15 = q("DROP INDEX item_blocked");
+			$r16 = q("DROP INDEX item_unseen");
+			$r17 = q("DROP INDEX item_relay");
+			$r18 = q("DROP INDEX item_verified");
+			$r19 = q("DROP INDEX item_notshown");
+
+			$r20 = q("create index item_uid_item_type on item (uid, item_type)");
+			$r21 = q("create index item_uid_item_thread_top on item (uid, item_thread_top)");
+			$r22 = q("create index item_uid_item_blocked on item (uid, item_blocked)");
+			$r23 = q("create index item_uid_item_wall on item (uid, item_wall)");
+			$r24 = q("create index item_uid_item_starred on item (uid, item_starred)");
+			$r25 = q("create index item_uid_item_retained on item (uid, item_retained)");
+			$r26 = q("create index item_uid_item_private on item (uid, item_private)");
+			$r27 = q("create index item_uid_resource_type on item (uid, resource_type)");
+			$r28 = q("create index item_item_deleted_item_pending_remove_changed on item (item_deleted, item_pending_remove, changed)");
+			$r29 = q("create index item_item_pending_remove_changed on item (item_pending_remove, changed)");
+
+			$r30 = q("create index item_thr_parent on item (thr_parent)");
+			
+			$r = (
+				$r1 && $r2 && $r3 && $r4 && $r5 && $r6 && $r7 && $r8 && $r9 && $r10 && $r11 && $r12 && $r13 && $r14
+				&& $r15 && $r16 && $r17 && $r18 && $r19 && $r20 && $r21 && $r22 && $r23 && $r24 && $r25 && $r26
+				&& $r27 && $r28 && $r29 && $r30
+			);
+		}
+		else {
+
+			$r1 = q("ALTER TABLE item DROP INDEX item_unseen");
+			$r2 = q("ALTER TABLE item DROP INDEX item_relay");
+			$r3 = q("ALTER TABLE item DROP INDEX item_verified");
+			$r4 = q("ALTER TABLE item DROP INDEX item_notshown");
+			
+			$r5 = q("ALTER TABLE item ADD INDEX thr_parent (thr_parent)");
+			
+			$r = ($r1 && $r2 && $r3 && $r4 && $r5);
+		}
+
+		if($r) {
+			q("COMMIT");
+			return UPDATE_SUCCESS;
+		}
+
+		q("ROLLBACK");
+		return UPDATE_FAILED;
+
+	}
+
+}
diff --git a/boot.php b/boot.php
index 939fa6d01..cf421c1b4 100755
--- a/boot.php
+++ b/boot.php
@@ -53,7 +53,7 @@ define ( 'PLATFORM_NAME',           'hubzilla' );
 define ( 'STD_VERSION',             '4.1' );
 define ( 'ZOT_REVISION',            '6.0a' );
 
-define ( 'DB_UPDATE_VERSION',       1230 );
+define ( 'DB_UPDATE_VERSION',       1231 );
 
 define ( 'PROJECT_BASE',   __DIR__ );
 
diff --git a/install/schema_mysql.sql b/install/schema_mysql.sql
index 49a2c476a..cb4a3fa74 100644
--- a/install/schema_mysql.sql
+++ b/install/schema_mysql.sql
@@ -691,19 +691,16 @@ CREATE TABLE IF NOT EXISTS `item` (
   KEY `changed` (`changed`),
   KEY `item_origin` (`item_origin`),
   KEY `item_wall` (`item_wall`),
-  KEY `item_unseen` (`item_unseen`),
   KEY `item_uplink` (`item_uplink`),
-  KEY `item_notshown` (`item_notshown`),
   KEY `item_nsfw` (`item_nsfw`),
-  KEY `item_relay` (`item_relay`),
   KEY `item_mentionsme` (`item_mentionsme`),
   KEY `item_nocomment` (`item_nocomment`),
   KEY `item_obscured` (`item_obscured`),
-  KEY `item_verified` (`item_verified`),
   KEY `item_rss` (`item_rss`),
   KEY `item_consensus` (`item_consensus`),
   KEY `item_deleted_pending_remove_changed` (`item_deleted`, `item_pending_remove`, `changed`),
-  KEY `item_pending_remove_changed` (`item_pending_remove`, `changed`)
+  KEY `item_pending_remove_changed` (`item_pending_remove`, `changed`),
+  KEY `thr_parent` (`thr_parent`)
 ) ENGINE=InnoDB  DEFAULT CHARSET=utf8mb4;
 
 CREATE TABLE IF NOT EXISTS `item_id` (
diff --git a/install/schema_postgres.sql b/install/schema_postgres.sql
index 1b6cab51b..e56e054b0 100644
--- a/install/schema_postgres.sql
+++ b/install/schema_postgres.sql
@@ -627,7 +627,6 @@ CREATE TABLE "item" (
   "item_search_vector" tsvector,
   PRIMARY KEY ("id")
 );
-create index "item_uid" on item ("uid");
 create index "item_uuid" on item ("uuid");
 create index "item_parent" on item ("parent");
 create index "item_created" on item ("created");
@@ -638,17 +637,13 @@ create index "item_uid_created" on item ("uid","created");
 create index "item_uid_unseen" on item ("uid","item_unseen");
 create index "item_changed" on item ("changed");
 create index "item_comments_closed" on item ("comments_closed");
-create index "item_aid" on item ("aid");
 create index "item_owner_xchan" on item ("owner_xchan");
 create index "item_author_xchan" on item ("author_xchan");
 create index "item_resource_id" on item ("resource_id");
 create index "item_resource_type" on item ("resource_type");
-create index "item_restrict" on item ("item_restrict");
-create index "item_flags" on item ("item_flags");
 create index "item_commented" on item ("commented");
 create index "item_verb" on item ("verb");
 create index "item_obj_type" on item ("obj_type");
-create index "item_private" on item ("item_private");
 create index "item_llink" on item ("llink");
 create index "item_expires" on item ("expires");
 create index "item_revision" on item ("revision");
@@ -659,30 +654,29 @@ create index "item_uid_mid" on item ("mid","uid");
 create index "item_public_policy" on item ("public_policy");
 create index "item_comment_policy" on item ("comment_policy");
 create index "item_layout_mid" on item ("layout_mid");
-create index "item_unseen" on item ("item_unseen");
 create index "item_wall" on item ("item_wall");
 
 create index "item_origin" on item ("item_origin");
-create index "item_starred" on item ("item_starred");
 create index "item_uplink" on item ("item_uplink");
 create index "item_consensus" on item ("item_consensus");
-create index "item_thread_top" on item ("item_thread_top");
-create index "item_notshown" on item ("item_notshown");
 create index "item_nsfw" on item ("item_nsfw");
-create index "item_relay" on item ("item_relay");
 create index "item_mentionsme" on item ("item_mentionsme");
 create index "item_nocomment" on item ("item_nocomment");
 create index "item_obscured" on item ("item_obscured");
-create index "item_verified" on item ("item_verified");
-create index "item_retained" on item ("item_retained");
 create index "item_rss" on item ("item_rss");
-create index "item_deleted" on item ("item_deleted");
-create index "item_type" on item ("item_type");
-create index "item_hidden" on item ("item_hidden");
-create index "item_unpublished" on item ("item_unpublished");
-create index "item_delayed" on item ("item_delayed");
-create index "item_pending_remove" on item ("item_pending_remove");
-create index "item_blocked" on item ("item_blocked");
+create index "item_thr_parent" on item ("thr_parent");
+
+create index "item_uid_item_type" on item ("uid", "item_type");
+create index "item_uid_item_thread_top" on item ("uid", "item_thread_top");
+create index "item_uid_item_blocked" on item ("uid", "item_blocked");
+create index "item_uid_item_wall" on item ("uid", "item_wall");
+create index "item_uid_item_starred" on item ("uid", "item_starred");
+create index "item_uid_item_retained" on item ("uid", "item_retained");
+create index "item_uid_item_private" on item ("uid", "item_private");
+create index "item_uid_resource_type" on item ("uid", "resource_type");
+create index "item_item_deleted_item_pending_remove_changed" on item ("item_deleted", "item_pending_remove", "changed");
+create index "item_item_pending_remove_changed" on item ("item_pending_remove", "changed");
+
 -- fulltext indexes
 create index "item_search_idx" on  item USING gist("item_search_vector");
 create index "item_allow_cid" on item ("allow_cid");