improve abconfig queries

Zotlabs/Update/_1213.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Zotlabs\Update;
+
+class _1213 {
+
+	function run() {
+		if(ACTIVE_DBTYPE == DBTYPE_MYSQL) {
+			q("START TRANSACTION");
+
+			$r = q("ALTER TABLE abconfig 
+				DROP INDEX chan,
+				DROP INDEX xchan,
+				ADD INDEX chan_xchan (chan, xchan)
+			");
+
+			if($r) {
+				q("COMMIT");
+				return UPDATE_SUCCESS;
+			}
+			else {        
+				q("ROLLBACK");
+				return UPDATE_FAILED;
+			}
+		}
+	}
+
+}