From: cheapie <cheapiephp@gmail.com>
Date: Sat, 24 Oct 2015 04:52:45 +0000 (-0500)
Subject: Improve rollback database indexing
X-Git-Tag: 0.4.14~584
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=380e1504eb2445fd43c03c87d23b8e41e85a7871;p=oweals%2Fminetest.git

Improve rollback database indexing

Index more columns in the action table of the rollback DB to improve the performance of /rollback_check
---

diff --git a/src/rollback.cpp b/src/rollback.cpp
index 3d264b880..2367c3a21 100644
--- a/src/rollback.cpp
+++ b/src/rollback.cpp
@@ -242,8 +242,7 @@ bool RollbackManager::createTables()
 		"	FOREIGN KEY (`oldNode`)   REFERENCES `node`(`id`),\n"
 		"	FOREIGN KEY (`newNode`)   REFERENCES `node`(`id`)\n"
 		");\n"
-		"CREATE INDEX IF NOT EXISTS `actionActor` ON `action`(`actor`);\n"
-		"CREATE INDEX IF NOT EXISTS `actionTimestamp` ON `action`(`timestamp`);\n",
+		"CREATE INDEX IF NOT EXISTS `actionIndex` ON `action`(`x`,`y`,`z`,`timestamp`,`actor`);\n",
 		NULL, NULL, NULL));
 	verbosestream << "SQL Rollback: SQLite3 database structure was created" << std::endl;