#46630, by Gordon and Cvbge

database/database.mysql

@@ -482,7 +482,8 @@ CREATE TABLE node_revisions (
   log longtext NOT NULL default '',
   timestamp int(11) NOT NULL default '0',
   format int(4) NOT NULL default '0',
-  PRIMARY KEY  (nid,vid),
+  PRIMARY KEY  (vid),
+  KEY nid (nid),
   KEY uid (uid)
 ) TYPE=MyISAM
 /*!40100 DEFAULT CHARACTER SET utf8 */ ;

database/database.pgsql

@@ -458,8 +458,9 @@ CREATE TABLE node_revisions (
   log text NOT NULL default '',
   timestamp integer NOT NULL default '0',
   format int NOT NULL default '0',
-  PRIMARY KEY  (nid,vid)
+  PRIMARY KEY  (vid)
 );
+CREATE INDEX node_revisions_nid_idx ON node_revisions(nid);
 CREATE INDEX node_revisions_uid_idx ON node_revisions(uid);
 CREATE SEQUENCE node_revisions_vid_seq INCREMENT 1 START 1;
 

database/updates.inc

@@ -755,10 +755,11 @@ function system_update_146() {
       log text NOT NULL default '',
       timestamp integer NOT NULL default '0',
       format int NOT NULL default '0',
-      PRIMARY KEY  (nid,vid))");
+      PRIMARY KEY (vid))");
     $ret[] = update_sql("INSERT INTO {node_revisions} (nid, vid, uid, title, body, teaser, timestamp, format)
       SELECT nid, nid AS vid, uid, title, body, teaser, changed AS timestamp, format
       FROM {node}");
+    $ret[] = update_sql('CREATE INDEX {node_revisions}_nid_idx ON {node_revisions}(nid)');
     $ret[] = update_sql('CREATE INDEX {node_revisions}_uid_idx ON {node_revisions}(uid)');
     $vid = db_next_id('{node}_nid');
     $ret[] = update_sql("CREATE SEQUENCE {node_revisions}_vid_seq INCREMENT 1 START $vid");