changing tags->text to varchar 20, created index on tags(type, userid), and tags(text)

lib/db/mysql.php

@@ -1828,7 +1828,14 @@ function main_upgrade($oldversion=0) {
         }
     }
     
+    // change tags->type to varchar(20), adding 2 indexes for tags table.
+    if ($oldversion < 2006042401) {
+        table_column('tags','type','type','varchar','20','','','not null');
+        modify_database('',"ALTER TABLE prefix_tags ADD INDEX tags_typeuserid_idx (type(20), userid)");
+        modify_database('',"ALTER TABLE prefix_tags ADD INDEX tags_text(text(255))");
+    }
+
     return $result;
 }
 
-?>
+?>

lib/db/mysql.sql

@@ -878,7 +878,9 @@ CREATE TABLE prefix_tags (
   `id` int(10) NOT NULL auto_increment,
   `type` varchar(255) NOT NULL default 'official',
   `userid` int(10) NOT NULL default '0',
-  `text` varchar(255) NOT NULL default '',
+  `text` varchar(20) NOT NULL default '',
+  KEY `tags_typeuserid_idx` (`type`, `userid`),
+  KEY `tags_text` (`text`);
   PRIMARY KEY  (`id`)
 ) TYPE=MyISAM COMMENT ='tags structure for moodle.';
 

lib/db/postgres7.php

@@ -1523,6 +1523,12 @@ function main_upgrade($oldversion=0) {
             }
         }
     }
+    
+    // add 2 indexes to tags table
+    if ($oldversion < 2006042401) {
+        modify_database('',"CREATE INDEX tags_typeuserid_idx ON prefix_tags (type, userid);");
+        modify_database('',"CREATE INDEX tags_text_idx ON prefix_tags (text);");
+    }
 
     return $result;
 }

lib/db/postgres7.sql

@@ -655,6 +655,8 @@ CREATE TABLE prefix_tags (
   userid INTEGER NOT NULL default 0,
   text varchar(255) NOT NULL default ''
 );
+CREATE INDEX tags_typeuserid_idx ON prefix_tags (type, userid);
+CREATE INDEX tags_text_idx ON prefix_tags (text);
 
 CREATE TABLE prefix_blog_tag_instance (
   id SERIAL PRIMARY KEY,

version.php

@@ -6,7 +6,7 @@
 // This is compared against the values stored in the database to determine
 // whether upgrades should be performed (see lib/db/*.php)
 
-   $version = 2006042400;  // YYYYMMDD = date
+   $version = 2006042401;  // YYYYMMDD = date
                            //       XY = increments within a single day
 
    $release = '1.6 Beta 3';    // Human-friendly version name