[config] new parameter $cfg['Servers'][$i]['ShowDatabasesCommand']

ChangeLog

@@ -20,6 +20,7 @@ $HeadURL: https://phpmyadmin.svn.sourceforge.net/svnroot/phpmyadmin/trunk/phpMyA
 + [export] new export to Texy! markup
 + [lang] Finnish update, thanks to Jouni Kahkonen
 + [config] new parameter $cfg['CheckConfigurationPermissions']
++ [config] new parameter $cfg['Servers'][$i]['ShowDatabasesCommand']
 + rfe #1775288 [transformation] proper display if IP-address stored as INT
 + rfe #1758177 [core] Add the Geometry DataTypes
 + rfe #1741101, patch #1798184 UUID default for CHAR(36) PRIMARY KEY,

libraries/List_Database.class.php

@@ -49,6 +49,12 @@ require_once './libraries/List.class.php';
      * @access protected
      */
     var $_show_databases_disabled = false;
+    
+    /**
+     * @var string command to retrieve databases from server
+     * @access protected
+     */
+    var $_command = null;
 
     /**
      * Constructor
@@ -107,26 +113,30 @@ require_once './libraries/List.class.php';
      * @uses    $GLOBALS['errno']
      * @param   string  $like_db_name   usally a db_name containing wildcards
      */
-    function _retrieve($like_db_name = '')
+    function _retrieve($like_db_name = null)
     {
         if ($this->_show_databases_disabled) {
             return array();
         }
-
+        
-        if (! empty($like_db_name)) {
+        if (null !== $like_db_name) {
-            $like = " LIKE '" . $like_db_name . "';";
+            $command = "SHOW DATABASES LIKE '" . $like_db_name . "'";
+        } elseif (null === $this->_command) {
+            $command = str_replace('#user#', $GLOBALS['cfg']['Server']['user'], 
+                $GLOBALS['cfg']['Server']['ShowDatabasesCommand']);
+            $this->_command = $command;
         } else {
-            $like = ";";
+            $command = $this->_command;
         }
 
-        $database_list = PMA_DBI_fetch_result('SHOW DATABASES' . $like, null, null, $this->_db_link);
+        $database_list = PMA_DBI_fetch_result($command, null, null, $this->_db_link);
         PMA_DBI_getError();
 
         if ($GLOBALS['errno'] !== 0) {
             // failed to get database list, try the control user
             // (hopefully there is one and he has SHOW DATABASES right)
             $this->_db_link = $this->_db_link_control;
-            $database_list = PMA_DBI_fetch_result('SHOW DATABASES' . $like, null, null, $this->_db_link);
+            $database_list = PMA_DBI_fetch_result($command, null, null, $this->_db_link);
 
             PMA_DBI_getError();
 

libraries/config.default.php

@@ -328,6 +328,32 @@ $cfg['Servers'][$i]['DisableIS'] = true;
  */
 $cfg['Servers'][$i]['AllowDeny']['rules'] = array();
 
+/**
+ * SQL command to fetch available databases
+ *
+ * by default most user will be fine with SHOW DATABASES,
+ * for servers with a huge amount of databases it is possible to
+ * define a command which executes faster but wiht less information
+ * 
+ * especialy when accessing database servers from ISPs chaning this command can
+ * result in a great speed improvement
+ * 
+ * fasle will disable fetching databases from the server, only databases in
+ * $cfg['Servers'][$i]['only_db'] will be displayed
+ * 
+ * #user# will be replaced by current user
+ * 
+ * example:
+ * 'SHOW DATABASES'
+ * "SHOW DATABASES LIKE '#user#\_%'"
+ * 'SELECT DISTINCT TABLE_SCHEMA FROM information_schema.SCHEMA_PRIVILEGES'
+ * 'SELECT SCHEMA_NAME FROM information_schema.SCHEMATA'
+ * false
+ * 
+ * @global array $cfg['Servers'][$i]['ShowDatabasesCommand']
+ */
+$cfg['Servers'][$i]['ShowDatabasesCommand'] = 'SHOW DATABASES';
+
 /**
  * Default server (0 = no default server)
  *