diff --git a/ChangeLog b/ChangeLog
index 8956b4f1ed..c9ff68303b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -10,6 +10,7 @@ phpMyAdmin - ChangeLog
 - bug #4392 Cannot see databases in nav panel on databases grouping when disabled database expansion
 - bug #4419 No more calendar into search tab
 - bug #4398 Monitor should fit into screen width
+- bug #4418 When copying databases, primary key attributes get lost
 
 4.2.1.0 (2014-05-13)
 - bug #4380 Cannot display table structure with enums containing special characters
diff --git a/libraries/Table.class.php b/libraries/Table.class.php
index fe4369e220..977d22a9da 100644
--- a/libraries/Table.class.php
+++ b/libraries/Table.class.php
@@ -1011,15 +1011,43 @@ class PMA_Table
                 $GLOBALS['sql_indexes'] = PMA_SQP_format(
                     $parsed_sql, 'query_only'
                 );
-                if ($mode == 'one_table') {
+                if ($mode == 'one_table' || $mode == 'db_copy') {
                     $GLOBALS['dbi']->query($GLOBALS['sql_indexes']);
                 }
                 $GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_indexes'];
-                if ($mode == 'one_table') {
+                if ($mode == 'one_table' || $mode == 'db_copy') {
                     unset($GLOBALS['sql_indexes']);
 
                 }
+            }
 
+            /*
+             * add AUTO_INCREMENT to the table
+             *
+             * @todo refactor with similar code above
+             */
+            if (! empty($GLOBALS['sql_auto_increments'])) {
+                if ($mode == 'one_table' || $mode == 'db_copy') {
+                    $parsed_sql =  PMA_SQP_parse($GLOBALS['sql_auto_increments']);
+                    $i = 0;
+
+                    // find the first $table_delimiter, it must be the source
+                    // table name
+                    while ($parsed_sql[$i]['type'] != $table_delimiter) {
+                        $i++;
+                    }
+
+                    // replace it by the target table name, no need
+                    // to backquote()
+                    $parsed_sql[$i]['data'] = $target;
+
+                    // Generate query back
+                    $GLOBALS['sql_auto_increments'] = PMA_SQP_format(
+                        $parsed_sql, 'query_only'
+                    );
+                    $GLOBALS['dbi']->query($GLOBALS['sql_auto_increments']);
+                    $GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_auto_increments'];
+                }
             }
 
         } else {
diff --git a/libraries/operations.lib.php b/libraries/operations.lib.php
index ce5edbdbfb..d4df2cd58a 100644
--- a/libraries/operations.lib.php
+++ b/libraries/operations.lib.php
@@ -390,7 +390,7 @@ function PMA_getSqlConstraintsQueryForFullDb(
         $sql_constraints = '';
         $sql_drop_foreign_keys = '';
         $export_sql_plugin->getTableDef(
-            $db, $each_table, "\n", '', false, false
+            $db, $each_table, "\n", '', false, false, false, false
         );
         if ($move && ! empty($sql_drop_foreign_keys)) {
             $GLOBALS['dbi']->query($sql_drop_foreign_keys);
diff --git a/libraries/plugins/export/ExportSql.class.php b/libraries/plugins/export/ExportSql.class.php
index 902523804a..15071c6849 100644
--- a/libraries/plugins/export/ExportSql.class.php
+++ b/libraries/plugins/export/ExportSql.class.php
@@ -1002,15 +1002,18 @@ class ExportSql extends ExportPlugin
     /**
      * Returns $table's CREATE definition
      *
-     * @param string $db            the database name
-     * @param string $table         the table name
-     * @param string $crlf          the end of line sequence
-     * @param string $error_url     the url to go back in case of error
-     * @param bool   $show_dates    whether to include creation/update/check
-     *                              dates
-     * @param bool   $add_semicolon whether to add semicolon and end-of-line at
-     *                              the end
-     * @param bool   $view          whether we're handling a view
+     * @param string $db                        the database name
+     * @param string $table                     the table name
+     * @param string $crlf                      the end of line sequence
+     * @param string $error_url                 the url to go back in case
+     *                                          of error
+     * @param bool   $show_dates                whether to include creation/
+     *                                          update/check dates
+     * @param bool   $add_semicolon             whether to add semicolon and 
+     *                                          end-of-line at the end
+     * @param bool   $view                      whether we're handling a view
+     * @param bool   $update_indexes_increments whether we need to update
+     *                                          two global variables 
      *
      * @return string resulting schema
      */
@@ -1021,7 +1024,8 @@ class ExportSql extends ExportPlugin
         $error_url,
         $show_dates = false,
         $add_semicolon = true,
-        $view = false
+        $view = false,
+        $update_indexes_increments = true
     ) {
         global $sql_drop_table, $sql_backquotes, $sql_constraints,
             $sql_constraints_query, $sql_indexes, $sql_indexes_query,
@@ -1260,7 +1264,7 @@ class ExportSql extends ExportPlugin
                 //if there are indexes
                 // (look for KEY followed by whitespace to avoid matching
                 //  keyworks like PACK_KEYS)
-                if (preg_match(
+                if ($update_indexes_increments && preg_match(
                     '@KEY[\s]+@',
                     $create_query
                 )) {
@@ -1298,7 +1302,7 @@ class ExportSql extends ExportPlugin
                     . PMA_Util::backquoteCompat($table,  $compat)
                     . $crlf;
                 }
-                if (preg_match(
+                if ($update_indexes_increments && preg_match(
                     '@AUTO_INCREMENT@',
                     $create_query
                 )) {
@@ -1348,7 +1352,7 @@ class ExportSql extends ExportPlugin
                 }
 
                 for ($k = 0; $k < $sql_count; $k++) {
-                    if (preg_match(
+                    if ($update_indexes_increments && preg_match(
                         '( AUTO_INCREMENT | AUTO_INCREMENT,| AUTO_INCREMENT$)',
                         $sql_lines[$k]
                     )) {
@@ -1361,7 +1365,7 @@ class ExportSql extends ExportPlugin
                             " AUTO_INCREMENT", "", $sql_lines[$k]
                         );
                     }
-                    if (preg_match(
+                    if ($update_indexes_increments && preg_match(
                         '@[\s]+(AUTO_INCREMENT=)@',
                         $sql_lines[$k]
                     )) {
@@ -1434,7 +1438,7 @@ class ExportSql extends ExportPlugin
                                     . $matches[3];
                             }
                             $first = false;
-                        } else if (preg_match(
+                        } else if ($update_indexes_increments && preg_match(
                             '@KEY[\s]+@',
                             $sql_lines[$j]
                         )) {