From 2a1077ff43118b937d8b1028d81ec5558329b35a Mon Sep 17 00:00:00 2001
From: Marc Delisle <marc@infomarc.info>
Date: Sat, 29 Aug 2009 11:41:26 +0000
Subject: [PATCH] bug [export] Exporting results of a query which contains a
 LIMIT clause inside a subquery

---
 ChangeLog                   |  2 ++
 libraries/sqlparser.lib.php | 20 +++++++++++++++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 90e85ba1d..7eee473a1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -41,6 +41,8 @@ $HeadURL: https://phpmyadmin.svn.sourceforge.net/svnroot/phpmyadmin/trunk/phpMyA
 - bug #2813879 [export] Duplicate empty lines when exporting without comments 
 - bug #2825919 [export] Trigger export with database name 
 - bug #2823996 [data] Cannot edit row with no PK and a BIT field 
+- bug [export] Exporting results of a query which contains a LIMIT clause
+  inside a subquery
 
 3.2.1.0 (2009-08-09)
 - bug #2799009 Login with ipv6 IP address breaks redirect
diff --git a/libraries/sqlparser.lib.php b/libraries/sqlparser.lib.php
index 37783734a..f87a0eac7 100644
--- a/libraries/sqlparser.lib.php
+++ b/libraries/sqlparser.lib.php
@@ -1455,6 +1455,8 @@ if (! defined('PMA_MINIMUM_COMMON')) {
         $first_reserved_word = '';
         $current_identifier = '';
         $unsorted_query = $arr['raw']; // in case there is no ORDER BY
+        $number_of_brackets = 0;
+        $in_subquery = false;
 
         for ($i = 0; $i < $size; $i++) {
 //DEBUG echo "Loop2 <strong>"  . $arr[$i]['data'] . "</strong> (" . $arr[$i]['type'] . ")<br />";
@@ -1471,8 +1473,24 @@ if (! defined('PMA_MINIMUM_COMMON')) {
             //
             // this code is not used for confirmations coming from functions.js
 
+            if ($arr[$i]['type'] == 'punct_bracket_open_round') {
+                $number_of_brackets++;
+            }
+
+            if ($arr[$i]['type'] == 'punct_bracket_close_round') {
+                $number_of_brackets--;
+                if ($number_of_brackets == 0) {
+                    $in_subquery = false;
+                }
+            }
+
             if ($arr[$i]['type'] == 'alpha_reservedWord') {
                 $upper_data = strtoupper($arr[$i]['data']);
+
+                if ($upper_data == 'SELECT' && $number_of_brackets > 0) {
+                    $in_subquery = true;
+                }
+
                 if (!$seen_reserved_word) {
                     $first_reserved_word = $upper_data;
                     $subresult['querytype'] = $upper_data;
@@ -1496,7 +1514,7 @@ if (! defined('PMA_MINIMUM_COMMON')) {
                     }
                 }
 
-                if ($upper_data == 'LIMIT') {
+                if ($upper_data == 'LIMIT' && ! $in_subquery) {
                     $section_before_limit = substr($arr['raw'], 0, $arr[$i]['pos'] - 5);
                     $in_limit = TRUE;
                     $seen_limit = TRUE;