Merge branch 'QA_4_5' into QA_4_6

ChangeLog

@@ -61,6 +61,7 @@ phpMyAdmin - ChangeLog
 - issue #11799 Backslashes in comments are being interpreted as escape characters
 - issue #11909 Can't insert row into table that contains generated column
 - issue #11677 sql-parser and php-gettext collide.
+- issue #11920 Can't disable backquotes in export
 
 4.5.4.1 (2016-01-29)
 - issue #11892 Error with PMA 4.4.15.3

libraries/plugins/export/ExportSql.php

@@ -1548,6 +1548,12 @@ class ExportSql extends ExportPlugin
             // analysis.
             if (!$view) {
 
+                if (empty($sql_backquotes)) {
+                    // Option "Enclose table and column names with backquotes"
+                    // was checked.
+                    Context::$MODE |= Context::NO_ENCLOSING_QUOTES;
+                }
+
                 // Using appropriate quotes.
                 if (($compat === 'MSSQL') || ($sql_backquotes === '"')) {
                     Context::$MODE |= Context::ANSI_QUOTES;

libraries/sql-parser/src/Context.php

@@ -190,6 +190,13 @@ abstract class Context
     // https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sqlmode_strict_trans_tables
     const STRICT_TRANS_TABLES           = 1048576;
 
+    // Custom modes.
+
+    // The table and column names and any other field that must be escaped will
+    // not be.
+    // Reserved keywords are being escaped regardless this mode is used or not.
+    const NO_ENCLOSING_QUOTES           = 1073741824;
+
     /*
      * Combination SQL Modes
      * https://dev.mysql.com/doc/refman/5.0/en/sql-mode.html#sql-mode-combo
@@ -520,9 +527,16 @@ abstract class Context
             return $str;
         }
 
+        if ((static::$MODE & Context::NO_ENCLOSING_QUOTES)
+            && (!static::isKeyword($str, true))
+        ) {
+            return $str;
+        }
+
         if (static::$MODE & Context::ANSI_QUOTES) {
             $quote = '"';
         }
+
         return $quote . str_replace($quote, $quote . $quote, $str) . $quote;
     }
 }