Fix incorrect error on DEFAULT keyword in ALTER operation

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## [Unreleased]
 
+* Fixed incorrect error thrown on DEFAULT keyword in ALTER statement (#218)
+
 ## [4.3.0] - 2018-12-25
 
 * Add support for aliases on CASE expressions (#162 and #192)

src/Components/AlterOperation.php

@@ -294,7 +294,7 @@ public static function build($component, array $options = array())
      * @param string $tokenValue Value of current token
      */
     private static function checkIfColumnDefinitionKeyword($tokenValue) {
-        $common_options = array('AUTO_INCREMENT', 'COMMENT');
+        $common_options = array('AUTO_INCREMENT', 'COMMENT', 'DEFAULT');
         // Since AUTO_INCREMENT and COMMENT can be used for
         // both table as well as a specific column in the table
         return in_array($tokenValue, $common_options);

tests/Parser/AlterStatementTest.php

@@ -26,6 +26,7 @@ public function testAlterProvider()
             array('parser/parseAlter5'),
             array('parser/parseAlter6'),
             array('parser/parseAlter7'),
+            array('parser/parseAlter8'),
             array('parser/parseAlterErr'),
             array('parser/parseAlterErr2'),
         );

tests/data/parser/parseAlter8.in

@@ -0,0 +1 @@
+ALTER TABLE `api_tab_user` CHANGE `rank_id` `rank_id` INT(4) NOT NULL DEFAULT '4';

tests/data/parser/parseAlter8.out

@@ -0,0 +1 @@
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