Fixed test break.

framework/CHANGELOG.md

@@ -32,7 +32,7 @@ Yii Framework 2 Change Log
 - Enh #4181: Added `yii\bootstrap\Modal::$headerOptions` and `yii\bootstrap\Modal::$footerOptions` (tuxoff, samdark)
 - Enh #4263: Added migration and SQL schema files for `yii\log\DbTarget` (samdark)
 - Enh #4457: Added support for using noscript for css files registered through asset bundles and Html helper (samdark)
-- Enh #4492: Support PostgreSQL-specific syntax for `QueryBuilder::alterColumn()` (qiangxue)
+    - Enh #4492: Support PostgreSQL-specific syntax for `QueryBuilder::alterColumn()` (qiangxue)
 - Enh #4739: Better display of exceptions when the response format is set as "raw" format (qiangxue)
 - Enh #5223: Query builder now supports selecting sub-queries as columns (qiangxue)
 - Enh #5367: Added `yii\grid\DataColumn::encodeLabel` (SDKiller)

framework/db/pgsql/QueryBuilder.php

@@ -157,7 +157,7 @@ class QueryBuilder extends \yii\db\QueryBuilder
     {
         // https://github.com/yiisoft/yii2/issues/4492
         // http://www.postgresql.org/docs/9.1/static/sql-altertable.html
-        if (!preg_match('/^(DROP\s+DEFAULT|SET|RESET)\s+/i', $type)) {
+        if (!preg_match('/^(DROP|SET|RESET)\s+/i', $type)) {
             $type = 'TYPE ' . $this->getColumnType($type);
         }
         return 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' ALTER COLUMN '