Fixes #4954: MSSQL column comments are not retrieved correctly

framework/CHANGELOG.md

@@ -90,6 +90,7 @@ Yii Framework 2 Change Log
 - Bug #4813: Fixed MSSQL schema that was getting incorrect info about constraints (samdark, SerjRamone, o-rey)
 - Bug #4880: Return value of yii\web\Request::getPrefferedLanguage() was a normalized value instead of a valid language value from the input array (cebe)
 - Bug #4920: `yii\filters\auth\CompositeAuth` should not trigger error as long as one of the methods succeeds (qiangxue)
+- Bug #4954: MSSQL column comments are not retrieved correctly (SerjRamone)
 - Bug: Fixed inconsistent return of `\yii\console\Application::runAction()` (samdark)
 - Bug: URL encoding for the route parameter added to `\yii\web\UrlManager` (klimov-paul)
 - Bug: Fixed the bug that requesting protected or private action methods would cause 500 error instead of 404 (qiangxue)

framework/db/mssql/Schema.php

@@ -248,7 +248,7 @@ SELECT
     CONVERT(VARCHAR, [t2].[value]) AS comment
 FROM {$columnsTableName} AS [t1]
 LEFT OUTER JOIN [sys].[extended_properties] AS [t2] ON
-    [t1].[ordinal_position] = [t2].[minor_id] AND
+    [t2].[minor_id] = COLUMNPROPERTY(OBJECT_ID([t1].[TABLE_SCHEMA] + '.' + [t1].[TABLE_NAME]), [t1].[COLUMN_NAME], 'ColumnID') AND
     OBJECT_NAME([t2].[major_id]) = [t1].[table_name] AND
     [t2].[class] = 1 AND
     [t2].[class_desc] = 'OBJECT_OR_COLUMN' AND