From 7ad1796db5bd9a68b45497818aabae4256deb4c3 Mon Sep 17 00:00:00 2001
From: Jan Prochazka <jan.prochazka@gmail.com>
Date: Thu, 23 Jun 2022 10:06:09 +0200
Subject: [PATCH] filtering by XML columsn in MSSQL

---
 .../dbgate-plugin-mssql/src/frontend/driver.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/plugins/dbgate-plugin-mssql/src/frontend/driver.js b/plugins/dbgate-plugin-mssql/src/frontend/driver.js
index 3f7c8b56d..feca80c93 100644
--- a/plugins/dbgate-plugin-mssql/src/frontend/driver.js
+++ b/plugins/dbgate-plugin-mssql/src/frontend/driver.js
@@ -86,6 +86,24 @@ const dialect = {
         },
       };
     }
+    if (dataType && dataType.toUpperCase() == 'XML') {
+      return {
+        exprType: 'call',
+        func: 'CONVERT',
+        alias: alias || columnName,
+        args: [
+          {
+            exprType: 'raw',
+            sql: 'NVARCHAR(MAX)',
+          },
+          {
+            exprType: 'column',
+            columnName,
+            source,
+          },
+        ],
+      };
+    }
   },
 };