From 8261560bf1fc5aaf0cd485084a5f51db74181356 Mon Sep 17 00:00:00 2001
From: Kieran Patel <me@kieranajp.co.uk>
Date: Sun, 2 Aug 2020 18:59:12 +0200
Subject: [PATCH] Ensure we don't have duplicated columns in update

---
 src/query-builder/UpdateQueryBuilder.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/query-builder/UpdateQueryBuilder.ts b/src/query-builder/UpdateQueryBuilder.ts
index 2e0497f1f5..99bc8fd9fc 100644
--- a/src/query-builder/UpdateQueryBuilder.ts
+++ b/src/query-builder/UpdateQueryBuilder.ts
@@ -410,7 +410,10 @@ export class UpdateQueryBuilder<Entity> extends QueryBuilder<Entity> implements
 
                 columns.forEach(column => {
                     if (!column.isUpdate) { return; }
-                    updatedColumns.push(column);
+
+                    if (-1 === updatedColumns.indexOf(column)) {
+                        updatedColumns.push(column);
+                    }
 
                     const paramName = "upd_" + column.databaseName;