From 435392cbfe150c5e85d092686b3b7e20273421cc Mon Sep 17 00:00:00 2001
From: Michael Kret <88898367+michael-radency@users.noreply.github.com>
Date: Mon, 11 Dec 2023 17:34:24 +0200
Subject: [PATCH] fix(Postgres Node): Do not include id column in upsert fields
 selection if it's not unique (#7975)

## Summary
Do not include id column in upsert fields selection if it's not unique
Forum:
https://community.n8n.io/t/postgres-node-insert-or-update-unique-column-name/32520
---
 .../nodes-base/nodes/Postgres/v2/methods/resourceMapping.ts     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/nodes-base/nodes/Postgres/v2/methods/resourceMapping.ts b/packages/nodes-base/nodes/Postgres/v2/methods/resourceMapping.ts
index ce2e29c513..08959acc6b 100644
--- a/packages/nodes-base/nodes/Postgres/v2/methods/resourceMapping.ts
+++ b/packages/nodes-base/nodes/Postgres/v2/methods/resourceMapping.ts
@@ -77,7 +77,7 @@ export async function getMappingColumns(
 					id: col.column_name,
 					displayName: col.column_name,
 					required: col.is_nullable !== 'YES' && !isAutoIncrement,
-					defaultMatch: col.column_name === 'id',
+					defaultMatch: (col.column_name === 'id' && canBeUsedToMatch) || false,
 					display: true,
 					type,
 					canBeUsedToMatch,