From cc3c4054738f56fc92f9bad44d01c63d61a7424b Mon Sep 17 00:00:00 2001
From: florianfederspiel <florian@fedeo.de>
Date: Mon, 18 May 2026 21:40:47 +0200
Subject: [PATCH] =?UTF-8?q?KI-AGENT:=20=C3=9Cberspringe=20generierte=20Spa?=
 =?UTF-8?q?lten=20beim=20Mandantenimport?=
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---
 backend/src/utils/tenantFullExport.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/backend/src/utils/tenantFullExport.ts b/backend/src/utils/tenantFullExport.ts
index f508361..cbfb1b9 100644
--- a/backend/src/utils/tenantFullExport.ts
+++ b/backend/src/utils/tenantFullExport.ts
@@ -9,6 +9,7 @@ type TableRows = Record<string, Record<string, any>[]>
 type TableMetadata = {
     columns: string[]
     jsonColumns: Set<string>
+    generatedColumns: Set<string>
 }
 
 export type TenantFullExport = {
@@ -37,7 +38,7 @@ const quoteIdent = (value: string) => `"${value.replace(/"/g, '""')}"`
 
 const tableColumns = async (client: any) => {
     const result = await client.query(`
-        select table_name, column_name, data_type
+        select table_name, column_name, data_type, is_generated
         from information_schema.columns
         where table_schema = 'public'
         order by table_name, ordinal_position
@@ -48,12 +49,16 @@ const tableColumns = async (client: any) => {
         const metadata = columnsByTable.get(row.table_name) || {
             columns: [],
             jsonColumns: new Set<string>(),
+            generatedColumns: new Set<string>(),
         }
 
         metadata.columns.push(row.column_name)
         if (row.data_type === "json" || row.data_type === "jsonb") {
             metadata.jsonColumns.add(row.column_name)
         }
+        if (row.is_generated === "ALWAYS") {
+            metadata.generatedColumns.add(row.column_name)
+        }
 
         columnsByTable.set(row.table_name, metadata)
     }
@@ -220,7 +225,7 @@ const insertRows = async (client: any, table: string, rows: Record<string, any>[
     if (!rows.length) return 0
 
     let inserted = 0
-    const availableColumns = new Set(metadata.columns)
+    const availableColumns = new Set(metadata.columns.filter((column) => !metadata.generatedColumns.has(column)))
 
     for (const row of rows) {
         const rowColumns = Object.keys(row).filter((column) => availableColumns.has(column))