From 52947e4417a3f60b8f0908f794fe69596e966718 Mon Sep 17 00:00:00 2001
From: Mel O'Hagan <mel@budibase.com>
Date: Thu, 1 Sep 2022 17:21:42 +0100
Subject: [PATCH] Exclude formula columns from Sql drop column

---
 packages/server/src/integrations/base/sqlTable.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/server/src/integrations/base/sqlTable.ts b/packages/server/src/integrations/base/sqlTable.ts
index 4b715e5f3a..af561e81c5 100644
--- a/packages/server/src/integrations/base/sqlTable.ts
+++ b/packages/server/src/integrations/base/sqlTable.ts
@@ -96,7 +96,9 @@ function generateSchema(
     const deletedColumns = Object.entries(oldTable.schema)
       .filter(
         ([key, schema]) =>
-          schema.type !== FieldTypes.LINK && table.schema[key] == null
+          schema.type !== FieldTypes.LINK &&
+          schema.type !== FieldTypes.FORMULA &&
+          table.schema[key] == null
       )
       .map(([key]) => key)
     deletedColumns.forEach(key => {