fix: handle partially upgraded case

packages/nocodb/src/version-upgrader/ncXcdbCreatedAndUpdatedSystemFieldsUpgrader.ts

@@ -260,6 +260,19 @@ async function upgradeModels({
         }
 
         if (!isCreatedByExists) {
+          const columnName = getUniqueColumnName(columns, 'created_by');
+          const dbColumn = dbColumns.find((c) => c.cn === columnName);
+
+          // if column already exist in db but not in meta, just update the meta (partial upgraded case)
+          if (dbColumn) {
+            existingDbColumns.push({
+              uidt: UITypes.CreatedBy,
+              ...dbColumn,
+              column_name: columnName,
+              title: getUniqueColumnAliasName(columns, 'nc_created_by'),
+              system: true,
+            });
+          } else {
             newColumns.push({
               ...(await getColumnPropsFromUIDT(
                 {
@@ -277,8 +290,22 @@ async function upgradeModels({
               altered: Altered.NEW_COLUMN,
             });
           }
+        }
 
         if (!isLastModifiedByExists) {
+          const columnName = getUniqueColumnName(columns, 'updated_by');
+          const dbColumn = dbColumns.find((c) => c.cn === columnName);
+
+          // if column already exist in db but not in meta, just update the meta (partial upgraded case)
+          if (dbColumn) {
+            existingDbColumns.push({
+              uidt: UITypes.LastModifiedBy,
+              ...dbColumn,
+              column_name: columnName,
+              title: getUniqueColumnAliasName(columns, 'nc_updated_by'),
+              system: true,
+            });
+          } else {
             newColumns.push({
               ...(await getColumnPropsFromUIDT(
                 {
@@ -296,6 +323,7 @@ async function upgradeModels({
               altered: Altered.NEW_COLUMN,
             });
           }
+        }
 
         // alter table and add new columns if any
         if (newColumns.length) {