Fix for #9739 - there was an issue with the mango syntax, when working with multi attachment columns it was using an AND comparator instead of OR, it should be searching for rows that contain any attachment column, not all attachment columns.

packages/backend-core/src/migrations/migrations.ts

@@ -86,7 +86,11 @@ export const runMigration = async (
     count++
     const lengthStatement = length > 1 ? `[${count}/${length}]` : ""
 
-    const db = getDB(dbName)
+    const db = getDB(dbName, { skip_setup: true })
+    // DB doesn't exist - no-op required
+    if (!(await db.exists())) {
+      continue
+    }
     try {
       const doc = await getMigrationsDoc(db)
 

packages/server/src/sdk/app/rows/attachments.ts

@@ -13,13 +13,13 @@ function generateAttachmentFindParams(
 ) {
   const params: CouchFindOptions = {
     selector: {
+      $or: attachmentCols.map(col => ({ [col]: { $exists: true } })),
       _id: {
         $regex: `^${DocumentType.ROW}${SEPARATOR}${tableId}`,
       },
     },
     limit: FIND_LIMIT,
   }
-  attachmentCols.forEach(col => (params.selector[col] = { $exists: true }))
   if (bookmark) {
     params.bookmark = bookmark
   }