From 808510746e110bf133f441ff9c5d7fc8d23be8d3 Mon Sep 17 00:00:00 2001
From: yyh <yuanyouhuilyz@gmail.com>
Date: Thu, 22 Jan 2026 16:25:43 +0800
Subject: [PATCH] fix: show columns for empty sqlite tables

---
 .../workflow/skill/hooks/use-sqlite-database.ts       | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/web/app/components/workflow/skill/hooks/use-sqlite-database.ts b/web/app/components/workflow/skill/hooks/use-sqlite-database.ts
index b0c8b30d85..9050a480e2 100644
--- a/web/app/components/workflow/skill/hooks/use-sqlite-database.ts
+++ b/web/app/components/workflow/skill/hooks/use-sqlite-database.ts
@@ -210,8 +210,17 @@ export function useSQLiteDatabase(downloadUrl: string | undefined): UseSQLiteDat
       `SELECT * FROM "${safeName}"${resolvedLimit ? ` LIMIT ${resolvedLimit}` : ''}`,
       [],
     )
+    let columns = result.columns
+    if (columns.length === 0) {
+      const columnResult = await client.sqlite3.execWithParams(
+        db,
+        `PRAGMA table_info("${safeName}")`,
+        [],
+      )
+      columns = columnResult.rows.map(row => String(row[1]))
+    }
     const data: SQLiteQueryResult = {
-      columns: result.columns,
+      columns,
       values: result.rows as SQLiteValue[][],
     }
     cacheRef.current.set(cacheKey, data)