feat: sqlite subdocument (#2816)

Co-authored-by: Alex Yang <himself65@outlook.com>

packages/native/schema/src/lib.rs

@@ -4,7 +4,8 @@
 pub const SCHEMA: &str = r#"CREATE TABLE IF NOT EXISTS "updates" (
   id INTEGER PRIMARY KEY AUTOINCREMENT,
   data BLOB NOT NULL,
-  timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL
+  timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
+  doc_id TEXT
 );
 CREATE TABLE IF NOT EXISTS "blobs" (
   key TEXT PRIMARY KEY NOT NULL,