Function vldb_sqlite_database_upsert_fts_document 

#[unsafe(no_mangle)]
pub extern "C" fn vldb_sqlite_database_upsert_fts_document(
    handle: *mut VldbSqliteDatabaseHandle,
    index_name: *const c_char,
    tokenizer_mode: VldbSqliteFfiTokenizerMode,
    id: *const c_char,
    file_path: *const c_char,
    title: *const c_char,
    content: *const c_char,
    out_result: *mut VldbSqliteFtsMutationResultPod,
) -> i32

通过数据库句柄写入或更新 FTS 文档。 Upsert an FTS document through a database handle.