async fn preflight_prometheus_rows(
prom_store_handler: &PromStoreProtocolHandlerRef,
batches: &mut [(QueryContextRef, RowInsertRequests)],
) -> Result<()>async fn preflight_prometheus_rows(
prom_store_handler: &PromStoreProtocolHandlerRef,
batches: &mut [(QueryContextRef, RowInsertRequests)],
) -> Result<()>