From b266b1465393995b3be51d5ba207d5249560884f Mon Sep 17 00:00:00 2001
From: dull b <dull.bananas0@gmail.com>
Date: Tue, 25 Jul 2023 18:06:09 +0000
Subject: [PATCH] Add comment about futures

---
 crates/db_schema/src/traits.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/crates/db_schema/src/traits.rs b/crates/db_schema/src/traits.rs
index 736bceb95..c26ba939a 100644
--- a/crates/db_schema/src/traits.rs
+++ b/crates/db_schema/src/traits.rs
@@ -29,6 +29,11 @@ pub type Delete<T> = DeleteStatement<<T as HasTable>::Table, <T as IntoUpdateTar
 
 pub type Find<'a, T> = dsl::Find<<T as HasTable>::Table, <T as Crud<'a>>::IdType>;
 
+// When using `RunQueryDsl::execute`, directly building futures with `Box::pin` and `TryFutureExt::and_then`
+// instead of `async` + `await` fixes weird compile errors.
+// https://github.com/rust-lang/rust/issues/102211
+// When using `RunQueryDsl::first`, `async` + `await` works, and it must be used otherwise the closure for `and_then`
+// will both own `conn` and return a future that references it.
 #[async_trait]
 pub trait Crud<'a>
 where