Spec for `onConflictDoUpdate` and nulls

I observe the behaviour of the

set

set

clause is that a

null

null

value in the object to be set means that those values are not set (to

null

null

, i.e. they are left as they were). Is that something I can rely on? I can't see it documented anywhere.

Spec for `onConflictDoUpdate` and nulls - Drizzle Team