2009/7/27 Tom Lane <[email protected]>:
> (In fact, in a real sense these ARE join problems ... maybe we should
> stop thinking of them as fire-a-bunch-of-triggers and instead think of
> executing a single check query with appropriate WHERE clause ...)
>
Hmm. Presumably that is the same WHERE clause as the UPDATE.
But it has to execute after the update. How does it avoid re-executing
functions, re-incrementing sequences, etc... ?
- Dean
