Re: Optimizing `WHERE x IN` query

The suggested query indeed appears to be faster. Thank you.

> Did you try if a properly normalized model performs better?

I've tested the below schema, which doesn't appear to perform much better but 
has a couple other advantages for my application:

```
create table subscriptions (
    email text references users(email),
    ucid text,
    primary key (email, ucid)
);

explain (analyze, buffers) select cv.* from channel_videos cv, subscriptions s 
where cv.ucid = s.ucid and s.email = $1;

```

Is there something else here I'm missing?