> We had big performance issues with queries like that, and we modified 
> them to use && (see 
> https://www.postgresql.org/docs/current/functions-array.html ), 
> resulting in a big perf boost

Much appreciated! Unfortunately I'm having trouble turning your suggestions 
into a working query.

`cv.ucid && u.subscriptions`  doesn't appear to work in my case since the 
comparison is `text && text[]`. Something like:

```
explain (analyze, buffers) select cv.* from channel_videos cv inner join 
(select subscriptions from users where email = $1) as u on array[cv.ucid] && 
u.subscriptions;
```

does work but unfortunately doesn't appear to be faster than the current 
query.

Cheers




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