Re: slow insert speeds with bytea

On Mon, Dec 2, 2019 at 4:42 AM Alex O'Ree <alexoree(at)apache(dot)org> wrote:

> Is there anything I can to increase insert speeds for bytea? Currently
> running postgres 9.6.15
>
> I have a few tables without a bytea and a few with bytea. There is a large
> performance difference with inserts between the two. I'm inserting a byte[]
> that's usually less than 1MB on content. The content itself is actually
> just utf8 string data.
>
> For the non-bytea table, inserts can be as high as 40k rows/sec, whereas
> the bytea table is closer to 4k/sec or less.
>
> If this is just a limitation of postgres, then that's fine but the
> performance delta is so significant that i feel like i'm missing something
>

That does seem pretty drastic. But I don't think we will get
anywhere unless you post your actual benchmarking program so that we can
try it for ourselves. I certainly don't see anything that drastic in my
own testing. Maybe the bottleneck is on the client side.

Cheers,

Jeff