Re: Summary function for pg_buffercache

[Aleksander Alekseev]

Hi hackers,

> > I suggest we focus on saving the memory first and then think about the
> > performance, if necessary.
>
> +1

I made a mistake in v3 cfbot complained about. It should have been:

```
if (RelFileNumberIsValid(BufTagGetRelNumber(&bufHdr->tag)))
```

Here is the corrected patch.

-- 
Best regards,
Aleksander Alekseev

v4-0001-Added-pg_buffercache_summary-function.patch
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