Re: pg_serial early wraparound

From: Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>
To: Anastasia Lubennikova <lubennikovaav(at)gmail(dot)com>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Thomas Munro <munro(at)ip9(dot)org>
Subject: Re: pg_serial early wraparound
Date: 2017-06-28 01:11:29
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On Sat, Mar 25, 2017 at 7:27 AM, Thomas Munro
<thomas(dot)munro(at)enterprisedb(dot)com> wrote:
> On Sat, Mar 25, 2017 at 3:11 AM, Anastasia Lubennikova
> <lubennikovaav(at)gmail(dot)com> wrote:
>> You claim that SLRUs now support five digit segment name, while in slru.h
>> at current master I see the following:
>> * Note: slru.c currently assumes that segment file names will be four hex
>> * digits. This sets a lower bound on the segment size (64K transactions
>> * for 32-bit TransactionIds).
>> */

I've now complained about that comment in a separate thread.

> It's not urgent, it's just cleanup work, so I've now moved it to the
> next commitfest. I will try to figure out a new way to demonstrate
> that it works correctly without having to ask a review[er] to disable
> any assertions. Thanks again.

Here's a rebased batch.

Thomas Munro

Attachment Content-Type Size
ssi-slru-wraparound-v2.patch application/octet-stream 3.6 KB

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