| From: | Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Jeff Davis <pgsql(at)j-davis(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: pg_walinspect: ReadNextXLogRecord's first_record argument |
| Date: | 2022-08-17 16:28:56 |
| Message-ID: | CALj2ACWWUYmgvKioBVTFy4tdjrDjDm3qmeGaG1hF0J+MP+atGg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Aug 17, 2022 at 8:52 PM Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>
> On Wed, Aug 17, 2022 at 12:41 AM Bharath Rupireddy
> <bharath(dot)rupireddyforpostgres(at)gmail(dot)com> wrote:
> > Agreed.
> >
> > Here's a patch (for V15 as well) fixing this bug, please review.
>
> Couldn't you simplify this further by removing the lsn argument from
> GetWALRecordInfo and using record->ReadRecPtr instead? Then
> InitXLogReaderState's second argument could be XLogRecPtr instead of
> XLogRecPtr *.
Done. XLogFindNextRecord() stores the first valid record in EndRecPtr
and the ReadRecPtr is set to InvalidXLogRecPtr by calling
XLogBeginRead(). And XLogNextRecord() sets ReadRecPtr which we can
use.
PSA v2 patches.
--
Bharath Rupireddy
RDS Open Source Databases: https://aws.amazon.com/rds/postgresql/
| Attachment | Content-Type | Size |
|---|---|---|
| v2-master-Use-correct-LSN-for-error-reporting-in-pg_walinsp.patch | application/octet-stream | 7.4 KB |
| v2-PG15-Use-correct-LSN-for-error-reporting-in-pg_walinsp.patch | application/octet-stream | 7.6 KB |
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