Tom Lane wrote:
> > Rui Hai Jiang writes:
> > > I think I found an issue in the TopoSort() function.
> >
> > This indeed seems like a live bug introduced by a1c1af2a.
> > Robert?
>
> This is pretty thoroughly swapped out of my head, but it l
Could the attached patch fix this issue? Or does any one else plan to fix
it?
If people are busy and have not time, I can go ahead to fix it. To fix
this issue, do we need a patch for each official branch?
Regards,
Ruihai
On Tue, Jul 2, 2019 at 11:23 PM Tom Lane wrote:
> Rui Hai Ji
Hi Hackers,
I think I found an issue in the TopoSort() function.
As the comments say,
/* .
* .. If there are any other processes
* in the same lock group on the queue, set their number of
* beforeConstraints to -1 to
I finally found this.
https://www.postgresql.org/message-id/29104.1182785028%40sss.pgh.pa.us
This is very useful to understand the Soft Block.
On Wed, Jun 19, 2019 at 7:18 PM Rui Hai Jiang wrote:
> Hello, hackers.
>
> Any body know how to produce a Soft Block case of Deadlock Detec
Hello, hackers.
Any body know how to produce a Soft Block case of Deadlock Detection?
I have produced the Hard Block case, but can't produce the Soft Block case.
I read the design: src/backend/storage/lmgr/README. It reads,
"If a process A is behind a process B in some lock's wait queue, and
Hello,
When I run a select query, e.g. select id from t, all columns in table "t" are
checked to see if a column named "id" exists or not, and a Var is created for
"id" if the column does exist.
Function scanRTEForColumn() does this job.
But I see in scanRTEForColumn(), the loop does not
From: Tom Lane <t...@sss.pgh.pa.us>
Sent: Friday, November 24, 2017 12:50:37 AM
To: Rui Hai Jiang
Cc: pgsql-hack...@postgresql.org
Subject: Re: How is the PostgreSQL debuginfo file generated
Rui Hai Jiang <ruihaiji...@msn.com> writes:
> I’m wonderi
