Re: [HACKERS] pgrowlocks relkind check - Mailing list pgsql-hackers

From Peter Eisentraut
Subject Re: [HACKERS] pgrowlocks relkind check
Date
Msg-id bb3d9024-ba7e-a06e-b619-d9933ceb9168@2ndquadrant.com
Whole thread Raw
In response to Re: [HACKERS] pgrowlocks relkind check  (Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>)
Responses Re: [HACKERS] pgrowlocks relkind check  (Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>)
List pgsql-hackers
On 6/12/17 21:10, Amit Langote wrote:
> On 2017/06/13 0:29, Peter Eisentraut wrote:
>> On 4/24/17 21:22, Amit Langote wrote:
>>>>> create extension pgrowlocks;
>>>>> create view one as select 1;
>>>>> select pgrowlocks('one');
>>>>> -- ERROR:  could not open file "base/68730/68748": No such file or directory
>>>>>
>>>>> With the attached patch:
>>>>>
>>>>> select pgrowlocks('one');
>>>>> ERROR:  "one" is not a table, index, materialized view, sequence, or TOAST
>>>>> table

> FWIW, patch seems simple enough to be committed into 10, unless I am
> missing something.
> 
> Rebased one attached.

According to CheckValidRowMarkRel() in execMain.c, we don't allow row
locking in sequences, toast tables, and materialized views.  This is not
quite the same as what your patch wants to do.  I suppose we could stillallow reading the relation, and it won't ever
showanything
 
interesting.  What do you think?

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services



pgsql-hackers by date:

Previous
From: Rahila Syed
Date:
Subject: Re: [HACKERS] Dropping partitioned table drops a previously detached partition
Next
From: Tom Lane
Date:
Subject: Re: [HACKERS] RTE_NAMEDTUPLESTORE, enrtuples and comments