Re: Concurrency bug in UPDATE of partition-key - Mailing list pgsql-hackers

From Amit Khandekar
Subject Re: Concurrency bug in UPDATE of partition-key
Date
Msg-id CAJ3gD9ejqH2SXAqjf4yhyx8r-AMpzq81NZJEZFSEvwrH+nm1JA@mail.gmail.com
Whole thread Raw
In response to Re: Concurrency bug in UPDATE of partition-key  (Dilip Kumar <dilipbalaut@gmail.com>)
Responses Re: Concurrency bug in UPDATE of partition-key
List pgsql-hackers
On 19 June 2018 at 13:06, Dilip Kumar <dilipbalaut@gmail.com> wrote:
> On Mon, Jun 18, 2018 at 6:19 PM, Amit Khandekar <amitdkhan.pg@gmail.com> wrote:
>> On 18 June 2018 at 17:56, Amit Kapila <amit.kapila16@gmail.com> wrote:
>>> On Mon, Jun 18, 2018 at 11:28 AM, Dilip Kumar <dilipbalaut@gmail.com> wrote:
>>>> Should we also create a test case where we can verify that some
>>>> unnecessary or duplicate triggers are not executed?
>>>>
>>>
>>> I am not sure how much value we will add by having such a test.  In
>>> general, it is good to have tests that cover various aspects of
>>> functionality, but OTOH, we have to be careful to not overdo it.
>>
>> Actually I am thinking, it's not a big deal adding a RAISE statement
>> in trigger function in the existing testcases. It will clearly show how
>> many times the trigger has executed. So I will go ahead and do that.
>
> Ok,  That makes sense to me.

Could not add RAISE statement, because the isolation test does not
seem to print those statements in the output. Instead, I have dumped
some rows in a new table through the trigger function, and did a
select from that table. Attached is v3 patch.

-- 
Thanks,
-Amit Khandekar
EnterpriseDB Corporation
The Postgres Database Company

Attachment

pgsql-hackers by date:

Previous
From: Alexander Korotkov
Date:
Subject: Re: [HACKERS] GUC for cleanup indexes threshold.
Next
From: Andres Freund
Date:
Subject: Re: Fast default stuff versus pg_upgrade