From: | Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com> |
---|---|
To: | Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
Cc: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Concurrency bug in UPDATE of partition-key |
Date: | 2018-06-19 16:03:44 |
Message-ID: | CAJ3gD9ejqH2SXAqjf4yhyx8r-AMpzq81NZJEZFSEvwrH+nm1JA@mail.gmail.com |
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Lists: | pgsql-hackers |
On 19 June 2018 at 13:06, Dilip Kumar <dilipbalaut(at)gmail(dot)com> wrote:
> On Mon, Jun 18, 2018 at 6:19 PM, Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com> wrote:
>> On 18 June 2018 at 17:56, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>>> On Mon, Jun 18, 2018 at 11:28 AM, Dilip Kumar <dilipbalaut(at)gmail(dot)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 | Content-Type | Size |
---|---|---|
fix_concurrency_bug_v3.patch | application/octet-stream | 13.2 KB |
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