Re: Missing row after update

On 06/07/2012 11:23 AM, Dinsdale wrote:
> On Jun 7, 12:44 pm, adrian.kla...@gmail.com (Adrian Klaver) wrote:
>> On 06/07/2012 06:57 AM, Dinsdale wrote:
>>   >  Hi there. I am new to Postgresql but very familiar with RDBMS. We are
>>   >  running 8.4 on windows serer 2008 r2. I was updating a record through
>>   >  pgAdmin and was being an a$$ and pressed the run button multiple times
>>   >  and then the record just disappeared. Update query:
>>   >
>>   >  update jaas_login set password=md5(login_name || ':' || realm_name ||
>>   >  ':Password123'), has_logged_in = false, modified=now(),
>>   >  failed_attempts=0 where login_name like 'CompanyAdmin@%';
>>
>> So just to be clear the above was what was run multiple times?
>>
>>   >
>>   >  I cannot find the record at all so tried to re-insert it and the query
>>   >  just runs and runs and runs.
>>
>> Select * from jaas_login where login_name like CompanyAdmin@%'; shows
>> nothing?
>>
>> What is your INSERT query?
>>   >
>>   >  We thought we had backups of this DB but all we have are dump files
>>   >  and I really really don't want to have to restore if I can avoid it. I
>>   >  find it hard to believe that a db as advanced as postgresql will just
>>   >  "lose" data and there has to be some explaination for where the record
>>   >  is.
>>
>> I tend to doubt it just disappeared.
>>   >
>>   >  Any help would really save my butt. Thanks
>>   >
>>   >  Dinsdale
>>   >
>>
>> --
>> Adrian Klaver
>> adrian.kla...@gmail.com
>>
>> --
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>
> I tried every select query I could think of including with no where
> clause and simply searching manually for the record but it was just
> not there. I had someone else verify this as well. I didn't think it
> could just disappear either. We finally decided to use the dump file
> and re-create the database but just before that I tried a backup and
> got an error about a missing attribute on relid xxxx. Someone with
> more Postgres experience said that the table was corrupted and i
> should just rebuild, so we did.

So what is the difference between a backup and restoring from a dump file?

When you rebuilt the database did you use the latest 8.4.x version?

>
> Please note that I CANNOT reproduce this in our QA! I think maybe the
> issue noted by steve below may be the problem.
>


--
Adrian Klaver
adrian.klaver@gmail.com