Re: Problem with records that disappear.

On 2013-01-14 10:45, John R Pierce wrote:
> On 1/14/2013 12:15 AM, Condor wrote:
>>
>> When I call the function from php everything it's seems to work,
>> but some time modify records just disappear. I don't have any ideas
>> for the moment
>> what is the problem in my postgresql or in my php code. I'm sure
>> there was a recording was made.
>> I run in middle night vacuum, reindex on tables and vacuum analyze;
>> I check my postgresql logs, but no any errors. I check the php logs,
>> but no errors.
>> My vacuum also did not log any error messages. This problem happened
>> one or two times per month
>> and I can't track him. Is not happened very often. My question is:
>> Is there any chance this function
>> to stay opened or some thing like that and on the night when vacuum
>> is started to rollback changes ?
>> Also any other suggestions are welcome.
>
> are you calling these functions within the context of a larger
> transaction, or just as standalone statements without an epxlicit
> BEGIN TRANSACTION ?    if they are being called from within a
> transaction, and something else in that transaction triggers a
> rollback, then ALL of the changes made in that transaction go away.
> once a transaction is committed, nothing can undo it, other than
> restoring a backup or changing the data explicitly in another
> transaction, or something.

It's a standalone statements without BEGIN TRANSACTION. An update is
easy to explain with another
but insert with missing row and there is no DELETE command in whole
code and no one other have access to server.
No any error logs, only access log system insert that user make the
changes (no info what changes).