Are you using PG's sequence/auto increment???
If so.
Once PG fires off the nextval() for the sequence that number is
considered used and gone even if the transaction that called nextval()
is rolled back
Depending on how the app is written nextval() might be called, but allow
the User to cancel the invoice creation before the insert into table is
completed eating up Invoice numbers
To reset Sequences number call
Select setval('Sequence_Name', VAlue_To_Set_To);
Most people ignore this kind of annoyance when sequence numbers jump.
Now if it happens all the time where every X hours eating up Z number of
sequence numbers then one needs to dig into the logs and figure out what
is calling nextval()
Search the logs to see what is calling nextval('My_Sequence')
You may need to turn up logging to find it.
On 7/7/2010 2:59 PM, John wrote:
> I am the only developer, DBA etc.. for a small project. Today (yesterday was
> everything was perfect) many of the sequence numbers fell behind what is the
> actual PK value. For example the invoice PK sequence current value = 1056
> but the table PK was 1071. Nobody (other than myself) knows how to
> edit/access the postgres server. So
>
> 1. Does anyone know how this could have happened?????? Other than human
> interaction.
>
> 2. Does anyone have a script to reset the sequences to match the tables?
>
> Thanks in advance,
>
> Johnf
>
>
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