On Thu, 2002-02-14 at 10:29, Manuel Duran Aguete wrote:
> Hi,
>
> I'm usign PostgreSQL v7.1.2 under Solaris 7 + DBD::Pg for a project
> degree. The project is about data adquisiction and process. In the last
> days when a lot of data (10>-->20 rec/sec. is inserted the processes
> that are reading gets records that not correspond with the statement
> that are executing.
>
> p.e:
> The process 'A' reads data with type = A
> SELECT * FROM data_collected where type = A order by id.
>
> id is indexed.
> Looking the logs the process 'A' process data with type 'B' or 'C' or
> 'D' and of course "A".
The type field looks like a char(1) so a value to test against it should
be quoted:
SELECT * FROM data_collected where type = 'A' order by id
As you present it, your query will look for a column called "a" and
compare "type" to "a" for each row. If there is no column "a", I have
no idea what else might be wrong.
--
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight http://www.lfix.co.uk/oliver
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