Re: Different query results in psql and Perl DBI with Postgres 7.2.1 - Mailing list pgsql-sql

From Greg Sabino Mullane
Subject Re: Different query results in psql and Perl DBI with Postgres 7.2.1
Date
Msg-id 1e889f069f95de5a2abbb10bb4229457@biglumber.com
Whole thread Raw
In response to Re: Different query results in psql and Perl DBI with Postgres 7.2.1  (boyd <tbmoore@bealenet.com>)
List pgsql-sql
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Brendan LeFebvre writes:
> Even more perplexing: the "0E0" occurs ONLY when setting status to
> 'STORE', and not 100% of the time. (though it happens far more often
> than not.) It seems to operate in stretches, too: when I am getting
> 1-row updates back from the latter query type, it happens several
> times in succession.
"0E0" is perl's way of saying "0 but true", which means that the
statement succeeded, but did not return any rows. If it simply
returned a "0", we would not be able to differentiate between
an error (false) and no rows affected (0).
> Where do I even begin to attempt a diagnosis?
It looks as thogh the row you are trying to update does not
exist. Not much more advice is possible without seeing a more
complete sample of the code.
"boyd" writes:
> $info =~ s/0//g; # the get_info adds extraneous '0' to the version number
It is not extraneous: it is required per the ODBC spec. For a simpler
number, try using this:
my $pgversion = $dbh->{private_dbdpg}{server_version};
- --
Greg Sabino Mullane greg@turnstep.com
PGP Key: 0x14964AC8 200401111401
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