Hello,
I upgraded DBD::mysql from 2.9006-1 to 3.0006-1 and suddenly started
getting
screens full of errors like:
prepare_cached(SELECT * FROM foo) statement handle
DBIx::ContextualFetch::st=HASH(0x971cc80) still Active at
/usr/share/perl5/Ima/DBI.pm line 381
After some digging it seems that the new version of the DBD::mysql is
failing
to reset the Active attribute on the sth after fetching all the rows.
The
following test script shows this.
#!env perl
use strict;
use warnings;
use DBI;
my $dbh=DBI->connect(
'DBI:mysql:host=localhost;database=test',
'test' => '',
{ RaiseError => 1, PrintError => 1 }
);
my $sql = 'SELECT 1';
my $sth = $dbh->prepare_cached($sql);
print "Prepared active:",$sth->{Active},"\n";
$sth->execute;
print "Executed active:",$sth->{Active},"\n";
while ( $sth->fetchrow_hashref ) { }
print "Fetched active:",$sth->{Active},"\n";
# Prep again to see if we get Still Active warning
$sth = $dbh->prepare_cached($sql);
__END__
On a Debian System with
Linux jhary.itn.local 2.6.16-1-686 #1 Tue Mar 21 14:51:09 UTC 2006 i686
GNU/Linux
DBI 1.50
Perl v5.8.8 built for i486-linux-gnu-thread-multi
DBD::mysql 3.0006-1 or 3.0004-1
$ perl test-dbd-mysql.pl
Prepared active:
Executed active:1
Fetched active:1
prepare_cached(SELECT 1) statement handle DBI::st=HASH(0x82bb238) still
Active
at test-dbd-mysql.pl line 26
If I drop back to DBD::mysql 2.9006-1 it works again.
$ perl test-dbd-mysql.pl
Prepared active:
Executed active:1
Fetched active:
I can't test any other versions as the CPAN source won't complile on
this box
(Mysql deb doesn't seem to include mysql_config which the dbd make
wants)
and apt only offers me these versions.
Calling finish on the handle does reset the flag with any of the dbd
versions.
Playing with the mysql_server_prepare option doesn't seem to make any
difference.
Is anyone else seeing this? It seems odd that it didn't get spotted
through a
couple of release versions (although debian seem to be packaging the
developer
releases).
cheers,
mark
--
MARK ADDISON
WEB DEVELOPER
200 GRAYS INN ROAD
LONDON
WC1X 8XZ
UNITED KINGDOM
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