Thread: Postgres 8.1.4 + PHP, hangs when querying more than 16 records!

OS: Fedora Core 5
PHP: PHP 5.1.4, PHP 5.1.6, and  PHP 4.4.4 (compiled with --with-pgsql and install as binaries using YUM)
Postgres 8.1.4

This scripts works:
---------------------------------------------------------------------------------
<?php
// Connecting, selecting database
$dbconn = pg_connect("host=localhost dbname=database user=web")
   or die('Could not connect: ' . pg_last_error());

// Performing SQL query
$query = 'SELECT * FROM foobar limit 16';

$result = pg_query($query) or die('Query failed: ' . pg_last_error());


// Printing results in HTML
echo "<table>\n";
while ($line = pg_fetch_array($result, null, PGSQL_ASSOC)) {
   echo "\t<tr>\n";
   foreach ($line as $col_value) {
       echo "\t\t<td>$col_value</td>\n";
   }
   echo "\t</tr>\n";
}
echo "</table>\n";

// Free resultset
pg_free_result($result);

// Closing connection
pg_close($dbconn);
?>
---------------------------------------------------------------------------------
This script hangs:

-----------------------------------------------------------------------------------
 <?php
 // Connecting, selecting database
 $dbconn = pg_connect("host=localhost dbname=database user=web")
    or die('Could not connect: ' . pg_last_error());

 // Performing SQL query
 $query = 'SELECT * FROM foobar limit 17';

 $result = pg_query($query) or die('Query failed: ' . pg_last_error());


 // Printing results in HTML
 echo "<table>\n";
 while ($line = pg_fetch_array($result, null, PGSQL_ASSOC)) {
    echo "\t<tr>\n";
    foreach ($line as $col_value) {
        echo "\t\t<td>$col_value</td>\n";
    }
    echo "\t</tr>\n";
 }
 echo "</table>\n";

 // Free resultset
 pg_free_result($result);

 // Closing connection
 pg_close($dbconn);
 ?>
-------------------------------------------------------------------------------------



The only difference is that in the first we limit to 16 records, in the latter, to 17 (and greater hangs as well). I
triedwith three different versions of PHP, as mentioned above (PHP 5.1.4, 5.1.6, & 4.4.4) from both Apache and from the
commandline. Attempted few times each when compiled versions and binary distributions via yum. All behave the same way.
Allhang above 17 records. 

Take care! Babak.

babak badaei wrote:
> OS: Fedora Core 5
> PHP: PHP 5.1.4, PHP 5.1.6, and  PHP 4.4.4 (compiled with --with-pgsql and install as binaries using YUM)
> Postgres 8.1.4
>
> This scripts works:
> ---------------------------------------------------------------------------------
> <?php
> // Connecting, selecting database
> $dbconn = pg_connect("host=localhost dbname=database user=web")
>    or die('Could not connect: ' . pg_last_error());
>
> // Performing SQL query
> $query = 'SELECT * FROM foobar limit 16';

<snip>

>  // Performing SQL query
>  $query = 'SELECT * FROM foobar limit 17';

That seems really weird.

If you run those through psql natively what happens?

--
Postgresql & php tutorials
http://www.designmagick.com/

Hi Chris, Run through the native client everything works fine. I know, its really strange. Any ideas?

----- Original Message ----
From: Chris <dmagick@gmail.com>
To: babak badaei <badaei@yahoo.com>
Cc: pgsql-php@postgresql.org
Sent: Wednesday, August 30, 2006 11:42:01 PM
Subject: Re: [PHP] Postgres 8.1.4 + PHP, hangs when querying more than 16 records!

babak badaei wrote:
> OS: Fedora Core 5
> PHP: PHP 5.1.4, PHP 5.1.6, and  PHP 4.4.4 (compiled with --with-pgsql and install as binaries using YUM)
> Postgres 8.1.4
>
> This scripts works:
> ---------------------------------------------------------------------------------
> <?php
> // Connecting, selecting database
> $dbconn = pg_connect("host=localhost dbname=database user=web")
>    or die('Could not connect: ' . pg_last_error());
>
> // Performing SQL query
> $query = 'SELECT * FROM foobar limit 16';

<snip>

>  // Performing SQL query
>  $query = 'SELECT * FROM foobar limit 17';

That seems really weird.

If you run those through psql natively what happens?

--
Postgresql & php tutorials
http://www.designmagick.com/

Have you tried with pdo?

$pdo = new PDO('pgsql:host=localhost;dbname=database','web');
$query = $pdo->query('SELECT * FROM foobar;');
$query->execute();
$data = $query->fetchAll(PDO::FETCH_OBJ);
print_r($data);

And have you tried not using other peoples packages but downloading
the source and compiling it?  I run PHP 5.1.4 and work with very
large data sets, though I've not upgraded to 5.1.6 yet.

Hope this helps,

Gavin


On Aug 31, 2006, at 12:42 AM, babak badaei wrote:

> Hi Chris, Run through the native client everything works fine. I
> know, its really strange. Any ideas?
>
> ----- Original Message ----
> From: Chris <dmagick@gmail.com>
> To: babak badaei <badaei@yahoo.com>
> Cc: pgsql-php@postgresql.org
> Sent: Wednesday, August 30, 2006 11:42:01 PM
> Subject: Re: [PHP] Postgres 8.1.4 + PHP, hangs when querying more
> than 16 records!
>
> babak badaei wrote:
>> OS: Fedora Core 5
>> PHP: PHP 5.1.4, PHP 5.1.6, and  PHP 4.4.4 (compiled with --with-
>> pgsql and install as binaries using YUM)
>> Postgres 8.1.4
>>
>> This scripts works:
>> ---------------------------------------------------------------------
>> ------------
>> <?php
>> // Connecting, selecting database
>> $dbconn = pg_connect("host=localhost dbname=database user=web")
>>    or die('Could not connect: ' . pg_last_error());
>>
>> // Performing SQL query
>> $query = 'SELECT * FROM foobar limit 16';
>
> <snip>
>
>>  // Performing SQL query
>>  $query = 'SELECT * FROM foobar limit 17';
>
> That seems really weird.
>
> If you run those through psql natively what happens?
>
> --
> Postgresql & php tutorials
> http://www.designmagick.com/
>
>
>
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 6: explain analyze is your friend

Hi Gavid, Thanks, no I have not tried PDO but I have compiled 3 different versions of PHP from source with similar
resultsas the 3 different versions from binary distribution. Same for Postgres (compiled from source and dropped-in
binarystuff) for two different versions. 

Thanks again! Babak.

----- Original Message ----
From: Gavin M. Roy <gmr@ehpg.net>
To: babak badaei <badaei@yahoo.com>
Cc: pgsql-php@postgresql.org
Sent: Thursday, August 31, 2006 8:55:01 AM
Subject: Re: [PHP] Postgres 8.1.4 + PHP, hangs when querying more than 16 records!

Have you tried with pdo?

$pdo = new PDO('pgsql:host=localhost;dbname=database','web');
$query = $pdo->query('SELECT * FROM foobar;');
$query->execute();
$data = $query->fetchAll(PDO::FETCH_OBJ);
print_r($data);

And have you tried not using other peoples packages but downloading
the source and compiling it?  I run PHP 5.1.4 and work with very
large data sets, though I've not upgraded to 5.1.6 yet.

Hope this helps,

Gavin


On Aug 31, 2006, at 12:42 AM, babak badaei wrote:

> Hi Chris, Run through the native client everything works fine. I
> know, its really strange. Any ideas?
>
> ----- Original Message ----
> From: Chris <dmagick@gmail.com>
> To: babak badaei <badaei@yahoo.com>
> Cc: pgsql-php@postgresql.org
> Sent: Wednesday, August 30, 2006 11:42:01 PM
> Subject: Re: [PHP] Postgres 8.1.4 + PHP, hangs when querying more
> than 16 records!
>
> babak badaei wrote:
>> OS: Fedora Core 5
>> PHP: PHP 5.1.4, PHP 5.1.6, and  PHP 4.4.4 (compiled with --with-
>> pgsql and install as binaries using YUM)
>> Postgres 8.1.4
>>
>> This scripts works:
>> ---------------------------------------------------------------------
>> ------------
>> <?php
>> // Connecting, selecting database
>> $dbconn = pg_connect("host=localhost dbname=database user=web")
>>    or die('Could not connect: ' . pg_last_error());
>>
>> // Performing SQL query
>> $query = 'SELECT * FROM foobar limit 16';
>
> <snip>
>
>>  // Performing SQL query
>>  $query = 'SELECT * FROM foobar limit 17';
>
> That seems really weird.
>
> If you run those through psql natively what happens?
>
> --
> Postgresql & php tutorials
> http://www.designmagick.com/
>
>
>
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 6: explain analyze is your friend


---------------------------(end of broadcast)---------------------------
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