#36607 [NEW]: default_prefetch problem w/ dbLinks

From: Date: Fri, 03 Mar 2006 19:13:26 +0000
Subject: #36607 [NEW]: default_prefetch problem w/ dbLinks
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-93897@lists.php.net to get a copy of this message 
From:             jreed at myers dot com
Operating system: Linux - 386
PHP version:      5.1.2
PHP Bug Type:     OCI8 related
Bug description:  default_prefetch problem w/ dbLinks

Description:
------------
When oci8.default_prefetch is set to anything but zero, executing a SQL
statement that uses a dbLink and only returns a single row causes Apache
to seg fault.  If oci8.default_prefetch is set to zero then it works fine.
 This problem only seems to occur if you do a SELECT *.  If you identify
the exact columns to select then it works fine.  Also, the same statement
works fine, even with SELECT *, if you connect to the database directly. 
It only fails if accessing through a dbLink.

Reproduce code:
---------------
$sql = "
select
    *
from
    my_schema.my_table@my_db_link
where
    table_id = $some_id
";
$stmt = ociparse($conn, $sql);
ociexecute($stmt, OCI_DEFAULT);
ocifetchinto($stmt, $row, OCI_ASSOC);
ocifreestatement($stmt);


Expected result:
----------------
$row is a populated associative array with all the columns from the table
row requested.

Actual result:
--------------
Apache seg faults immediately after the ociexecute() call.

-- 
Edit bug report at http://bugs.php.net/?id=36607&edit=1
-- 
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=36607&r=trysnapshot44
Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=36607&r=trysnapshot51
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=36607&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=36607&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=36607&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=36607&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=36607&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=36607&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=36607&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=36607&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=36607&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=36607&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=36607&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=36607&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=36607&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=36607&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=36607&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=36607&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=36607&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=36607&r=mysqlcfg

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