Req #52623 [Opn->Wfx]: PDO::MYSQL_ATTR_MAX_BUFFER_SIZE not supported in mysqlnd

Edit report at http://bugs.php.net/bug.php?id=52623&edit=1 ID: 52623 Updated by: andrey@php.net Reported by: gasper dot kozak at gmail dot com Summary: PDO::MYSQL_ATTR_MAX_BUFFER_SIZE not supported in mysqlnd -Status: Open +Status: Wont fix Type: Feature/Change Request Package: MySQL related Operating System: any PHP Version: 5.3SVN-2010-08-17 (SVN) Block user comment: N New Comment: This constant is not defined when mysqlnd is enabled because it makes no sense for mysqlnd. mysqlnd allocates buffers for the data as big as needed. With libmysql PDO_MYSQL needs to allocate some buffer and hope that the data will fit in. Previous Comments: ------------------------------------------------------------------------ [2010-08-17 12:17:53] gasper dot kozak at gmail dot com Description: ------------ Seems as if mysqlnd driver doesn't support PDO::MYSQL_ATTR_MAX_BUFFER_SIZE constant. In pdo_mysql.c (from svn http://svn.php.net/repository/php/php- src/branches/PHP_5_3/ext/pdo_mysql/pdo_mysql.c), I can see: #ifndef PDO_USE_MYSQLND REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_MAX_BUFFER_SIZE", (long)PDO_MYSQL_ATTR_MAX_BUFFER_SIZE); ... #endif So, this constant (and some others) are only defined when mysqlnd isn't the active driver. Test script: --------------- echo PDO::MYSQL_ATTR_MAX_BUFFER_SIZE; Expected result: ---------------- Output 1005 Actual result: -------------- Fatal error: Undefined class constant 'MYSQL_ATTR_MAX_BUFFER_SIZE' in php shell code on line 1 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=52623&edit=1