Mysql PDO maximum LONGBLOB data length on fetch

Question

I insert about 1.1 Mb of Data into a Mysql Field of type LONGBLOB. This is far away from the maximum supported length of a LONGBLOB field.

The insert seems to work.

Answer 1

It was the MYSQL_ATTR_MAX_BUFFER_SIZE which is 1MB by default.

This fixed the issue:

    $pdo->setAttribute(PDO::MYSQL_ATTR_MAX_BUFFER_SIZE, 1024*1024*50);  // 50 MB