Solid::DBD long support
=======================

There are two methods to handle LONG data:

1. You may use the LONG fields like the normal ones, provided you have 
   enough memory to fetch them and set $sth->{blob_size} to a value
   allowing the interface to fetch all the binary data.

2. Additional, starting with v0.04, you may read the data out of 
   a LONG column using the function blob_read(). 
   This allows to read the whole data in the LONG field from 
   a fetched row; each subsequent call to blob_read returns 
   another part of the data within the LONG column.
   
   Example: After executing this code fragment you will have the
            entire contents of column 34 of a fetched row in $data.
   
   my $data = "";
   my $offset = 0;
   my $chunk = "";
   while ($chunk = $sth->blob_read(34, $offset, 4096))
   	{
	$offset += length($chunk);
	$data .= $chunk;
	}

