It seems that currently when your using the pipeline feature that it uses $_GET .
$_GET is not available for use on my server . Is there a way to use pipeline with POST?
There isn't a method of doing that at the moment - but there is no reason why the pipelining method couldn't be modified to do that if you feel like a hack :-). You'd need to ensure that all the variables match exactly as before (length, sorting, filtering etc) before returning results from the cache, but it would certainly be possible.