FilterQuery for HubDB Table : HubL

[#1]

Hello all,

I am trying the filter my HubDB table based on the Page Title. There is a column page_title in my table. And the code I am using is 

{% set pagetitle = page_meta.html_title %}

{% for row in hubdb_table_rows(000000, "&page_title=pagetitle") %}

...................

{% endfor %}

How can I use pagetitle as a dynamic variable and not static text itself? Right now it tries to find a value 'pagetitle' instead on actual HTML Page title.

Thank you for your help in advance!