Display values of special variables used in Query

In example my current query looks like:

SELECT node.title AS node_title, node.nid AS nid FROM node node  INNER JOIN flag_content flag_content_node ON node.nid = flag_content_node.content_id AND (flag_content_node.fid = 4 AND flag_content_node.uid = ***CURRENT_USER*** AND flag_content_node.sid = ***FLAG_CURRENT_USER_SID***) WHERE (node.status = 1 OR (node.uid = ***CURRENT_USER*** AND ***CURRENT_USER*** <> 0) OR ***ADMINISTER_NODES*** = 1) AND (node.type in ('ckan_package'))

There are too many variables used like: CURRENT_USER, ADMINISTER_NODES, FLAG_CURRENT_USER_SID, etc. (sometimes even more)
What's sense to have this query if I can't use it by copying and pasting it into my sql browser to debug it. For sure nobody wants to read them, especially if they are sometimes 20 lines long or more.
My proposition is to include values of those variables above (as separate row), or in the brackets, like:
uid = 1 (***CURRENT_USER***) OR uid = ***CURRENT_USER*** (1)