nodecomment_page_count uses wrong SQL query.

this query failed in PostgreSQL because it lacks a GROUP BY clause which is required when using a ORDER BY:

SELECT COUNT(*) FROM node_comments nc INNER JOIN node n ON n.nid = nc.cid WHERE nc.thread <= '' AND n.status <> 0 AND n.nid != 122 AND nc.nid = 121 ORDER BY nc.thread ASC;

However, where counting here, not trying to retrive particular columns, so why are we even bothering with ordering the returned dataset. It merely slows the query.