I inserted the following query to the editor:

select topics.topicId, count(*) FROM posts
INNER JOIN topics ON topics.topicID = posts.topicId
GROUP BY topics.topicId;

This query shows how many posts there are for each topic in the database.
There are 10k topics so it should show that number of topics plus the 
correspondent number of posts. Unfortunately it's only showing the 
first 20 topics.

It works with Mysql Query Browser as well as Mysql CLI client but not 
with the embedded Netbeans query editor. 

-- Uncle Paulie