You can problably psychologically trick a potential reader into feeling the post is short.

There are two ways.

Add the test code and the solutions you already tried as sql scripts

This doesnt take much place and it also allows you to add some detailed comments there without blowing a reader off in your main post.

Split tekst of the post itself in two parts

Describe in the first post the problem, end with a note that details follow in following posts. Have these following posts ready as you want people to read them as one if they are interested in it.

This first post if recognised by someone as something he or she knows a lot about serves just that. Catch their attention and also invoke anyone with a similar problem. Once that happends, reading more is not an issue as it is part of solving the problem.