Hierarchical taxonomy to show all child tags

hi All

I've been asked to post my feature request here/.
I think when a node is tagged with a child tag, the node should also be shown in the parent tag.
For example, if blog post "A" is tagged with the term "Banking" and blog post "B" is tagged with the term "Investment" and the term "Banking" is a parent of "Investment", then clicking on the "Banking" tag in Post "A" will display post "B" (as well as posts tagged with "Banking").

Somebody suggested a workaround to this and it works.
But shouldn't this be the default behavior? Something to consider in Drupal 7?

http://drupal.org/node/314585

Thank you.
cmgui

Hi All

I'm a newbie to Drupal.
What is the purpose of hierarchy in taxonomy?
I had thought that if a vocabulary is hierarchical, clicking on a higher-level tag will display all posts with that tag AND child tags.
For example, if blog post "A" is tagged with the term "Banking" and blog post "B" is tagged with the term "Investment" and the term "Banking" is a parent of "Investment", then clicking on the "Banking" tag in Post "A" will display post "B" (as well as posts tagged with "Banking").
But obviously, this is not the case.
It seems that the purpose of hierarchy in taxonomy is only to make it easier for the poster to select the tag (in the select menu) when he is creating the content. Is this the case?

Thank you.
Gui