Hello Christopher,
The first thing to set is
WHERE condition, I have tried something like this:
DocumentID IN (SELECT DocumentID FROM CMS_DocumentTag WHERE TagID IN (SELECT TagID FROM CMS_Tag WHERE TagName = 'my_tag'))
and there is also necessary to add a Tag Fields into
Columns, so in my case related to news, it is:
NewsTeaser, NewsTitle, NewsSummary, NewsText, NewsReleaseDate, NodeAliasPath, DocumentURLPath, SiteName, NodeOwner, NodeAlias, Content, DocumentTags, DocumentID
I hope this example will help you.
Best regards,
Martin Danko