In the Finder, how do you select Pages '09 from Pages 5.0 documents

Question

Pages 5.0 came pre-installed on my new iMac / Mavericks computer. Before that I had  worked with Word for Mac. After a while I discovered the now well-known flaws in Pages 5.0 . I read discussions on the internet from which I concluded I could better continue with Pages ’09 which I had available from another (legal) source but never used.
Pages ’09 appears to work fine for me but Pages 5.0 keeps interfering as being the standard program designated to open “all documents of this type” (Get Info / Command I). Thus, documents made and saved in Pages ’09, may be inadvertently saved in Pages 5.0. At least, this is what I think is happening. You cannot see which is which since both versions have the extension “pages”.
I have a saved-search result comprising all files with the “pages” extension and I want to select all Pages 5.0 documents therein and change the whole lot, if possible with one key stroke, to show that “all documents of this type” must be opened in Pages ’09. I cannot find the way to work this out. Who helps?

Answer 1

My personal experience is as follows:
   tag:Blue will find every document that has a blue tag, regardless of tag name.
   tag:Pages '09 will find only documents with this specific tag name.
The exception to the second example is when you have tagged a few files with a specific tag name, then revisit the Finder Preferences and decide to change the tag name in place. This forces the tag name to update to the new name on all of the files bearing the prior tag name, and these will be found in the new tag name search.
Tag colors but not tag names are available in Finder views of documents.
You can even create Finder Smart Folders that park in the left column of your Finder window. These have special search criteria built in such as all documents that have a tag containing the string, “Pages '09.” When you click on this Smart Folder, a Finder window appears with all of your Pages '09 documents shown, providing they are appropriately tagged beforehand. You would need to first enable the tag attribute.
OS X Mavericks: Create or Modify a Smart Folder
I type just an arbitrary letter to trigger the sub-toolbar in step 3. I then click the + symbol, and set Kind is document. I click the + symbol again, and this time, I ignore Last opened date and select Other... from the bottom of that selection list. Scroll down until you find the attribute Tags and then on the right, select it, so it will show in the menu. Click Ok. Now, click on the Last opened date and instead choose Tags matches Pages '09. Now, proceed with step 6. Change the name from Searching "your login directory" to an appropriate string that will fit in the left column of your Finder window, e.g. Pages 09 docs.
The application version that created the document is not stored in the Pages documents, and Apple has chosen to use the .pages extension, regardless of compatibility or application version. This means that neither Finder nor human eye can discern the version of Pages that created the document. The only way off that island is programmatically checking the document contents which differs slightly between Pages ’08, ’09, and v5.