how can add an extra select in this query?

Question

i've three tables related.

images: id | filename | filesize | ...

nodes: image_id | tag_id

tags: id | name

And i'm using this query to search images containing x tags

SELECT images.* FROM images 
INNER JOIN nodes ON images.id = nodes.image_id 
WHERE tag_id IN (SELECT tags.id FROM tags WHERE tags.tag IN ("tag1","tag2")) 
GROUP BY images.id HAVING COUNT(*)= 2

The problem is that i need to retrieve also all tags contained by the retrieved image, and i need this in the same query.

This the actual query wich search retrieve all tags contained by the image:

SELECT tag FROM nodes 
JOIN tags ON nodes.tag_id = tags.id 
WHERE image_id = images.id and nodes.private = images.private 
ORDER BY tag

How can i mix this two to have only one query?

I need all image table in the results plus the tags of the image. Like: id filename filesize tags

Maybe if is possible concat tags.

Answer 1

Something like this perhaps?

SELECT i.id, t.name
FROM images i
    INNER JOIN nodes n ON n.image_id = i.id
    INNER JOIN tags t ON t.id = n.tag_id
WHERE i.id IN
(
    SELECT nodes.image_id 
    FROM nodes
        INNER JOIN tags ON tags.id = nodes.tag_id
    WHERE tags.name IN ('tag1', 'tag2')
)

Answer 2

And this ?

SELECT tag FROM nodes 
JOIN tags ON nodes.tag_id = tags.id 
WHERE image_id = images.id 
AND nodes.private = images.private 
AND image_id in (
   SELECT images.id FROM images 
   INNER JOIN nodes ON images.id = nodes.image_id 
   WHERE tag_id IN (SELECT tags.id FROM tags WHERE tags.tag IN ("tag1","tag2")) 
   GROUP BY images.id HAVING COUNT(*)= 2)
ORDER BY tag