I can see exactly what you're doing like this
More photos from WhiteCheeks
SELECT *
FROM gallery2
WHERE topic_id="1395595"
UNION
SELECT *
FROM gallery2
WHERE topic_id="1471061"
UNION
SELECT *
FROM gallery2
WHERE topic_id="1391215"
UNION
SELECT *
FROM gallery2
WHERE topic_id="561320"
UNION
SELECT *
FROM gallery2
WHERE topic_id="1136941"
UNION
SELECT *
FROM gallery2
WHERE topic_id="1044009"
UNION
SELECT *
FROM gallery2
WHERE topic_id="695151"
UNION
SELECT *
FROM gallery2
WHERE topic_id="1052803"
UNION
SELECT *
FROM gallery2
WHERE topic_id="306494"
UNION
SELECT *
FROM gallery2
WHERE topic_id="50774"
UNION
SELECT *
FROM gallery2
WHERE topic_id="815847"
UNION
SELECT *
FROM gallery2
WHERE topic_id="1054303"
UNION
SELECT *
FROM gallery2
WHERE topic_id="669273"
UNION
SELECT *
FROM gallery2
WHERE topic_id="1063188"
UNION
SELECT *
FROM gallery2
WHERE topic_id="539604"
UNION
SELECT *
FROM gallery2
WHERE topic_id="957792"
