Weird behavior of CAST with 0 in rails - ruby-on-rails

Question

Sorry for long query but its what im working with.
I got this query in rails
#posts = Cama::PostType.first.posts.joins(:custom_field_values).where("(status = ?) AND (cama_custom_fields_relationships.custom_field_slug = ? AND
CAST(cama_custom_fields_relationships.value AS INTEGER) >= ? AND
CAST(cama_custom_fields_relationships.value AS INTEGER) <= ? ) OR
(cama_custom_fields_relationships.custom_field_slug = ? AND
CAST(cama_custom_fields_relationships.value AS INTEGER) >= ? AND
CAST(cama_custom_fields_relationships.value AS INTEGER) <= ? ) AND
(LOWER(title) LIKE ? OR LOWER(content_filtered) LIKE ?)","published", "filtry-
powierzchnia", params['size-start'].to_i, params['size-end'].to_i,"filtry-
cena", params['price-start'].to_i, params['price-end'].to_i
,"%#{params[:q]}%",
"%#{params[:q]}%").group("cama_posts.id").having("COUNT(cama_custom_fields_rel
ationships.objectid) >= 2")
that make this sql
CamaleonCms::Post Load (0.9ms) SELECT "cama_posts".* FROM "cama_posts"
INNER JOIN "cama_custom_fields_relationships" ON
"cama_custom_fields_relationships"."objectid" = "cama_posts"."id" AND
"cama_custom_fields_relationships"."object_class" = $1 WHERE
"cama_posts"."post_class" = $2 AND "cama_posts"."taxonomy_id" = $3 AND
((status = 'published') AND
(cama_custom_fields_relationships.custom_field_slug = 'filtry-powierzchnia'
AND CAST(cama_custom_fields_relationships.value AS INTEGER) >= 1 AND
CAST(cama_custom_fields_relationships.value AS INTEGER) <= 10000 ) OR
(cama_custom_fields_relationships.custom_field_slug = 'filtry-cena' AND
CAST(cama_custom_fields_relationships.value AS INTEGER) >= 0 AND
CAST(cama_custom_fields_relationships.value AS INTEGER) <= 10000000 ) AND
(LOWER(title) LIKE '%%' OR LOWER(content_filtered) LIKE '%%')) GROUP BY
cama_posts.id HAVING (COUNT(cama_custom_fields_relationships.objectid) >= 2)
ORDER BY "cama_posts"."post_order" ASC, "cama_posts"."created_at" DESC LIMIT
$4 OFFSET $5 [["object_class", "Post"], ["post_class", "Post"],
["taxonomy_id", 2], ["LIMIT", 6], ["OFFSET", 0]]
As you can see Im using CAST, I can't change column just to integer, because its CMS. I created custom_field that suppoust to be integer but table in db is still text so im forced to do it that way.
Now everything is ok if my
..CAST(cama_custom_fields_relationships.value AS INTEGER) >= 1..
but when this value will be 0
so when my query will look like
CamaleonCms::Post Load (0.9ms) SELECT "cama_posts".* FROM "cama_posts"
INNER JOIN "cama_custom_fields_relationships" ON
"cama_custom_fields_relationships"."objectid" = "cama_posts"."id" AND
"cama_custom_fields_relationships"."object_class" = $1 WHERE
"cama_posts"."post_class" = $2 AND "cama_posts"."taxonomy_id" = $3 AND
((status = 'published') AND
(cama_custom_fields_relationships.custom_field_slug = 'filtry-powierzchnia'
AND ****CAST(cama_custom_fields_relationships.value AS INTEGER) >= 0**** AND
CAST(cama_custom_fields_relationships.value AS INTEGER) <= 10000 ) OR
(cama_custom_fields_relationships.custom_field_slug = 'filtry-cena' AND
CAST(cama_custom_fields_relationships.value AS INTEGER) >= 0 AND
CAST(cama_custom_fields_relationships.value AS INTEGER) <= 10000000 ) AND
(LOWER(title) LIKE '%%' OR LOWER(content_filtered) LIKE '%%')) GROUP BY
cama_posts.id HAVING (COUNT(cama_custom_fields_relationships.objectid) >= 2)
ORDER BY "cama_posts"."post_order" ASC, "cama_posts"."created_at" DESC LIMIT
$4 OFFSET $5 [["object_class", "Post"], ["post_class", "Post"],
["taxonomy_id", 2], ["LIMIT", 6], ["OFFSET", 0]]
Im getting error:
ActionView::Template::Error (PG::InvalidTextRepresentation: ERROR: invalid input syntax for integer: "/media/1/asd.jpg"
: SELECT "cama_posts".* FROM "cama_posts" INNER JOIN "cama_custom_fields_relationships" ON "cama_custom_fields_relationships"."objectid" = "cama_posts"."id" AND "cama_custom_fields_relationships"."object_class" = $1 WHERE "cama_posts"."post_class" = $2 AND "cama_posts"."taxonomy_id" = $3 AND ((status = 'published') AND (cama_custom_fields_relationships.custom_field_slug = 'filtry-powierzchnia' AND CAST(cama_custom_fields_relationships.value AS INTEGER) >= 0 AND CAST(cama_custom_fields_relationships.value AS INTEGER) <= 10000 ) OR (cama_custom_fields_relationships.custom_field_slug = 'filtry-cena' AND CAST(cama_custom_fields_relationships.value AS INTEGER) >= 0 AND CAST(cama_custom_fields_relationships.value AS INTEGER) <= 10000000 ) AND (LOWER(title) LIKE '%%' OR LOWER(content_filtered) LIKE '%%')) GROUP BY cama_posts.id HAVING (COUNT(cama_custom_fields_relationships.objectid) >= 2) ORDER BY "cama_posts"."post_order" ASC, "cama_posts"."created_at" DESC LIMIT $4 OFFSET $5):
and #posts return it on the query lvl so its not error that occurs somewhere else.
I tried CASTing to numeric, same problem. It only happens when its starting condition, when there is another condition before it, it accepts 0 like in my example, the second condition after this one works with >= 0