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CREATE TABLE media_table ( `id` INTEGER, `options` VARCHAR(1) ); INSERT INTO media_table (`id`, `options`) VALUES ('1', 'a'), ('2', 'b'), ('3', 'c');
CREATE TABLE table_media_maps ( `maps_id` INTEGER, `media_id` INTEGER ); INSERT INTO table_media_maps (`maps_id`, `media_id`) VALUES ('1', '2'), ('2', '3');
CREATE TABLE maps_table ( `id` INTEGER, `title` VARCHAR(1), `type` VARCHAR(1) ); INSERT INTO maps_table (`id`, `title`, `type`) VALUES ('1', 'f', 'x'), ('2', 'g', 'x'), ('3', 'h', 'y'), ('4', 'z', 'x'), ('4', 'w', 'y');
SELECT media_t.id, media_t.options, GROUP_CONCAT( CASE WHEN maps_t.type = 'x' THEN maps_t.title END ORDER BY maps_t.title SEPARATOR ', ') as x, GROUP_CONCAT( CASE WHEN maps_t.type = 'y' THEN maps_t.title END ORDER BY maps_t.title SEPARATOR ', ') as y FROM media_table as media_t LEFT JOIN table_media_maps m_m_t ON media_t.id = m_m_t.media_id right JOIN maps_table as maps_t ON maps_t.id = m_m_t.maps_id GROUP BY media_t.id, media_t.options
id
options
x
y
null
null
z
h, w
2
b
f
null
3
c
g
null