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create table links ( id int primary key auto_increment ); insert into links values (1); create table blocks ( id int primary key auto_increment, link_id int, t text ); insert into blocks (link_id, t) values (1, 'Block1'), (1, 'Block3'), (1, 'Block3'); select * from blocks join ( select min(b.id) id from blocks b join links l on b.link_id = l.id where l.id = 1 ) fb on fb.id = blocks.id
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