create table foo (id, name)
create table foo_config (id, foo_id, key, value)
insert into foo (1, 'name1')
insert into foo (2, 'name2')
insert into foo (3, 'name3')
insert into foo_config (1, 1, 'key1', 'val1')
insert into foo_config (2, 1, 'key2', 'val2')
insert into foo_config (3, 1, 'key3', 'val3')
insert into foo_config (4, 2, 'key1', 'val1')
insert into foo_config (5, 3, 'key2', 'val2')
我如何查询所有 foo key1 = 'val1'
,在我们的例子中 foo:1 和 foo:2 将在此处列出。我应该如何为此建模/查询,感谢任何相同的指针。