MySQL correlated subquery in JOIN syntax

Question

I would like to provide a WHERE condition on an inner query by specifying innertable.id = outertable.id. However, MySQL (5.0.45) reports \"Unknown column \'outertable.id\' i

Answer 1

I would write it with multiple joins. When you say that it "would possibly incur additional overhead" that tells me that you haven't tested it to be sure. If you have decent indexes the joins should be pretty trivial.

This also shows just one of the pitfalls of the generic "hold everything" table design pattern.