I have sent GSoC proposal (http://postgresql.nabble.com/GSoC-2015-proposal-Support-for-microvacuum-for-GiST-td5843638.html) about week ago and I haven't received any feedback. So I'm a bit confused. Is the idea of proposal not actual for community or maybe too small for GSoC project? I do want participate in GSoC, but without comments I can't understand what's wrong and improve the proposal.