Planner Costing Errors

TOAST access cost doesn't affect estimates

http://archives.postgresql.org/message-id/4ED68EEC.9030906@krogh.cc

http://archives.postgresql.org/message-id/CANxtv6XiuiqEkXRJU2vk=xKAFXrLeP7uVhgR-XMCyjgQz29EFQ@mail.gmail.com

http://archives.postgresql.org/message-id/C4DAC901169B624F933534A26ED7DF310861B363@JENMAIL01.ad.intershop.net

http://www.postgresql.org/message-id/CAGnEboiNaHPF5W=H8m0=4fZ_wr74CX2GuBx1bYVTGH9AzX4_Qw@mail.gmail.com [maybe]

Plan change causes volume of data to exceed server memory

http://archives.postgresql.org/message-id/4E04BB75.4070403@riskcontrollimited.com

http://archives.postgresql.org/message-id/4E09A389.80604@riskcontrollimited.com

Hash join sometimes hashes the wrong table

http://www.postgresql.org/message-id/D2BFB0D2-5EB3-4921-8B0B-C44402C9C03B@skiline.cc