Get out of the way of the where keyword
Get out of the way of the where keyword

Closes #52

ddrmanxbxfr/rust-postgres,sfackler/rust-postgres,achanda/rust-postgres,jmesmon/rust-postgres,jmesmon/rust-postgres,achanda/rust-postgres,tempbottle/rust-postgres,ddrmanxbxfr/rust-postgres,tempbottle/rust-postgres,sfackler/rust-postgres