postgresql - haskell-postgres --> connect parameter is not a Query -

my program:

import database.postgresql.simple  main :: io () main =   conn <- connect defaultconnectinfo     { connectuser = "postgres"       , connectpassword = "password"       , connectdatabase = "postgres"     }   execute conn "create table users (id int, fname varchar(80), lname varchar(80))" ()   close conn 

error:

couldn't match expected type ‘query’ actual type ‘[char]’     in second argument of ‘execute’, namely       ‘"create table users (id int, fname varchar(80), lname varchar(80))"’ 

does user need make above psql string query typed object , send parameter connect function? tutorial not written way error meaning otherwise.

from the docs:

to construct query, enable ghc's overloadedstrings language extension , write query normal literal string.

overloadedstrings let write appears string , have ghc auto-coerce appropriate type (bytestring, text, query). it's useful extension keep in toolbox.