parser error?

  I have a table called "questionarios" (sorry, it's portuguese), and
its primary key is a field called "codquestionario". Why pgsql doesn't
"throw" an error when this query is executed?
  select * from questionarios q where questionarios.codquestionario = 1
  In my opinion, "questionarios" should not be valid in this query, only
"q", but for some reason the condition "questionarios.codquestionario"
just get ignored and all records are returned.
  Why??

-- 

Felipe Schnack
Analista de Sistemas
felipes@ritterdosreis.br
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Centro Universitário Ritter dos Reis
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