anchor.diff:  [source, clojure]
   ----
   (-> (dsl/create-sequence "testseq")
  -    (fmt/get-sql))
  +    (fmt/sql))
   ;; => "create sequence \"testseq\""
   ----
   
  
positive.code: (-> (dsl/select-one)
      (dsl/from '("book" "b")
                '("article" "a"))
      (fmt/get-sql))
  ;; => "select 1 from book \"a\", article \"b\""
  ----
  
  
negative.code: ----
  (-> (dsl/delete :t1)
      (dsl/where "id = 1")
      (fmt/sql))
  ;; => "delete from t1 where (id = 1)"
  ----
  
  