CreateQuery t (children 2)
 Identifier t
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration x (children 2)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType String
    Literal \'Hello\'
   ColumnDeclaration y (children 2)
    DataType String
    Literal \'World\'
