SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayShiftLeft (children 1)
     ExpressionList (children 3)
      Literal Array_[\'a\', \'b\', \'c\', \'d\', \'e\']
      Literal UInt64_3
      Literal \'foo\'