SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function multiIf (children 1)
     ExpressionList (children 5)
      Literal UInt64_1
      Function array (children 1)
       ExpressionList (children 2)
        Identifier col2
        Identifier col3
      Literal UInt64_1
      Function array (children 1)
       ExpressionList (children 2)
        Identifier col4
        Identifier col5
      Function array (children 1)
       ExpressionList (children 2)
        Literal \'foo\'
        Identifier col7
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier multi_if_check