InsertQuery   (children 2)
 Identifier optimize_lazy_materialization_with_nullable_data_type
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 3)
     Identifier number
     Function if (children 1)
      ExpressionList (children 3)
       Function modulo (children 1)
        ExpressionList (children 2)
         Identifier number
         Literal UInt64_2
       Literal UInt64_2000
       Identifier number
     Function multiIf (children 1)
      ExpressionList (children 3)
       Function equals (children 1)
        ExpressionList (children 2)
         Function modulo (children 1)
          ExpressionList (children 2)
           Identifier number
           Literal UInt64_3
         Literal UInt64_0
       Literal \'aa\'
       Literal NULL
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 2)
         Literal UInt64_0
         Literal UInt64_1000
