InsertQuery   (children 2)
 Identifier t_vertical_merge_memory
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Identifier number
     Function arrayMap (children 1)
      ExpressionList (children 2)
       Function lambda (children 1)
        ExpressionList (children 2)
         Function tuple (children 1)
          ExpressionList (children 1)
           Identifier x
         Function repeat (children 1)
          ExpressionList (children 2)
           Literal \'a\'
           Literal UInt64_50
       Function range (children 1)
        ExpressionList (children 1)
         Literal UInt64_1000
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_3001
