SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Function array (children 1)
     ExpressionList (children 1)
      Function arrayMin (children 1)
       ExpressionList (children 2)
        Function lambda (children 1)
         ExpressionList (children 2)
          Function tuple (children 1)
           ExpressionList (children 1)
            Identifier x1
          Function multiply (children 1)
           ExpressionList (children 2)
            Identifier x1
            Function materialize (children 1)
             ExpressionList (children 1)
              Literal Int64_-1
        Function array (children 1)
         ExpressionList (children 2)
          Function toNullable (children 1)
           ExpressionList (children 1)
            Function toUInt256 (children 1)
             ExpressionList (children 1)
              Literal UInt64_0
          Function materialize (children 1)
           ExpressionList (children 1)
            Literal UInt64_4
    Function arrayMin (children 1)
     ExpressionList (children 1)
      Function array (children 1)
       ExpressionList (children 1)
        Function arrayMin (children 1)
         ExpressionList (children 1)
          Literal Array_[UInt64_0]
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_aggregation_array
   ExpressionList (children 2)
    Function arrayAvg (children 1)
     ExpressionList (children 1)
      Literal Array_[UInt64_1]
    Function array (children 1)
     ExpressionList (children 2)
      Literal UInt64_0
      Function toUInt256 (children 1)
       ExpressionList (children 1)
        Literal UInt64_8
   Set
