SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 5)
    Identifier s
    Identifier arr
    Identifier a
    Identifier num
    Identifier mapped
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier arrays_test
    TablesInSelectQueryElement (children 1)
     ArrayJoin (children 1)
      ExpressionList (children 3)
       Identifier arr (alias a)
       Function arrayEnumerate (alias num) (children 1)
        ExpressionList (children 1)
         Identifier arr
       Function arrayMap (alias mapped) (children 1)
        ExpressionList (children 2)
         Function lambda (children 1)
          ExpressionList (children 2)
           Function tuple (children 1)
            ExpressionList (children 1)
             Identifier x
           Function plus (children 1)
            ExpressionList (children 2)
             Identifier x
             Literal UInt64_1
         Identifier arr
