SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 8)
    Identifier array
    Identifier d1
    Identifier a1
    Identifier a2
    Identifier a3
    Identifier a4
    Identifier a5
    Identifier a6
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier aliases_test
    TablesInSelectQueryElement (children 1)
     ArrayJoin (children 1)
      ExpressionList (children 1)
       Identifier a1 (alias a1)
