SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    QualifiedAsterisk (children 1)
     Identifier t1
   TablesInSelectQuery (children 3)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t0
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier t1
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier y
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier t2
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier y
   Function toLowCardinality (children 1)
    ExpressionList (children 1)
     Literal UInt64_1
