SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function COUNT (children 1)
     ExpressionList (children 1)
      Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 4)
           Identifier table_lz4.id
           Identifier table_lz4.ui (alias ui1)
           Identifier table_gcd.id
           Identifier table_gcd.ui (alias ui2)
          TablesInSelectQuery (children 2)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier table_lz4
           TablesInSelectQueryElement (children 2)
            TableExpression (children 1)
             TableIdentifier table_gcd
            TableJoin (children 1)
             Function equals (children 1)
              ExpressionList (children 2)
               Identifier table_lz4.id
               Identifier table_gcd.id
   Function notEquals (children 1)
    ExpressionList (children 2)
     Identifier ui1
     Identifier ui2
