SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList (children 1)
      Identifier t1.c1
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t1
   Function and (children 1)
    ExpressionList (children 2)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier t1.c2
       Literal UInt64_10
     Function not (children 1)
      ExpressionList (children 1)
       Function exists (children 1)
        ExpressionList (children 1)
         Subquery (children 1)
          SelectWithUnionQuery (children 1)
           ExpressionList (children 1)
            SelectQuery (children 3)
             ExpressionList (children 1)
              Asterisk
             TablesInSelectQuery (children 1)
              TablesInSelectQueryElement (children 1)
               TableExpression (children 1)
                TableIdentifier t2
             Function equals (children 1)
              ExpressionList (children 2)
               Identifier t1.c1
               Identifier t2.c1
