Hello :) With pg 8.1.3 + slony 1.1.5, I've just noticed this in all of 
our 4 slon daemons:

2006-06-16 10:21:58 BST DEBUG2 remoteWorkerThread_2: SYNC 1325363 processing
2006-06-16 10:21:58 BST DEBUG2 remoteWorkerThread_2: syncing set 2 with 
8 table(s) from provider 2
2006-06-16 10:21:58 BST DEBUG2 remoteWorkerThread_2: syncing set 1 with 
80 table(s) from provider 2
2006-06-16 10:21:58 BST DEBUG2 remoteHelperThread_2_2: 0.021 seconds 
delay for first row
2006-06-16 10:21:58 BST DEBUG2 remoteHelperThread_2_2: 0.023 seconds 
until close cursor
2006-06-16 10:21:59 BST ERROR remoteWorkerThread_2: "insert into 
"public"."Hotel" 
("ID","GroupID","Name","Address1","CityText","PostCode","ReservationTel","ReservationContact","Website","StarRating","TotalRooms","Created","ReservationEmail","CountryID","ReservationTelInt","Language","VatNumber","CurrencyID","Longitude","Latitude","TypeID","StatusID","PasswordPlain","FriendlyName","Promotion","CommissionLevel","PgpEmail","Freesale") 
values ('94445','15075','Hotel & Spa Cala del P?,'Av. Cavall Bernat, 
160','Platja D''Aro (Costa Brava)','17250','+34972652363','Nuria 
Arias-Paz','http://www.euro-mar.com','5*','52','2006-06-15 
15:27:42.159912','nuria at euro-mar.com','62','+34 972652363','1 
','A58953506 ','EUR','0.00000','0.00000','1','1','','','1','12.00','f','f');
" ERROR: syntax error at or near "Av" at character 158
- qualification was:
2006-06-16 10:21:59 BST ERROR remoteWorkerThread_2: SYNC aborted

and the cause is almost certainly the odd '<?>' in the Hotel name, but 
my question is... how can I get Slony to resume so I can start looking 
for how this bad data got introduced in the first place?

Ideally I want to edit the repl. log and remove this offending 
character; I've checked sl_event on node 2 for ev_seqno 1325363 which 
shows me:

ev_origin | ev_seqno | ev_timestamp | ev_minxid | ev_maxxid | ev_xip | 
ev_type
-----------+----------+----------------------------+-----------+-----------+-------------------------------------+---------+----------+----------+----------+----------+----------+----------+----------+----------
2 | 1325363 | 2006-06-15 15:27:42.873419 | 659554956 | 659565084 | 
'659564897','659554956','659565053' | SYNC
|
But if I look for these three xid's in sl_log_1...

select * from _replication.sl_log_1 where log_xid in 
(659564897,659554956,659565053);

I am shown 52 rows that bear no resemblance to the INSERT above - what 
am I doing wrong here? :(

Cheers,
Gavin.