A string containing a comma-separated list of publications to check. An empty string (the UL_SYNC_ALL
macro) implies all tables except tables marked as no sync. A string containing just an asterisk (the UL_SYNC_ALL_PUBS macro) implies that all tables referred to in any publication.
Some tables may not be part of any publication and are not included if this value is *.
The maximum number of rows to count, limiting the amount of time taken by the call. A threshold of
0 corresponds to no limit (all rows that need to be synchronized are counted). A threshold of 1 can be used to quickly determine
if any rows need to be synchronized.