On Thursday, December 7, 2017, Peter Eisentraut < peter.eisentr...@2ndquadrant.com> wrote:
> On 12/6/17 19:03, Joshua D. Drake wrote: > > > > > How does that work? Is it using one of the hidden columns on a row? > > It means that for example if an update record is produced, the entire > row is included in the record as the key. > > IOW, IIUC, whether defined or not the user data portion of the table must, as a whole, provide a natural unique key if you are going to use logical replication. If two records only differ in their OID (or maybe ctid?) value you will have problem. David J.
