On Thursday November 16 2006 3:33 am, Richard Huxton wrote: > Ed L. wrote: > > One idea would be to partition the table some how such that > > the chunks getting vacuumed are much smaller and thus not > > such an impact. On the app side, I suppose we could break > > the table into multiple tables on some dimension (time) to > > make the vacuum impacts smaller. > > You're running on bigger datasets than I'm used to, but that > would be my approach. Did you notice the constraint > partitioning introduced in 8.1? > > http://www.postgresql.org/docs/8.1/static/ddl-partitioning.htm >l#DDL-PARTITIONING-CONSTRAINT-EXCLUSION Thanks for the tip. We have avoided use of inheritance in order to stay closer to the beaten path, but the partitioning implementation ideas are useful. Ed