On Sat, Oct 17, 2020 at 6:35 PM Ian Lawrence Barwick <barw...@gmail.com> wrote: > > [doc] improve tableoid description > > Hi > > Attached patch aims to improve the description of the tableoid system column > [1] > by: > > - mentioning it's useful for determining table names for partitioned tables as > well as for those in inheritance hierarchies
This looks fine. > - mentioning the possibility of casting tableoid to regclass (which is simpler > than the currently suggested join on pg_class, which is only needed if > the schema name is absolutely required) Mentioning casting to regclass is worthwhile but it's not performance efficient if there are many tableoids. In that case, joining with pg_class.oid is quite efficient. That line further suggests using regnamespace which is not as efficient as joining with pg_namespace.oid. But pg_namespace won't have as many entries as pg_class so casting to regnamespace might be fine. Should we suggest both the methods somehow? -- Best Wishes, Ashutosh Bapat
