ITAGAKI Takahiro wrote: > Tom Lane <[EMAIL PROTECTED]> wrote: > > > >> Also, I added an experimental feature for btree indexes. It checks > > >> fragmentation factor of indexes. > > > The really serious problem with reporting this info via NOTICE is that > > there's no way for a program to get its hands on the info. The output > > tuple format needs to be extended instead. > > Ok, I added 'fragmented_percent' field to the output tuple. This > information will help us to decide when to do REINDEX. > However, it is only avaliable for btree index presently. Other indexes > should have equivalent information, but I don't know how to determine it.
BTW while you're handling this, why not change the function to use OUT parameters instead of having to CREATE TYPE to handle the return type? I think it is easier to handle ... One question I had was: in the percentage of fragmentation, is higher better or lower better? (I'm guessing lower is better, but this should be mentioned in the docs) > BTW, should we change VACUUM VERBOSE in the same way? If we do so, > autovacuum can handle the reports of VACUUM VERBOSE and plan when to > do VACUUM FULL, REINDEX and/or CLUSTER using the information. > Is this worth doing? You mean having VACUUM VERBOSE return a result set? -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
