This was recently discussed on -docs and I believe a patch was applied to at least HEAD.
On Mon, Jan 30, 2006 at 10:33:35AM +0000, [EMAIL PROTECTED] wrote: > > The following bug has been logged online: > > Bug reference: 2223 > Logged by: > Email address: [EMAIL PROTECTED] > PostgreSQL version: 8.1 > Operating system: linux > Description: Misleading info in docs on volatility level of functions > Details: > > Hi, all! > The documentation on how to and why declare a function STABLE or IMMUTABLE > is very laconic. It makes clear what promises I make when determining the > volatility of my functions but it fails to point out what exactly I can > expect in turn for my promises. > See also the discussion on bug#2150 on the pgsql-bugs list. > Thanks for bothering. > > ---------------------------(end of broadcast)--------------------------- > TIP 9: In versions below 8.0, the planner will ignore your desire to > choose an index scan if your joining column's datatypes do not > match > -- Jim C. Nasby, Sr. Engineering Consultant [EMAIL PROTECTED] Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461 ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
