Tom Lane wrote: > Bruce Momjian <[EMAIL PROTECTED]> writes: > > Another idea is whether a foreign key column should get extra > > statistics? > > In practice, both ends of an FK relationship have to be indexed, > so I don't see that we need any extra special case for that.
Do they? We don't create an index automatically when using REFERENCES. We do create an index for PRIMARY KEY. I was just wondering if the REFERENCES column is more sensitive to join usage and would benefit from more accurate statistics even if it doesn't have an index. -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
