Angela Maduko <ifymaduko@xxxxxxxxx> writes: > I am trying to write a join selectivity function for a user defined > operator. The available documentation does not exactly specify how to > go about this. Can anyone shed more light on this? There isn't a lot of documentation, no :-(. I would suggest looking over the existing selectivity functions (in src/backend/utils/adt/selfuncs.c). If you have specific questions, pghackers is probably the best place to ask them. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
