Pavel Stehule wrote: > > > > OK, how do we even explain this idea in the FAQ. It pulls 20 random > > values from 1 to 10000? That seems pretty hard to code to me. Where do > > you get the 10000 number from? How do you know you will hit a match in > > 20 tries? > > > > Number 10000 you have to store in application .. it's magic constant. > It similar our statistics. And sometimes you have to actualise it. > This is stochastic methods, so it's possible so it doesn't return any > value, and you have to repeat it. Using this method expect knowledge > about generating random numbers. This method is far to ideal, but on > databases with big traffic only this is usable.
OK, but this is clearly something I can't just throw into the FAQ and expect people to figure it out, and going into major detail to explain it in the FAQ isn't logical either. -- Bruce Momjian <[EMAIL PROTECTED]> http://momjian.us EnterpriseDB http://postgres.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---------------------------(end of broadcast)--------------------------- TIP 7: You can help support the PostgreSQL project by donating at http://www.postgresql.org/about/donate
