SQL:2003 Statistical functions - What are they? - Mailing list pgsql-hackers

I'm not sure this is the right group to ask this.  I see that the 8.2
notes say all SQL:2003 statistical functions are implemented in 8.2, but
I couldn't find a listing for those anywhere I looked.

For those who are clueless like me,  can someone provide a listing of
what these functions are?

Thanks,
Regina

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