| From: | Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com> |
|---|---|
| To: | PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | gamma() and lgamma() functions |
| Date: | 2024-07-01 10:33:35 |
| Message-ID: | CAEZATCXpGyfjXCirFk9au+FvM0y2Ah+2-0WSJx7MO368ysNUPA@mail.gmail.com |
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| Lists: | pgsql-hackers |
Attached is a patch adding support for the gamma and log-gamma
functions. See, for example:
https://en.wikipedia.org/wiki/Gamma_function
I think these are very useful general-purpose mathematical functions.
They're part of C99, and they're commonly included in other
mathematical libraries, such as the python math module, so I think
it's useful to make them available from SQL.
The error-handling for these functions seems to be a little trickier
than most, so that might need further discussion.
Regards,
Dean
| Attachment | Content-Type | Size |
|---|---|---|
| gamma-and-lgamma.patch | text/x-patch | 7.8 KB |
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