doc: Document factorial function
This has existed for a very long time, equivalent to the ! and !!
operators, but it was never documented.
Reviewed-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Discussion: https://www.postgresql.org/message-id/flat/6ce1df0e-86a3-e544-743a-f357ff663f68%402ndquadrant.com
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/4c5cf5431410f8e28fb855c892cb2880649df850
Modified Files
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doc/src/sgml/func.sgml | 17 +++++++++++++++++
1 file changed, 17 insertions(+)