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Exponentiation example not clear
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* Exponentiation example not clear
@ 2021-07-18 14:45 PG Doc comments form <noreply@postgresql.org>
  2021-07-21 22:05 ` Re: Exponentiation example not clear Tom Lane <tgl@sss.pgh.pa.us>
  0 siblings, 1 reply; 2+ messages in thread

From: PG Doc comments form @ 2021-07-18 14:45 UTC (permalink / raw)
  To: pgsql-docs@lists.postgresql.org; +Cc: mdione@grulic.org.ar

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/13/functions-math.html
Description:

Quoting the docs:

Exponentiation (unlike typical mathematical practice, multiple uses of ^
will associate left to right)
2 ^ 3 → 8
2 ^ 3 ^ 3 → 512

You could probably add 

2 ^ (3 ^ 3) → 134217728 # 2 ^27


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* Re: Exponentiation example not clear
  2021-07-18 14:45 Exponentiation example not clear PG Doc comments form <noreply@postgresql.org>
@ 2021-07-21 22:05 ` Tom Lane <tgl@sss.pgh.pa.us>
  0 siblings, 0 replies; 2+ messages in thread

From: Tom Lane @ 2021-07-21 22:05 UTC (permalink / raw)
  To: mdione@grulic.org.ar; +Cc: pgsql-docs@lists.postgresql.org

PG Doc comments form <noreply@postgresql.org> writes:
> Quoting the docs:

> Exponentiation (unlike typical mathematical practice, multiple uses of ^
> will associate left to right)
> 2 ^ 3 → 8
> 2 ^ 3 ^ 3 → 512

> You could probably add 

> 2 ^ (3 ^ 3) → 134217728 # 2 ^27

Seems reasonable, done at

https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=7fa1e1ef741964eeb50f33d7c72622658...

			regards, tom lane





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