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To: pgsql-docs@lists.postgresql.org
Cc: pramodsavant2001@gmail.com
Subject: Mathematical Functions and Operators
Date: Sun, 08 Sep 2024 04:43:01 +0000
Message-ID: <172577058189.711.5933453138059481244@wrigleys.postgresql.org> (raw)
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/16/functions-math.html
Description:
Typically, exponentiation (which is represented here by ^) is a
right-associative operation. This means that the expression 2 ^ 3 ^ 3 should
be interpreted as
2 ^ (3 ^ 3) rather than (2 ^ 3) ^ 3.
Correct Interpretation (right-associative):
2 ^ 3 ^ 3 is interpreted as 2 ^ (3 ^ 3), which equals 2 ^ 27 = 134217728.
However, the example provided assumes left-associative behavior:
Incorrect Interpretation (left-associative):
2 ^ 3 ^ 3 is incorrectly interpreted as (2 ^ 3) ^ 3 = 512.
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Subject: Re: Mathematical Functions and Operators
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