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Doc: fix incorrect bit-reversal in example of macaddr formatting.

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Will Mortensen (minor additional copy-editing by me)

Discussion: https://postgr.es/m/CAMpnoC5Y6jiZHSA82FG+e_AqkwMg-i94EYqs1C_9kXXFc3_3Yw@mail.gmail.com
This commit is contained in:
Tom Lane 2022-06-03 11:51:37 -04:00
parent de61a9cbaa
commit 54299b9ce7
1 changed files with 4 additions and 4 deletions
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doc/src/sgml/datatype.sgml
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@ -3819,13 +3819,13 @@ SELECT person.name, holidays.num_weeks FROM person, holidays
</para>
<para>
IEEE Std 802-2001 specifies the second shown form (with hyphens)
IEEE Standard 802-2001 specifies the second form shown (with hyphens)
as the canonical form for MAC addresses, and specifies the first
form (with colons) as the bit-reversed notation, so that
08-00-2b-01-02-03 = 01:00:4D:08:04:0C. This convention is widely
form (with colons) as used with bit-reversed, MSB-first notation, so that
08-00-2b-01-02-03 = 10:00:D4:80:40:C0. This convention is widely
ignored nowadays, and it is relevant only for obsolete network
protocols (such as Token Ring). PostgreSQL makes no provisions
for bit reversal, and all accepted formats use the canonical LSB
for bit reversal; all accepted formats use the canonical LSB
order.
</para>