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docs: remove outdated note about unique indexes

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Patch by Josh Kupershmidt

Backpatch through 9.5
This commit is contained in:
Bruce Momjian
2015-08-31 17:05:23 -04:00
parent cf25b2a2f9
commit 049a7799df
1 changed files with 1 additions and 5 deletions
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doc/src/sgml/indices.sgml
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@ -655,11 +655,7 @@ CREATE UNIQUE INDEX <replaceable>name</replaceable> ON <replaceable>table</repla
<note> <note>
<para> <para>
The preferred way to add a unique constraint to a table is There's no need to manually
<literal>ALTER TABLE ... ADD CONSTRAINT</literal>. The use of
indexes to enforce unique constraints could be considered an
implementation detail that should not be accessed directly.
One should, however, be aware that there's no need to manually
create indexes on unique columns; doing so would just duplicate create indexes on unique columns; doing so would just duplicate
the automatically-created index. the automatically-created index.
</para> </para>