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doc: clarify how dropping of extensions affects dependent objs.

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Clarify that functions/procedures are dropped when any extension that
depends on them is dropped.

Reported-by: David G. Johnston

Discussion: https://postgr.es/m/CAKFQuwbPSHMDGkisRUmewopweC1bFvytVqB=a=X4GFg=4ZWxPA@mail.gmail.com

Backpatch-through: 13
This commit is contained in:
Bruce Momjian
2022-07-14 17:41:03 -04:00
parent 47ae6948f0
commit 5fe2d4c56e
3 changed files with 16 additions and 7 deletions
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6
doc/src/sgml/ref/alter_function.sgml
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@@ -160,8 +160,10 @@ ALTER FUNCTION <replaceable>name</replaceable> [ ( [ [ <replaceable class="param
<para>
This form marks the function as dependent on the extension, or no longer
dependent on that extension if <literal>NO</literal> is specified.
A function that's marked as dependent on an extension is automatically
dropped when the extension is dropped.
A function that's marked as dependent on an extension is dropped when the
extension is dropped, even if <literal>CASCADE</literal> is not specified.
A function can depend upon multiple extensions, and will be dropped when
any one of those extensions is dropped.
</para>
</listitem>
</varlistentry>