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Commit d722927

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Clarify pg_dump -b documentation
The documentation around the -b/--blobs option to pg_dump seemed to imply that it might be possible to add blobs to a "schema-only" dump or similar. Clarify that blobs are data and therefore will only be included in dumps where data is being included, even when -b is used to request blobs be included. The -b option has been around since before 9.2, so back-patch to all supported branches. Discussion: https://postgr.es/m/20161119173316.GA13284@tamriel.snowman.net
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doc/src/sgml/ref/pg_dump.sgml

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@@ -138,8 +138,11 @@ PostgreSQL documentation
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<para>
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Include large objects in the dump. This is the default behavior
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except when <option>--schema</>, <option>--table</>, or
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<option>--schema-only</> is specified, so the <option>-b</>
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switch is only useful to add large objects to selective dumps.
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<option>--schema-only</> is specified. The <option>-b</>
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switch is therefore only useful to add large objects to dumps
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where a specific schema or table has been requested. Note that
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blobs are considered data and therefore will be included when
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--data-only is used, but not when --schema-only is.
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</para>
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</listitem>
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</varlistentry>

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