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Commita6949ca

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doc: Clarify CREATE TABLESPACE documentation
Be more specific about when and how to create the directory and whatpermissions it should have.Discussion:https://www.postgresql.org/message-id/flat/5ca60e1a-26f9-89fd-e912-021dd2b8afe2%40gmail.com
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‎doc/src/sgml/ref/create_tablespace.sgml

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@@ -92,7 +92,8 @@ CREATE TABLESPACE <replaceable class="parameter">tablespace_name</replaceable>
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<listitem>
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<para>
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The directory that will be used for the tablespace. The directory
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should be empty and must be owned by the
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must exist (<command>CREATE TABLESPACE</command> will not create it),
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should be empty, and must be owned by the
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<productname>PostgreSQL</productname> system user. The directory must be
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specified by an absolute path name.
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</para>
@@ -137,15 +138,23 @@ CREATE TABLESPACE <replaceable class="parameter">tablespace_name</replaceable>
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<title>Examples</title>
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<para>
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Create a tablespace <literal>dbspace</literal> at <literal>/data/dbs</literal>:
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To create a tablespace <literal>dbspace</literal> at file system location
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<literal>/data/dbs</literal>, first create the directory using operating
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system facilities and set the correct ownership:
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<programlisting>
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mkdir /data/dbs
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chown postgres:postgres /data/dbs
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</programlisting>
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Then issue the tablespace creation command inside
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<productname>PostgreSQL</productname>:
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<programlisting>
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CREATE TABLESPACE dbspace LOCATION '/data/dbs';
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</programlisting>
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</para>
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<para>
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Createa tablespace<literal>indexspace</literal> at <literal>/data/indexes</literal>
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owned by user <literal>genevieve</literal>:
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To createa tablespaceowned by a different database user, use a command
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like this:
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<programlisting>
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CREATE TABLESPACE indexspace OWNER genevieve LOCATION '/data/indexes';
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</programlisting></para>

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