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-rw-r--r--doc/src/sgml/ref/pg_basebackup.sgml22
1 files changed, 18 insertions, 4 deletions
diff --git a/doc/src/sgml/ref/pg_basebackup.sgml b/doc/src/sgml/ref/pg_basebackup.sgml
index 32fa9f858ca..47dce43b194 100644
--- a/doc/src/sgml/ref/pg_basebackup.sgml
+++ b/doc/src/sgml/ref/pg_basebackup.sgml
@@ -169,12 +169,26 @@ PostgreSQL documentation
</varlistentry>
<varlistentry>
+ <term><option>-z</option></term>
+ <term><option>--gzip</option></term>
+ <listitem>
+ <para>
+ Enables gzip compression of tar file output, with the default
+ compression level. Compression is only available when using
+ the tar format.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><option>-Z <replaceable class="parameter">level</replaceable></option></term>
<term><option>--compress=<replaceable class="parameter">level</replaceable></option></term>
<listitem>
<para>
- Enables gzip compression of tar file output. Compression is only
- available when using the tar format.
+ Enables gzip compression of tar file output, and specifies the
+ compression level (1 through 9, 9 being best
+ compression). Compression is only available when using the tar
+ format.
</para>
</listitem>
</varlistentry>
@@ -393,11 +407,11 @@ PostgreSQL documentation
</para>
<para>
- To create a backup of the local server with one maximum compressed
+ To create a backup of the local server with one compressed
tar file for each tablespace, and store it in the directory
<filename>backup</filename>, showing a progress report while running:
<screen>
-<prompt>$</prompt> <userinput>pg_basebackup -D backup -Ft -Z9 -P</userinput>
+<prompt>$</prompt> <userinput>pg_basebackup -D backup -Ft -z -P</userinput>
</screen>
</para>