</listitem>

</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>

</para>

<para>

To create a backup of the local server with onemaximumcompressed

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>

printf(_(" -D, --pgdata=DIRECTORY receive base backup into directory\n"));

printf(_(" -F, --format=p|t output format (plain, tar)\n"));

printf(_(" -x, --xlog include required WAL files in backup\n"));

printf(_(" -Z, --compress=0-9 compress tar output\n"));

printf(_(" -z, --gzip compress tar output\n"));

printf(_(" -Z, --compress=0-9 compress tar output with given compression level\n"));

printf(_("\nGeneral options:\n"));

printf(_(" -c, --checkpoint=fast|spread\n"

" set fast or spread checkpointing\n"));

{"format",required_argument,NULL,'F'},

{"checkpoint",required_argument,NULL,'c'},

{"xlog",no_argument,NULL,'x'},

{"gzip",no_argument,NULL,'z'},

{"compress",required_argument,NULL,'Z'},

{"label",required_argument,NULL,'l'},

{"host",required_argument,NULL,'h'},

case'l':

label=xstrdup(optarg);

break;

case'z':

compresslevel=Z_DEFAULT_COMPRESSION;

compresslevel=1;/* will be rejected below */

break;

case'Z':

compresslevel=atoi(optarg);

if (compresslevel <=0||compresslevel>9)