</para>

<para>

<command>CLUSTER</command> without any parameter reclusters all the

<command>CLUSTER</command> without a

<replaceable class="parameter">table_name</replaceable> reclusters all the

previously-clustered tables in the current database that the calling user

has privileges for. This form of <command>CLUSTER</command> cannot be

executed inside a transaction block.

<para>

Clustering a partitioned table clusters each of its partitions using the

partition of the specified partitioned index. When clustering a partitioned

table, the index may not be omitted.

table, the index may not be omitted. <command>CLUSTER</command> on a

partitioned table cannot be executed inside a transaction block.

</para>

</refsect1>