Use of table access methods (TAMs) in PGD
=========================================

PGD 5.0 supports two table access methods (TAMs) released with EDB
Postgres 15.0. These two TAMs were certified and are allowed in PGD 5.0:

-  Auto cluster \* Ref data

Any other TAM is restricted until certified by EDB. If you’re planning
to use any of the TAMs on a table, you need to configure that TAM on
each participating node in the PGD cluster. To configure auto cluster or
ref data TAM, on each node:

1. Update ``postgresql.conf`` to specify TAMs ``autocluster`` or
   ``refdata`` for the ``shared_preload_libraries`` parameter.

2. Restart the server and execute ``CREATE EXTENSION autocluster;`` or
   ``CREATE EXTENSION refdata;`` .

After you create the extension, you can use TAM to create a table using
``CREATE TABLE test USING autocluster;`` or
``CREATE TABLE test USING refdata;`` . These commands replicate to all
the PGD nodes. For more information on these table access methods, see
 :ref:`CREATE TABLE <CREATE TABLE>`  .