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PGD: document compatibility with EPAS automatic partitioning #6289

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Nov 25, 2024
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PGD: document compatibility with EPAS automatic partitioning #6289

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18 changes: 18 additions & 0 deletions product_docs/docs/pgd/5.6/scaling.mdx
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Expand Up @@ -184,3 +184,21 @@ to enable autopartitioning on the given table. If autopartitioning is already
enabled, then no action occurs. Similarly, use
[`bdr.autopartition_disable()`](/pgd/latest/reference/autopartition#bdrautopartition_disable)
to disable autopartitioning on the given table.

## Restrictions on EPAS-native automatic partitioning

EPAS-native automatic partitioning is not supported on PGD.

If the PGD extension is active on an EPAS database, DDL commands to configure
EPAS automatic partitioning (`ALTER TABLE ... SET AUTOMATIC` and `ALTER TABLE ... SET INTERVAL`)
will be rejected.

Note that while it is possible to enable the PGD extension on an EPAS database
containing tables configured to use EPAS-native automatic partitioning, it
will not be possible to join further nodes using this node as a source node.

EPAS-native automatic partitioning can be disabled with one of the following
commands:

- `ALTER TABLE ... SET MANUAL` (for list partitioned tables)
- `ALTER TABLE ... SET INTERVAL ()` (for interval partitioned tables)