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help / color / mirror / Atom feedFrom: IVM Development Group via PostgreSQL Announce <[email protected]>
To: PostgreSQL Announce <[email protected]>
Subject: pg_ivm 1.13 released
Date: Mon, 20 Oct 2025 07:55:08 +0000
Message-ID: <[email protected]> (raw)
IVM Development Group is pleased to announce the release of [pg_ivm 1.13]( https://github.com/sraoss/pg_ivm/releases/tag/v1.13 ).
Changes since the v1.12 release include:
### New feature
* Add support for outer joins (Yugo Nagata)
Views that include outer joins are now supported, under the following restrictions:
- The target list of an outer join view must include all attributes used in join conditions.
- The target list of an outer join view cannot contain non-strict functions.
- Only simple equijoins are supported.
- The WHERE clause of an outer join view cannot contain non-null-rejecting predicates.
- Aggregates are not supported in outer join views.
- Subqueries are not supported in outer join views.
#### Acknowledgements
The development of the outer join support was sponsored by Mediapart.
### About pg_ivm
pg_ivm is an extension module that provides Incremental View Maintenance (IVM) feature.
Incremental View Maintenance (IVM) is a way to make materialized views up-to-date in
which only incremental changes are computed and applied on views rather than recomputing.
pg_ivm provides a kind of immediate maintenance, in which materialized views are updated
immediately after a base table is modified.
Source repository: [https://github.com/sraoss/pg_ivm](https://github.com/sraoss/pg_ivm)
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