IVM Development Group is pleased to announce the release of [pg_ivm 1.6](
https://github.com/sraoss/pg_ivm/releases/tag/v1.6 ).
Changes since the v1.5.1 release include:
### New feature
* Add EXISTS clause support in IVM (Takuma Hoshiai)
Correlated subqueries using EXISTS in WHERE clause are supported.
### Bug fixes
* Prohibit types without default btree opclass in the target list (Yugo Nagata)
**Full Changelog**:
[https://github.com/sraoss/pg_ivm/compare/v1.5.1...v1.6](https://github.com/sraoss/pg_ivm/compare/v1.5.1...v1.6)
### 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)
