IVM Development Group is pleased to announce the release of pg_ivm 1.2.
Changes since the v1.1 release include:
Add support for PostgreSQL 15 (Takuma Hoshiai, Yugo Nagata)
Add support for simple sub-queries in FROM clause (Takuma Hoshiai)
Simple sub-queries that do not contain DISTINCT or an aggregate function can be used in FROM clause. Sub-queries in a target-list or WHERE clause (including EXISTS sub-queries) are not allowed.
Add support for built-in min and max aggregate functions (Yugo Nagata)
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