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1.0.0-rc
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wuputah authored Sep 13, 2023
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25 changes: 25 additions & 0 deletions CHANGELOG.md
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# CHANGELOG

## 1.0.0-rc

In addition to bug fixes, this release includes significant vectorization optimization for aggregates (eg.g COUNT and SUM), enabled new index types, and added `pg_hint_plan`.

* vectorization of direct aggregates ([#143][])
* fix an inefficiency with vacuum if there is only one stripe ([#143][])
* enable `O3` compilation optimizations ([#143][])
* disable parallelism for `CREATE TABLE ... AS` queries ([#138][])
* allow gin, gist, spgist, and rum indexes on columnar tables ([#133][])
* add [pg_hint_plan][] extension ([#134][])
* extensions are now installed during the build process using pgxman ([#137][])
* bugfix: `columnar.alter_table_set_access_method` should correctly disallow conversion of heap tables that have foreign keys ([#136][])
* bugfix: crash when using `explain` when cache is enabled ([#125][])
* bugfix: cache could evict a chunk currently in use ([#142][])

[#143]: https://github.com/hydradatabase/hydra/pull/143
[#138]: https://github.com/hydradatabase/hydra/pull/138
[#133]: https://github.com/hydradatabase/hydra/pull/133
[#134]: https://github.com/hydradatabase/hydra/pull/134
[#136]: https://github.com/hydradatabase/hydra/pull/136
[#125]: https://github.com/hydradatabase/hydra/pull/125
[#137]: https://github.com/hydradatabase/hydra/pull/137
[#142]: https://github.com/hydradatabase/hydra/pull/137
[pg_hint_plan]: https://github.com/ossc-db/pg_hint_plan

## 1.0.0-beta

Columnar-optimized vacuuming allows columnar tables to be compacted after updates and deletes without full rewrite, which will also improve peformance after vacuum. Auto-vacuum support combines recent inserts into a single stripe. A new column cache makes JOIN queries more efficient. Vector similarity search and data types are now available via pgvector.
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2 changes: 1 addition & 1 deletion VERSION
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1.0.0-beta
1.0.0-rc

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