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Add Trino 400 release notes #14556

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Oct 12, 2022
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Add Trino 400 release notes #14556

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1 change: 1 addition & 0 deletions docs/src/main/sphinx/release.rst
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Expand Up @@ -10,6 +10,7 @@ Release notes
.. toctree::
:maxdepth: 1

release/release-400
release/release-399
release/release-398
release/release-397
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52 changes: 52 additions & 0 deletions docs/src/main/sphinx/release/release-400.md
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# Release 400 (12 Oct 2022)

## General

* Add output buffer utilization to `EXPLAIN ANALYZE VERBOSE`. ({issue}`14396`)
* Increase concurrency for large clusters. ({issue}`14395`)

## BigQuery connector

* Add support for [truncating tables](/sql/truncate). ({issue}`14494`)

## Delta Lake connector

* Prevent coordinator out-of-memory failure when querying a large number of
tables in a short period of time. ({issue}`14571`)

## Hive connector

* Reduce memory usage when scanning a large number of partitions, and add the
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`hive.max-partitions-for-eager-load` configuration property to manage the
number of partitions that can be loaded into memory. ({issue}`14225`)
* Increase the default value of the `hive.max-partitions-per-scan`
configuration property to `1000000` from `100000`. ({issue}`14225`)
* Utilize the `hive.metastore.thrift.delete-files-on-drop` configuration
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What does this mean? Did it exist but it was not being used? That would be a bug.

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It existed but was only being used for table drops, not partition drops.

property when dropping partitions and tables. Previously, it was only used
when dropping tables. ({issue}`13545`)

## Hudi connector

* Hide Hive system schemas. ({issue}`14510`)

## Iceberg connector

* Prevent table corruption when changing a table fails due to an inability to
release the table lock from the Hive metastore. ({issue}`14386`)
* Fix query failure when reading from a table with a leading double slash in the
metadata location. ({issue}`14299`)

## Pinot connector

* Add support for the Pinot proxy for controller/broker and server gRPC
requests. ({issue}`13015`)
* Update minimum required version to 0.10.0. ({issue}`14090`)

## SQL Server connector

* Allow renaming column names containing special characters. ({issue}`14272`)

## SPI

* Add `ConnectorAccessControl.checkCanGrantExecuteFunctionPrivilege` overload
which must be implemented to allow views that use table functions. ({issue}`13944`)