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Add Trino 397 release notes
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colebow committed Sep 21, 2022
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Expand Up @@ -10,6 +10,7 @@ Release notes
.. toctree::
:maxdepth: 1

release/release-397
release/release-396
release/release-395
release/release-394
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57 changes: 57 additions & 0 deletions docs/src/main/sphinx/release/release-397.md
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# Release 397 (21 Sep 2022)

## General

* Fix incorrect parsing of invalid values in cast from `varchar` to `timestamp`. ({issue}`14164`)
* Fix potential incorrect results for queries with a partitioned output which
doesn't depend on any column data. ({issue}`14168`)
* Fix `EXPLAIN (TYPE IO)` query failure for certain queries on empty tables. ({issue}`10398`)

## Security

* Add support for multiple recipients with JWT authentication. ({issue}`13442 `)
* Fix OAuth 2.0 token refresh causing JWT authentication failure. ({issue}`13575`)

## JDBC driver

* Fix potential memory leak when cancelling statements. ({issue}`14176`)

## Delta Lake connector

* Rename the `parquet.experimental-optimized-writer.enabled` configuration
property and `experimental_parquet_optimized_writer_enabled` session property
to `parquet.optimized-writer.enabled` and `parquet_optimized_writer_enabled`,
respectively. ({issue}`14137`)

## Hive connector

* Rename the `parquet.experimental-optimized-writer.enabled` configuration
property and `experimental_parquet_optimized_writer_enabled` session property
to `parquet.optimized-writer.enabled` and `parquet_optimized_writer_enabled`,
respectively. ({issue}`14137`)
* Improve performance when querying JSON data and Hive S3 Select pushdown is
enabled. ({issue}`14040`)
* Improve planning performance when querying tables in the Glue catalog that
contain a large number of columns. ({issue}`14206`)
* Allow reading from a partitioned table after a column's data type was changed
from `decimal` to `varchar` or `string`. ({issue}`2817`)
* Fix query failure when reading from a Hive view and
`hive.hive-views.run-as-invoker` and `hive.hive-views.legacy-translation` are
both enabled. ({issue}`14077`)

## Iceberg connector

* Improve performance of queries that contain predicates involving `date_trunc`
with an `hour` unit on `date`, `timestamp`, or `timestamp with time zone`
partition columns. ({issue}`14161`)
* Improve performance of reads after a `DELETE` removes all rows from a file. ({issue}`14198`)
* Reduce query latency when using a Glue catalog for metadata. ({issue}`13875`)
* Fix materalized views temporarily appearing empty when a refresh is about to
complete. ({issue}`14145`)
* Fix potential table corruption when changing a table before committing to the
Hive metastore has completed. ({issue}`14118`)

## SPI

* Replace `DictionaryBlock` constructors with a factory method. ({issue}`14092`)
* Replace `RunLengthEncodedBlock` constructors with a factory method. ({issue}`14092`)

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