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# Release 451 (27 June 2024) | ||
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## General | ||
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* Add support for configuring a proxy for the S3 native filesystem with the | ||
`s3.http-proxy.username`, `s3.http-proxy.password`, | ||
`s3.http-proxy.non-proxy-hosts`, and `s3.http-proxy.preemptive-basic-auth` | ||
configuration properties. ({issue}`22207`) | ||
* Add support for the {func}`t_pdf` and {func}`t_cdf` functions. ({issue}`22507`) | ||
* Improve performance of reading JSON array data. ({issue}`22379`) | ||
* Improve performance of certain queries involving the {func}`row_number`, | ||
{func}`rank`, or {func}`dense_rank` window functions with partitioning and | ||
filters. ({issue}`22509`) | ||
* Fix error when reading empty files with the native S3 file system. ({issue}`22469`) | ||
* Fix rare error where query execution could hang when fault-tolerant execution | ||
is enabled. ({issue}`22472`) | ||
* Fix incorrect results for CASE expressions of the form | ||
`CASE WHEN ... THEN true ELSE false END`. ({issue}`22530`) | ||
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## Delta Lake connector | ||
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* Improve performance of reading from Parquet files with large schemas. ({issue}`22451`) | ||
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## Hive connector | ||
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* Improve performance of reading from Parquet files with large schemas. ({issue}`22451`) | ||
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## Hudi connector | ||
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* Improve performance of reading from Parquet files with large schemas. ({issue}`22451`) | ||
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## Iceberg connector | ||
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* Add support for incremental refresh for basic materialized views. ({issue}`20959`) | ||
* Add support for adding and dropping fields inside an array. ({issue}`22232`) | ||
* Add support for specifying a resource | ||
[prefix](https://github.com/apache/iceberg/blob/a47937c0c1fcafe57d7dc83551d8c9a3ce0ab1b9/open-api/rest-catalog-open-api.yaml#L1449-L1455) | ||
in the Iceberg REST catalog. ({issue}`22441`) | ||
* Add support for partitioning on nested `ROW` fields. ({issue}`15712`) | ||
* Add support for writing Parquet Bloom filters. ({issue}`21570`) | ||
* Add support for uppercase characters in the `partitioning` table property. ({issue}`12668`) | ||
* Improve performance of reading from Parquet files with large schemas. ({issue}`22451`) | ||
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## Kudu connector | ||
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* Add support for the Kudu `DATE` type. ({issue}`22497`) | ||
* Fix query failure when a filter is applied on a `varbinary` column. ({issue}`22496`) | ||
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## SPI | ||
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* Add a `Connector.getInitialMemoryRequirement()` API for pre-allocating memory | ||
during catalog initialization. ({issue}`22197`) |