Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Description
This PR adds support for reading and writing UUIDs in Iceberg and with Iceberg+Hive. In order to support this we also needed improvements to the parquet reader and writer for Parquet's UUID logical type.
Motivation and Context
Presto has type support for UUIDs. We should support reading and writing them in some of the connectors.
Impact
Test Plan
I also added a benchmark for reading and writing UUID types and compared it to our current LongDecimal benchmark to see the performance difference for another type which uses
FIXED_LENGTH_BYTE_ARRAY
as the underlying physical type.These were the microbenchmarks from my local machine on ARM using a build of Corretto JDK11 and with reader verification disabled
Contributor checklist
Release Notes
Please follow release notes guidelines and fill in the release notes below.