USER MANUALS

What Is New in Denodo Lakehouse Accelerator 2.0.0

This page lists the main enhancements of the Denodo Lakehouse Accelerator 2.0.0 for Denodo 9.

General

  • Embedded MPP has been renamed to Denodo Lakehouse Accelerator to better reflect its role and value within modern data architectures.

  • Adopted semantic versioning starting with version 2.0.0, replacing the legacy date-based versioning scheme to improve release tracking and industry alignment.

  • The Denodo Lakehouse Accelerator 2.0.0 includes the Presto C++ engine, referred to as Presto on Velox, designed to deliver a significant performance boost for intensive workloads.

Presto

  • Upgrade to Presto 0.296, introducing several Iceberg enhancements:

    • MERGE command support for Iceberg tables when using the standard Java engine.

    • Support for basic INSERT operations on Iceberg tables for the Presto on Velox (C++) engine.

  • Added new configuration properties to allow for advanced optimization of the Presto engine.

  • Fixed an error when running ANALYZE on Iceberg tables using the timestamptz type.

Hive Metastore

  • Disabled the hive.stats.autogather option to prevent unnecessary metadata requests and reduce overhead on partitioned directories.

Helm and Kubernetes

  • Added runAsUser and fsGroup settings for all cluster pods to ensure compliance with restricted Kubernetes security policies.

  • Removed the deprecated presto.memoryPerNode property from values.yaml.

  • Removed the deprecated postgresql.version15BackupWarning property from values.yaml.

Security

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