New Features

This section includes new features and enhancements.

If a new feature or enhancement relates to a Zendesk request, the associated Zendesk reference number is displayed, for example (10118).

New Features in NuoDB 5.0

A sub-set of these features may be available in maintenance releases for prior versions.

Added new database process metrics

The new database metrics are:

  • CleanObjectsBytes

  • DirtyObjectsBytes

  • IncomingMessagesBytes

  • OutstandingObjectRequests

For more information, see Metrics Published by Database Processes.

Added logging category sql-results

The sql-results logging category logs query results to facilitate debugging and diagnostics. For more information, see Description of Logging Options.

Improved Storage Manager (SM) write throttle memory management

The SM write throttle mechanism was improved to use memory more efficiently allowing for greater overall SM reliability and resilience by reducing memory oscillation and out of memory related process shutdown events. (12214, 12237, 12238)

Added support for Java 17

The Administrative Process (AP) and JDBC driver can now use the Java 17 Runtime Environment. For more information, see System Requirements.

Optimized queries with parameterized LIKE predicates

Improved runtime performance for queries with parameterized LIKE predicates through outer to inner join optimization when applicable, and applied further optimizations if the parameter started without a wildcard.

Added JSON built-in functions (12047, 12052, 13049)

The following JSON built-in functions were added:

  • IS_VALID_JSON

  • JSON_CONTAINS

  • JSON_CONTAINS_PATH

  • JSON_EXTRACT

  • JSON_EXISTS

  • JSON_MERGE_PATCH

  • JSON_OBJECT

  • JSON_QUERY

  • JSON_UNQUOTE

  • JSON_VALUE

For more information, see SQL JSON String Functions.

Improved JSON function runtime performance

Added support for the RapidJSON library which delivers significantly improved runtime performance when executing JSON functions.

Added the REOPTIMIZE ALWAYS|NEVER query hint to allow application control of SQL recompilation behavior

For more information, see REOPTIMIZE Hint.

If deploying in Kubernetes, users can now specify the location of the nuoadmin.conf file

For more information, see NuoDB command start admin.

Added Kubernetes multi-tenancy support

Upgraded the Fabric8 Kubernetes client to version 5.12.2 in the NuoDB container image. The new support allows the creation of two NuoDB Admin domains in the same Kubernetes namespace.

Improved archive synchronization performance

Archive synchronization performance has been improved for a new or out-of-date archive. Database load imposed by archive synchronization has been reduced by:

  • Reducing writes to the journal on the SYNCING Storage Manager (SM)

  • Reducing memory overhead for archive synchronization on both the SYNCING SM and the RUNNING SMs

  • Reducing the processing of messages on both the SYNCING SM and the RUNNING SM

Added support for computed columns

For more information on computed columns and optionally how to use them to partition a table, see ALTER TABLE and CREATE TABLE.

Added a new Date/Time data type TIMESTAMP WITHOUT TIME ZONE

For more information, see SQL Date and Time Types.

Improved EXPLAIN PLAN readability for queries which include join operations

Improved the readability of explain plans for queries which include join operations by adding the average number of rows returned by every join operand after the first one.