What's New in This Release?

Certifications:

Certified with Red Hat Enterprise 7.3 (driver version 08.00.0074 (B0238, U0156))

Certified with Windows Server 2016 (driver version 08.00.0074 (B0238, U0156))

Enhancements

The driver has been enhanced to support connection failover and client load balancing when connecting to a cluster. You can enable this new functionality by specifying a comma-separated list of member nodes using the new Cluster Nodes (ClusterNodes) connection option. See Using Failover in a Cluster and Cluster Nodes for details.

The driver has been enhanced to include timestamp in the internal packet logs by default. If you want to disable the timestamp logging in packet logs, set PacketLoggingOptions=1. The internal packet logging is not enabled by default. To enable it, set EnablePacketLogging=1.

The driver has been enhanced to support the Duration data type, which maps to the SQL_VARCHAR ODBC type. See Data Types for details.

The driver has been enhanced to support all the data consistency levels for read and write operations that are supported by Apache Cassandra data stores. Data consistency levels are configured using the Read Consistency and Write Consistency connection options. For additional information, see Read Consistency and Write Consistency.

Changed Behavior

Java SE 7 has reached the end of its product life cycle and will no longer receive generally available security updates. As a result, the drivers will no longer support JVMs that are version Java SE 7 or earlier. Support for distributed versions of Java SE 7 and earlier will also end, including IBM SDK (Java Edition).

The following Windows platforms have reached the end of their product lifecycle and are no longer supported by the driver:

Windows 8.0 (versions 8.1 and higher are still supported)

Windows Vista (all versions)

Windows XP (all versions)

Windows Server 2003 (all versions)

Certified against Apache Cassandra versions 2.0, 2.1, 2.2, and 3.7.

Certified against DataStax Enterprise 4.7, 4.8, and 5.0.

Supports SQL read-write access to Apache Cassandra data sources. See Supported SQL Functionality for details.

Supports CQL Binary Protocol.

The driver supports the core SQL-92 grammar.

Support for all ODBC Core and Level 1 functions and some Level 1 and Level 2 features. See ODBC Compliance for details.

Supports user ID and password authentication. See Authentication Method for details.

Supports Cassandra data types, including the complex types Tuple, user-defined types, Map, List and Set. See Data Types for details.

Generates a relational view of Cassandra data. Tuple and user-defined types are flattened into a relational parent table, while collection types are mapped as relational child tables. See Complex Type Normalization for details.

Supports Native and Refresh escape clauses to embed CQL commands in SQL-92 statements. See Native and Refresh Escape Clauses for details.

Supports Cassandra's tunable consistency functionality with Read Consistency and Write Consistency connection options.

Supports the handling of large result sets with Fetch Size, Native Fetch Size, and Result Memory Size connection options.

Supports applications that do not support unbounded Cassandra data types through the Ascii Size , Decimal Precision , Decimal Scale , Varchar Size, and Varint Precision connection options.