New Features in Replication Server Version 15.0

Replication Server 15.0 introduces several new features and enhancements.

• Support for Longer Identifiers
  The limit of 30 bytes for selected database and replication object names (identifiers) is extended to 255 bytes for Replication Server version 15.0.
• New Datatype: bigint
  Replication Server 15.0 adds support for the bigint datatype, which is a fixed-width, 8-byte datatype.
• New Unsigned Integer Datatypes
  Replication Server version 15.0 supports four new unsigned integer datatypes.
• New Unicode Datatype: unitext
  Replication Server version 15.0 adds support for the unitext datatype. unitext is a variable-width, nullable Unicode datatype. Although independent of the text datatype, unitext mirrors its behavior, and can be used wherever text is used.
• Computed Columns Replication
  Computed columns allow you to create an expression and place the result of the expression in a table column.
• Encrypted Columns Replication
  Replication Server 15.0 supports replication of encrypted columns in Adaptive Server 15.0. Similar to Adaptive Server, Replication Server does not support encrypted columns that contain text and image data.
• Partitioned Tables Replication
  In Replication Server 15.0, partitioned tables introduced in Adaptive Server® Enterprise 15.0 are replicated in a way that is similar to nonpartitioned tables. The rs_truncate system function in LTL, and the rs_truncate function and function string in Replication Server have been extended to support partitioned tables.
• Larger Disk Partitions
  Replication Server version 15.0 extends the maximum disk partition size from 2GB to 1TB. The new limit is applicable after the Replication Server site version is updated to 15.0.
• Larger text and image Size
  In Replication Server 15.0, the rs_subcmp utility extends the maximum text and image size from 32KB to 2GB.
• Embedded Replication Server System Database
  You can create a route from a Replication Server with an Embedded Replication Server System Database (ERSSD), as long as both the source and the destination servers are version 15.0 or later.
• New Password Encryption Algorithm
  Replication Server 15.0 uses the FIPS-certified Advanced Encryption Standard (AES) algorithm to encrypt new Replication Server user passwords. The AES alogrithm uses the 128-bit encryption key and can be obtained from the Certicom Security Builder library.
• Mixed-Version Support Enhancement
  In mixed-version environments, interaction between Replication Servers of different versions is restricted to the capabilities of the oldest version. Information associated with new features may not be available to Replication Servers of earlier versions.
• New Interface for Monitors and Counters
  Replication Server 15.0 provides a new, simpler interface for monitoring the counters that provide performance information.
• Isolation Level Support
  Isolation levels let you control the degree to which data can be accessed by other users during a transaction. With version 15.0, Replication Server decouples isolation levels and serialization methods for the replicate data server, and enables all isolation levels for replicate data servers that Replication Server supports. In versions earlier than 15.0, Replication Server supported only isolation level 3.
• Bidirectional Replication Support for DDL in MSA
  You can configure multisite availability (MSA) to set up a two-way replication of data definition language (DDL) transactions between two Adaptive Server databases. In version 15.0, bidirectional DDL replication support in MSA environments is supported only for non-warm standby databases.
• Command Batching for Non-ASE Servers
  Replication Server 15.0 allows you to batch commands for non-ASE database servers. By batching commands, you may be able to achieve improved performance in Replication Server.
• SySAM License Management Changes
  The Sybase Software Asset Management (SySAM) implementation has changed for this version of Replication Server.