Ladybridge releases QM 2.9-3

QM release 2.9-3 is now available for download from the OpenQM web site.

This release adds support for the PowerPC variant of the IBM RS6000 under AIX.

This release introduces distributed files that provide a view of multiple separate hashed files as though they were a single file. Uses of distributed files include improved query performance by working with a reduced data set, load balancing over multiple disks, avoiding operating system file size limits and geographical separation of data over multiple servers.

This release extends date and time handling to include support for applications that operate across multiple time zones. The QM Basic EPOCH() function can be used to return the current date and time in time zone independent epoch form. The E conversion code can be used to convert this to external form and vice versa. The time zone used by the E conversion is determined by the TIMEZOME private configuration parameter that may be updated for an individual QM session using the CONFIG command or the QM Basic SET.TIMEZONE statement. The default time zone is taken from the operating system TZ environment variable. As part of this development, the D conversion code has been extended to support two ISO 8601 date formats. There are several functions to convert between epoch values and traditional multivalue date/time values. Note that epoch handling is only fully supported in the Linux, FreeBSD and Mac versions of QM . AIX provides partial support. Windows support of time zones is very limited and cannot provide the full functionality of other platforms.

Where both ends of the connection support it, QMClient and QM Net now encrypt network traffic. As a consequence of this change, the qmclilib.o object module previously released on Linux, FreeBSD and Mac has been replaced with the libqmclient.a library. The only change required in non-Windows QMClient applications is to use this new library in place of the old qmclilib.o when linking the program. Existing programs will continue to run but will not encrypt network traffic.

More updates and features available at

Ladybridge Systems Ltd

Located in Northampton Northamptonshire.

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