[Dbappbuilder-relannounce] ANNOUNCE: Rel version 1.0.6 Beta released

[Rel a. list. <dba...@li...>]

This version of Rel -- an implementation of Date & Darwen's "Tutorial D"
database language -- is a minor release featuring two enhancements:

1. Previously, aggregate operator invocations like the following...

   SUM(sys.Catalog, CreationSequence)

   ...could only reference an attribute.  The following would not work:

   SUM(sys.Catalog, CreationSequence + 1)

   In this release, aggregate operator invocations may specify an
   expression.  Both of the above expressions will now work.

   This change is in accordance with the Tutorial D specification 
   found in Date & Darwen's "Database Explorations - Essays on 
   the Third Manifesto and Related Topics".

2. Short synonyms are now available for some common keywords.  
   RELATION may be specified as REL, TUPLE as TUP, INTEGER as 
   INT, RATIONAL as RAT, and BOOLEAN as BOOL.  This is also in
   accordance with "Database Explorations ..."

   Note that DEE and DUM have always been available as synonyms for 
   TABLE_DEE and TABLE_DUM, respectively.

For more information, or to download Rel, see
http://dbappbuilder.sourceforge.net/Rel.html