# [tmql-wg] TMQL, next round

Robert Barta rho at bigpond.net.au
Tue Mar 6 02:48:34 EST 2007

On Mon, Feb 26, 2007 at 07:10:23PM +1000, Robert Barta wrote:
> I will also post the above issues here, one by one. ......

OKidoki, maybe start with the first as it has a huge impact on the
implementation cost:

TMQL Issue: predefined data types

Impact on Language: very high
Background

At the moment, TMQL has a rather arbitrary choice of primitive data
types: integer, URIs, decimals, datetimes, most of them cloned from
the XML schema data types

http://www.w3.org/TR/xmlschema-2/datatypes.html#typesystem

The question is which of these should be in the final standard.

Structured Discussion

? should all types from XSD be understood?
+ very rich collection, strong big-vendor support
+ constants can be written 'naturally' (3 instead of "3"^xsd:integer)
=> also all XPath 2.0 functions and operators have to be supported
- very expensive to produce for small developers

Any thoughts?

\rho