DDS14 — DDS 04-04-12 Appendix B, C

Filters and Queries are not compile-time checked and are too
heavy

The 04-04-12 DDS document proposes a subset of SQL for defining filters
andqueries.

The filter/query expressions are passed into the corresponding methods
as type "string".

First, this means that conforming implementations need to provide an SQL
expression parser/evaluator - a fairly complex piece of software.
Second, since the expressions are given as strings, checking them at
compile time is not straight-forward.

We request the Revision Task Force to reconsider this design decision
in favor of less heavyweight approaches that allow for compile-time
checks.

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