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Generic Virtualization SQL

Issues:

  • this does not need to be done on-the-fly for every query:

    • on first sight: compute the mapping process and cache it

    • based on a query signature use cached process

    • can also be done at compilation time

  • can all possible TMQL statements be converted into their SQL equivalents?

    • probably, but the performance of the retrieval process might vary considerably

    • some statements may result in nested loops in which individual SELECT statements are executed

    • difficult-to-use SQL know-how (call it a research challenge)

  • TMCL and TMQL assumptions

    • machine can reason about TMQL statements

    • TMCL and TMQL are considerable compatible in their semantics

Robert Barta24 of 32
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