Sequenced temporal semantics - support hybrid rewrites that make use of native temporal operators where possible

IITDBGroup / gprom

GProM is a middleware that adds support for provenance to database backends.

http://www.cs.iit.edu/%7edbgroup/research/gprom.php

Apache License 2.0

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Sequenced temporal semantics - support hybrid rewrites that make use of native temporal operators where possible #42

Open lordpretzel opened 6 years ago

lordpretzel commented 6 years ago

For instance, Teradata supports sequenced temporal operators. Not all are correct, but we can make use of the ones that are, e.g., JOIN. This requires

1) A Teradata backend 2) Annotations for informing the Teradata SQL serializer to apply VALIDTIME SEQUENCED ... 3) in the temporal rewriter we now have the option to use our rewrite or mark an operator to use Teradata's native one

Check:

Does Teradata support the output of a query to be the input to VALIDTIME SEQUENCED???