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IITDBGroup
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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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Enable provenance rewrite for algebra graphs (rather than trees)
#72
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lordpretzel
opened
3 years ago
lordpretzel
commented
3 years ago
need to keep track of which operators have already been rewritten (maintain a mapping =op -> rewritten op=)
when a child that has already been rewritten should be rewritten again, just look up the rewriting
need to rename operators though.