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nmadden on March 18, 2019 | parent | context | favorite | on: Introduction to Datalog

Great post! Still working through it, but there is a slight error in the nested diagram at the start. Relational algebra has set difference, which is akin to negation-as-failure, but it lacks recursion. So the positive Datalog and RA circles should overlap without either containing the other. See http://www.lifl.fr/%7Ekuttler/elfe/biblio/datalog-overview-g...

x775 on March 18, 2019 [–]

Hi there. Thanks so much for your feedback, and good catch! I will update the diagram accordingly.

x775 on March 19, 2019 | [–]

I can no longer edit the parent, but this has been updated. Thanks again!

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