Joshua Shinavier Networked Graphs Gregory Todd Williams 2

Question is for the Presentation: Joshua Shinavier Networked Graphs
Question is asked by: Gregory Todd Williams
The Question is: Does anything prevent a view from being defined as infinitely recursive, leading to a dataset that has no fixpoint? The paper briefly mentions in section 7 (Complexity) that they limit discussion to only construct patterns without blank nodes (required to create an infinite dataset), section 5 (Semantics) seems to imply that such models are allowed, yet the discussion seems to gloss over how the implementation deals with this (ignoring the problem by assuming a fixpoint will be reached eventually).

Question asked	Does anything prevent a view from being de … Does anything prevent a view from being defined as infinitely recursive, leading to a dataset that has no fixpoint? The paper briefly mentions in section 7 (Complexity) that they limit discussion to only construct patterns without blank nodes (required to create an infinite dataset), section 5 (Semantics) seems to imply that such models are allowed, yet the discussion seems to gloss over how the implementation deals with this (ignoring the problem by assuming a fixpoint will be reached eventually). ng a fixpoint will be reached eventually).
Question asked by	Gregory Todd Williams +
Question for the Presentation	Joshua Shinavier Networked Graphs +