Rename Variables¶

I know that we need to be able to assign varibles to columns returned by various primitive operations (SS.findTuples, and various StringPool operations). However for the vast majority of Tuples objects, a renameVariables(Constraint) operation is nonsense.

We need to either replace with an Annotation; attach it to Resolution (might be a problem with SP based results, as they are not resolutions atm); or change the function to act as a general 'rename' operation, that can be defaulted in AbstractTuples or similar.

_{original page by Andrae Muys}

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As I recall, renameVariables was something David Makespeace snuck in for efficiency's sake. It distressed me at the time because we'd just gone to considerable effort to rewrite Tuples to be immutable.

_{original comment by Simon Raboczi}