validator self delegation query

[fedekunze]

Summary

Add support for querying a validator self delegation percentage

Problem Definition

I'd like to query what's the validator self delegation percentage to know which validator has more skin in the game.

Proposal

• Add a SelfDelegation property on the Validator struct to display the current self delegation of a validator. Updated at every endBlock (if power changes)

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For Admin Use

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[alexanderbez]

I perhaps will be a useful feature to add these queries to the REST interfaces. I'm not sure we want to increase state storage for this though (i.e. we shouldn't add a field to the validator if we dont need to).

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[tac0turtle]

this is already possible by querying the validator itself. Don't think we need an extra query. Ill close this issue for now.

To add, with sql indexing of state landing soon (tm) queries like this won't be needed.