Timeseries of a single entity

Do you want to request a feature or report a bug?

Feature request of kinds, but just looking for some answers.

Subgraph has supported timetravel queries that allow you to retrieve entities at particular block. I am looking for a way to get historical state of a singleton entity over a given block range. Use case being imagine you wanted to get a timeseries of total supply of ERC20, or chainlink's latest answer stored in a singleton entity to query a timeseries of oracle answer. I imagine there can be 2 ways this can be done:

1. Direct raw queries over postgres
2. Write a custom resolver

Would be helpful if someone can answer how I can go about doing both of these things.

Non è indicato alcun file o test. Inizia tracciando l’entry point esistente delle query timetravel, quindi confronta gli approcci PostgreSQL raw e custom-resolver descritti nell’issue; il lavoro sarebbe concluso con una risposta confermata da un maintainer oppure con un percorso di implementazione documentato per la cronologia di un singleton su un intervallo di blocchi.