Feature request: atomic update operations

[zd4y]

It would be nice to have something similar to this sql: UPDATE balancesEntity SET balance = balance + delta.

This would allow me to have a cached balance entity (instead of fetching a full list of transactions and calculating the balance each time) while avoiding race conditions

[nezaj]

Something we definitely want to do! A few pieces we need to implement before we do atomic operations but will update this thread once we get to it!