Nested child filters should be an attestable error

[leoyvens]

Right now a query such as:

{
  marketHourlySnapshots(where: {market_: {inputToken_: {symbol_not: "GHO"}}}) {
    market {
      inputToken {
        symbol
      }
  }
}

Will result in the error Store error: query execution failed: Child filters can not be nested, which is not attestable according to QueryExecutionError::is_attestable. We should make this attestable so the gateway can report it back to users.

[compojoom]

So is this a bug, or a missing feature?

[azf20]

hey @compojoom a bit of both depending on the use case