ESQL: return number of docs/bytes read as part of the response #124776
Description
Description
Similar to the search API, ESQL could return the number of docs (and/or bytes) read from disk after successfully completing a query. This would help the user in understanding how expensive a query both during authoring and query execution.
There are some nuances in terms of getting accurate information across the entire system and how efficient this can be which should influence the final information returned.