I need to write a utility to fetch large amounts of data (HTTP) then insert it into a Postgres DB, as JSON objects. IOW the data is unstructured and there will only be a single table, with the usual id/json fields.
There will be hundreds of millions of rows. Pretty much the sole criteria here for picking a library is the speed of bulk JSON insert. Based on that, any opinions of whether I should go with Diesel vs. sqlx vs. rust-postgres?
(This has to be done in a day or two so not a lot of time for experimentation.)