Well, there's FE/BE level batching/pipelining already. Just no access to it from libpq.
Oh, really. The Bind ('B') appears to take one set of parameter values, not multiple sets (array). Anyway, I had to say "I want batch update API in libpq" to use it in ODBC and ECPG.
Right, and there's no protocol level support for array-valued batches.
You can, however, omit Sync from between messages and send a series of protocol messages, like
