In commit ed8a7c6fcf9 we added some extra tests to pgbench, including this snippet:
\setshell two\ expr \ 1 + :one Unfortunately, this isn't portable, as I've just discovered at the cost of quite a bit of time. In particular, you can't assume expr is present and in the path on Windows. The Windows equivalent would be something like: \setshell two\ @set /a c = 1 + :one && echo %c% I propose to prepare a patch along these lines. Alternatively we could just drop it - I don't think the test matters all that hugely. cheers andrew -- Andrew Dunstan https://www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services