The mysql client program has this feature that if it's run with its standard input not bound to a TTY, it automatically switches to batch mode.

Normally, when Emacs runs a process as a child, it'll set up a pseudo-tty to the child, which thinks it's talking to a regular TTY, and all is OK. Unfortunately, on Windows, this doesn't work, because there is no native pseudo-tty mechanism, so mysql runs in batch mode (no prompt, exit on first error, ...)

Also unfortunately, there is no switch available to disable this automatic switch to batch mode. Does anyone have a workaround, or a patch, for this?