It seems to be deliberately undocumented. This might help a bit: https://code.kx.com/q/basics/exposed-infrastructure/ https://code.kx.com/q/basics/exposed-inf

It seems to be deliberately undocumented. This might help a bit: https://code.kx.com/q/basics/exposed-infrastructure/ https://code.kx.com/q/basics/exposed-infrastructure/ http://kparc.com/k.txt http://kparc.com/k.txt (Look up Q docs for monadic K operators by their english name)