On Fri, Jan 01, 2021 at 01:21:10PM -0800, Zhihong Yu wrote: > Krasiyan: > Happy New Year. > > For WinGetFuncArgInPartition(): > > + if (target > 0) > + step = 1; > + else if (target < 0) > + step = -1; > + else > + step = 0; > > When would the last else statement execute ? Since the above code is > for WINDOW_SEEK_CURRENT, I wonder why step should be 0.
If it does actually need step to be one of those three choices, it might be shorter (well, less branchy) to write as step = (target > 0) - (target < 0); Best, David. -- David Fetter <david(at)fetter(dot)org> http://fetter.org/ Phone: +1 415 235 3778 Remember to vote! Consider donating to Postgres: http://www.postgresql.org/about/donate