The meta data is from an SQL 2012 Server.
I have posted alot more, find the whole list here.
Goto Definition or MetaData
-- check if we need to call sp_MSmakegeneration now. -- By default, we don't call MakeGeneration within 0.5 second from the last call -- In the future, we can change the waiting time by setting @wait parameter -- also, when we have generation 0 we need to call MakeGeneration in this sync create procedure sys.sp_is_makegeneration_needed @wait int = 1, -- default behavior is 500 millisecond, the @wait is in seconds so we use -1 special value for the default value. @needed int = 1 OUTPUT as declare @dt datetime , @dt2 datetime , @retcode smallint -- Security check exec @retcode = sys.sp_MSrepl_PAL_rolecheck if (@retcode <> 0) or (@@error <> 0) return 1 -- If we need to resolve conflicts on this replica we need to call sp_MSmakegeneration -- Check if any row was put in generation 0 as part of conflict resolution. -- note that changes on join filtered rows will result on generation 0 in MSmerge_contents table. if @wait <= 0 or @wait >= 2147483 -- if @wait is -1 (default value) or longer than the biggest value @waitinmilliseconds can hold, reset to 500 milliseconds. begin select @wait = 1 end if exists( select * from dbo.MSmerge_contents with (NOLOCK) where generation = 0) begin select @needed = 1 return end if exists( select * from dbo.MSmerge_tombstone with (NOLOCK) where generation = 0) begin select @needed = 1 return end -- obtain the last time MakeGeneration is called from sysmergesubscriptions -- if the last_makegeneration_datetime is all NULL, it means MakeGeneration has never happened. select @dt2 = max(last_makegeneration_datetime) from dbo.sysmergesubscriptions where db_name = db_name() and UPPER(subscriber_server) collate database_default = UPPER(@@servername) collate database_default if @dt2 is null begin select @needed = 1 return end set @dt = getdate() if datediff(dd, @dt2, @dt) = 0 begin if @wait > datediff(ss, @dt2, @dt) and 0 < datediff(ss, @dt2, @dt) begin select @needed = 0 return end end select @needed = 1 return