On Saturday 22 July 2006 12:57, Dries Buytaert wrote:
I really like LRU conceptually, but I don't know how we'd implement it. If done in the database, we'd have to write the last-access-time back to the database each time an alias is accessed, doubling the number of queries (unless someone know of a portable update-on-access field in SQL?).
You'd only to that once in a while ... like, at most once every 10 minutes, you'd update the 'frequency counter' (or whatnot).
And otherwise you'd keep it where? -- Larry Garfield AIM: LOLG42 larry@garfieldtech.com ICQ: 6817012 "If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it." -- Thomas Jefferson