RE: {Spam?} RE: Q: IDS 11.5x - features..
Posted in 2009
> Date: Tue, 7 Jul 2009 22:13:32 +0100 > From: obnoxio@serendipita.com > CC: informix-list@iiug.org > Subject: Re: {Spam?} RE: Q: IDS 11.5x - features.. > > Ian Michael Gumby wrote: > > Well, I guess if you don't know the answer... what good are you? > > > > Ok, let me rephrase this... > > > > From what you said, SolidDB isn't planning to support TimeSeries data > > types. Most likely because DB2 doesn't support it either. :-( > > You make assumptions. Bad ones. > No. I'm going from what has been presented to the public. Until IBM states that SolidDB will support TS, then it won't. Also not sure that I want SolidDB because of costs.... > > Not a good thing if you want an in-memory copy of data that may contain > > time series. (Like collecting I-Pass data on a road way...) > > Because, of course, you HAVE to have it in memory, don't you? TS + RTL > could never cope ... *rolls eyes* > Sigh. Silly Clown. Yes TS + RTL can cope to a point, depending on how much memory and hardware you toss at it. Way back when, TS + RTL could handle 25K ticks/s per front end processor. You want more, you can scale by adding front end processors... to a point. 100K ticks per second would allow you to capture all of the open markets' transactions in real time, and then some. But that isn't the point. Using the RFID I-Pass data being captured, you have a couple of things... 1) The RFID Tag ID and of course the geopoint of where the sensor is located so that you can map the data. If you're mapping the flow of traffic, you're going to want to keep your map context in memory. So the RFID / geotag / timestamp also needs to be in memory as well as being flushed. I mean you'd create a TS for the geotag'ed receiver(s) at a point on the highway and then you'd have to look for the RFID tags when they get to either the next pay toll on the highway or exit. (There's more too it, but its one way to get a picture of how traffic is moving.) (Traffic cams and some software to count cars and speed as they pass through the camera's view is another, or you could have pressure senors in the road too.) But that's getting too specific of an example. > > Ok, so then the next question is if anyone knows if the TS data is > > stored in blobspace. > > Smart blob space. > K That is part of what I'm asking. > > Again besides Alan Caldera or Kevin Brown, who is intimate with TS? > > Can you not read a manual? Yes, but I'm asking who at IBM is actually playing in the datablade space. Surely not a surly wank like you. You're too busy dealing with customers... :-P The question I was going to ask is if its theorectically possible to pull a TS from blobspace and then put it in to a shared memory segment and then have another process outside of the database walk through the data. Of course there's the issue of synching the data in the shared memory segment and what's in the database. There's a couple of ways to do it, and I have to think about which is the better way. _________________________________________________________________ Windows Live™ SkyDrive™: Get 25 GB of free online storage. http://windowslive.com/online/skydrive?ocid=TXT_TAGLM_WL_SD_25GB_062009