techdocsmith opened a new issue, #13307: URL: https://github.com/apache/druid/issues/13307
From @gianm : Think of a tuple sketch as a theta sketch plus an additional vector of numeric values associated with each item being added to the sketch. The items added to the sketch are counted, intersected, etc just like a theta sketch. Where it goes beyond the theta sketch is that you can get the mean, variance, sum of the fields in the vectors. For example: you might be adding user IDs to the theta sketch, and you might have a lifetime value for each user, and you might want to compute the average lifetime value for users matching a certain set of parameters. You can do this with tuple sketches. The added vector would be a 1-vector (lifetime value). > Is the use case comparable to quantile sketches? > Not really. It's more of an extension of theta sketches. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
