libingxin opened a new issue, #12734: URL: https://github.com/apache/druid/issues/12734
In mobile advertising, there are a large number of advertising events every day. In order to analyze the effect of advertising promotion, we will analyze: 1. Daily clicks and impressions 2. User registrations of one app 3. UV, seven-day retention 4. Multi-dimensional analysis, such as the distribution of people using different mobile phones We use Druid to analyze，Druid is an excellent OLAP databas，most of the metrics such as daily clicks, registration, and UV are no problem But the seven-day retention or multi-dimensional analysis metrics, it is difficult to analysis. So I want to write a Druid plug-in, using bitmap to analysis user seven-day retention and other multi-dimensional. The feature: 1. Metric: bitmap，store different user or device id(int type) 2. Post-aggregator：bitmap‘s cardinality 3. Post-aggregator：operation and between bitmaps 4. Post-aggregator：operation or between bitmaps 5. Post-aggregator：operation xor between bitmaps -- 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]
