Timeline for Count unique visitors by group of visited places
Current License: CC BY-SA 3.0
2 events
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| Jun 13, 2014 at 7:41 | comment | added | Mathieu | Indeed, I have finite visitors and finite places. I don't have so much places (approximately 60 for now, but it can grow to 200) but I have quite many visitors (estimated to 50 millions and this number could grow to 200 millions in the next months). I'll edit my question to add this information. What I will have to do with this solution is to count the number of unique visitor identifiers among the lists of visitors of every place. Is that correct? Will it be efficient with so much visitors? | |
| Jun 12, 2014 at 16:14 | history | answered | Mushy | CC BY-SA 3.0 |