Otis Gospodnetic wrote:
Because having small time units like milliseconds will result in Range query expanding to a large number of BooleanQueries, if you have a lot of documents with unique time stamps. Rounding the timestamp to minutes, hours, or days, can drastically reduce the number of unique time stamps, hence resulting in less BooleanQueries.
Cool, thanks. So DateField.dateToString is the best, most efficient way, correct?
It all depends. But if all you care about is year, month, day, it is _not_ the most efficient. DateField converts down to milliseconds, and is what Otis was referring to.
Erik
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