This is expected; Bitmap (precisely count distinct) is more space-consuming than HLL. There is no a good solution I guess, this is a trade-off.
2018-04-08 11:01 GMT+08:00 Sonny Heer <[email protected]>: > Does changing only the count distinct measure from HLL to precisely make > the query slower? > > With HLL some of our queries were sub-second, but after moving to > precisely - the same queries are slow. Is this expected? How to fix? > > > Thanks > -- Best regards, Shaofeng Shi 史少锋
