(Removing users@. This only needs to be on one list.) Have you tried reading LatticeTest? You can see how APIs are used.
I added QuerySqlStatisticProvider recently. Maybe QuerySqlStatisticProvider.SILENT_CACHING_INSTANCE meets your purposes. Julian > On Dec 29, 2019, at 11:03 PM, JiaTao Tao <[email protected]> wrote: > > Hi, community > > I was investigating lattice recently and encountered some problems: > 1. Lattice requires the estimated number of rows of cuboids (tiles) for > optimization. I've found the method: `TileSuggester.StatisticsProviderImpl > # getRowCount`, `LatticeStatisticProvider # cardinality`, but I found that > they were not used finally, can anyone tell where the code I should dig. > > 2. Are there any designs on how to automatically recommend the lattice (how > to make the initial recommendation, how to adjust the existing lattices > based on the query frequency / existing lattice), I can not find them > included in JIRA or doc(https://calcite.apache.org/docs/lattice.html) > > Looking forward to hearing from you. > > -- > > Regards! > > Aron Tao
