CloneSchema is the only caching as such. But materialized views are a form of caching — in fact, a huge generalization of caching. Rather than creating a table as a copy of a table, you can create a table as a copy of a query, and map any query that could use it onto that table. Using CloneSchema (or ArrayTable) you could store that data in memory, but you could use other table types to store the data in other places.
Julian > On Jul 4, 2017, at 7:39 PM, 魏阔 <[email protected]> wrote: > > Hi all: I see clone adaptor is an idea of cache strategy in calcite. Is > there any other cache strategies ? and what's the progress in developing more > sophisticated caching strategies?Is there any documents? > thanks!shanyao >
