seawinde opened a new pull request, #33362: URL: https://github.com/apache/doris/pull/33362
## Proposed changes Support query rewritting by nested materialized view. Such as `inner_mv` def is as following > select > l_linenumber, > o_custkey, > o_orderkey, > o_orderstatus, > l_partkey, > l_suppkey, > l_orderkey > from lineitem > inner join orders on lineitem.l_orderkey = orders.o_orderkey; the mv1_0 def is as following: > select > l_linenumber, > o_custkey, > o_orderkey, > o_orderstatus, > l_partkey, > l_suppkey, > l_orderkey, > ps_availqty > from inner_mv > inner join partsupp on l_partkey = ps_partkey AND l_suppkey = ps_suppkey; for the following query, both inner_mv and mv1_0 can be successful when query rewritting by materialized view，and cbo will chose `mv1_0` finally. > select lineitem.l_linenumber > from lineitem > inner join orders on l_orderkey = o_orderkey > inner join partsupp on l_partkey = ps_partkey AND l_suppkey = ps_suppkey > where o_orderstatus = 'o' AND l_linenumber in (1, 2, 3, 4, 5) ## Further comments If this is a relatively large or complex change, kick off the discussion at [[email protected]](mailto:[email protected]) by explaining why you chose the solution you did and what alternatives you considered, etc... -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
