[HIVE-20712] HivePointLookupOptimizer should extract deep cases

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-1
• Assignee: Zoltan Haindrich
• Reporter: Zoltan Haindrich
• Created: 08/Oct/18 12:26
• Updated: 27/Feb/24 22:23
• Resolved: 12/Oct/18 10:22

Description

currently IN extraction stops at the first level; as a result for the following query, the nested INs are not closed back.

create table t(a integer);
create table t2(b integer);

insert into t values (1),(2),(3),(4);
insert into t2 values (1),(2),(3),(4);

explain
select * from t,t2 where
	a*a=b+3
	and
	a in (1,2,3,4)
	and
	b in (1,2,3,4)

	and (
		(a in (1,2) and b in (1,2) ) or 
		(a in (2,3) and b in (2,3) )
			)
	;

Issue Links

• relates to: HIVE-20704 Extend HivePreFilteringRule to support other functions
• relates to: HIVE-20296 Improve HivePointLookupOptimizerRule to be able to extract from more sophisticated contexts