mihaibudiu commented on code in PR #4361:
URL: https://github.com/apache/calcite/pull/4361#discussion_r2076547722
##########
core/src/test/resources/sql/planner.iq:
##########
@@ -128,7 +128,64 @@ EnumerableCalc(expr#0..2=[{inputs}], $f0=[$t1], $f1=[$t2])
EnumerableCalc(expr#0=[{inputs}], expr#1=[IS NOT NULL($t0)],
DEPTNO=[$t0], $condition=[$t1])
EnumerableValues(tuples=[[{ 10 }, { 10 }, { 20 }, { 30 }, { 30 }, {
50 }, { 50 }, { 60 }, { null }]])
!plan
+!set planner-rules original
+
+# [CALCITE-7000] Extend IntersectToSemiJoinRule to support n-way inputs
+!set planner-rules "-EnumerableRules.ENUMERABLE_INTERSECT_RULE,
+ -CoreRules.INTERSECT_TO_DISTINCT,
+ +CoreRules.INTERSECT_TO_SEMI_JOIN"
+select a from (values (1.0), (2.0), (3.0), (4.0), (5.0)) as t1 (a)
+intersect
+select a from (values (1), (2)) as t2 (a)
+intersect
+select a from (values (1.0), (4.0), (null)) as t3 (a);
++-----+
+| A |
++-----+
+| 1.0 |
++-----+
+(1 row)
+
+!ok
+
+EnumerableCalc(expr#0=[{inputs}], expr#1=[CAST($t0):DECIMAL(11, 1)], A=[$t1])
+ EnumerableNestedLoopJoin(condition=[OR(AND(IS NULL(CAST($0):DECIMAL(11, 1)),
IS NULL(CAST($1):DECIMAL(11, 1))), =(CAST($0):DECIMAL(11, 1),
CAST($1):DECIMAL(11, 1)))], joinType=[semi])
+ EnumerableAggregate(group=[{0}])
+ EnumerableHashJoin(condition=[=($1, $3)], joinType=[semi])
+ EnumerableCalc(expr#0=[{inputs}], expr#1=[CAST($t0):DECIMAL(11, 1) NOT
NULL], expr#2=[CAST($t1):DECIMAL(11, 1) NOT NULL], A=[$t1], A0=[$t2])
+ EnumerableValues(tuples=[[{ 1.0 }, { 2.0 }, { 3.0 }, { 4.0 }, { 5.0
}]])
+ EnumerableCalc(expr#0=[{inputs}], expr#1=[CAST($t0):DECIMAL(11, 1) NOT
NULL], expr#2=[CAST($t1):DECIMAL(11, 1) NOT NULL], A=[$t1], A0=[$t2])
+ EnumerableValues(tuples=[[{ 1 }, { 2 }]])
+ EnumerableCalc(expr#0=[{inputs}], expr#1=[CAST($t0):DECIMAL(11, 1)],
A=[$t1])
+ EnumerableValues(tuples=[[{ 1.0 }, { 4.0 }, { null }]])
+!plan
+!set planner-rules original
+# [CALCITE-7000] Extend IntersectToSemiJoinRule to support n-way inputs
+select a from (values (1.0), (2.0), (3.0), (4.0), (5.0)) as t1 (a)
+intersect
+select a from (values (1), (2)) as t2 (a)
+intersect
+select a from (values (1.0), (4.0), (null)) as t3 (a);
++-----+
+| A |
++-----+
+| 1.0 |
++-----+
+(1 row)
+
+!ok
+
+EnumerableIntersect(all=[false])
Review Comment:
yes, this looks good
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