amaliujia commented on a change in pull request #2107:
URL: https://github.com/apache/calcite/pull/2107#discussion_r474301415
##########
File path: core/src/test/resources/sql/sub-query.iq
##########
@@ -1761,9 +1761,10 @@ select sal from "scott".emp e
!ok
EnumerableCalc(expr#0..4=[{inputs}], expr#5=[NOT($t4)], expr#6=[IS NOT
NULL($t4)], expr#7=[OR($t5, $t6)], expr#8=[IS NOT TRUE($t7)], SAL=[$t1],
$condition=[$t8])
- EnumerableHashJoin(condition=[=($2, $3)], joinType=[left])
- EnumerableCalc(expr#0..7=[{inputs}], EMPNO=[$t0], SAL=[$t5], DEPTNO=[$t7])
- EnumerableTableScan(table=[[scott, EMP]])
+ EnumerableMergeJoin(condition=[=($2, $3)], joinType=[left])
Review comment:
Top-down optimization could fix this problem though (which is not
enabled by default). The top-down opt can enforce collations by inserting Sort.
----------------------------------------------------------------
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.
For queries about this service, please contact Infrastructure at:
[email protected]
