GuangWeiHong created SPARK-25482:
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Summary: Fast equal can not check reuseSubquery when apply rule
about ReuseSubquery
Key: SPARK-25482
URL: https://issues.apache.org/jira/browse/SPARK-25482
Project: Spark
Issue Type: Bug
Components: Optimizer, SQL
Affects Versions: 2.3.1
Reporter: GuangWeiHong
the datasource filter should be push down, so there will have to subquery on
this query
select count(1) from lineitem where i_partkey > (select max(p_partkey)-1000
from part)
the opt rule about ReuseSubquery will be apply on subquery, but afterRule plan
will not be found by method fastEquals() and subquery will be executed two
times.
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