bright liao created KYLIN-4544:
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Summary: Kylin on Parquet不兼容LEFT JOIN
Key: KYLIN-4544
URL: https://issues.apache.org/jira/browse/KYLIN-4544
Project: Kylin
Issue Type: Bug
Components: Query Engine
Affects Versions: v4.0.0-beta
Reporter: bright liao
Fix For: v4.0.0-beta
select t.n,t1.n from (
select count(*) as n from dm.dm_bi_device_info_day where deal_date='20200527')
as t
LEFT JOIN (
select count(*) as n from dm.dm_bi_device_info_day where deal_date='20200526')
as t1
on 1=1
查询出错，但在3.0版本可以。
错误信息如下：
Error while applying rule OLAPJoinRule, args
[rel#234029:LogicalJoin.NONE.[](left=rel#234022:Subset#3.NONE.[],right=rel#234028:Subset#6.NONE.[],condition==(1,
1),joinType=left)] while executing SQL: "select * from (select t.n,t1.n from (
select count(*) as n from dm.dm_bi_device_info_day where deal_date='20200527')
as t LEFT JOIN ( select count(*) as n from dm.dm_bi_device_info_day where
deal_date='20200526') as t1 on 1=1) limit 50000"
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