pengfei.zhan created KYLIN-5756:
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Summary: Concat string and number with '+' gives unexpected result
Key: KYLIN-5756
URL: https://issues.apache.org/jira/browse/KYLIN-5756
Project: Kylin
Issue Type: Improvement
Components: Query Engine
Affects Versions: 5.0-beta
Reporter: pengfei.zhan
Assignee: pengfei.zhan
Fix For: 5.0-beta
Concat string and number gives unexpected result.
For example:
1. concat constant with plus operator, gives unexpected result
{code:java}
1' + 3 + 3 // 7 (correct)
'1' + 3 + '3' // 4.03 (wrong result)
'1' + '3' + 'a' // error
{code}
2. concat string and number, the first '+' produces null
{code:java}
'q' + 1 + 1 // error
{code}
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