zhong.zhu created KYLIN-5747:
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Summary: Calcite constant folding, adding strings to numbers,
results not as expected when multiple plus signs are used together
Key: KYLIN-5747
URL: https://issues.apache.org/jira/browse/KYLIN-5747
Project: Kylin
Issue Type: Bug
Affects Versions: 5.0-beta
Reporter: zhong.zhu
Assignee: zhong.zhu
Fix For: 5.0.0
Phenomenon:
When more than one plus sign is used in a row and the parameters on both sides
of the plus sign are constants, the result is not as expected
'1' + 3 + 3 → 7 (correct)
'1' + 3 + '3' → 4.03 (wrong result)
'1' + '3' + 'a' → error
When multiple plus signs are used in a row, and the arguments on both sides of
the plus sign are constants, and the first plus sign results in null, the use
of plus signs in a row is not supported.
e.g. 'q' + 1 + 1 -> error
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