xiong duan created CALCITE-6993:
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Summary: Enhance the digest of Sarg to show whether the collection
type is nullable
Key: CALCITE-6993
URL: https://issues.apache.org/jira/browse/CALCITE-6993
Project: Calcite
Issue Type: Bug
Reporter: xiong duan
The issue was discovered at [https://github.com/apache/calcite/pull/4345.]
For example in unit test testMakeInReturnsSearchForArrayLiterals:
{code:java}
[100:INTEGER, 200:INTEGER]:INTEGER NOT NULL ARRAY,[300:INTEGER,
400:INTEGER]:INTEGER NOT NULL ARRAY]:INTEGER NOT NULL ARRAY
Can be simplified to：
[100, 200],[300, 400]:INTEGER NOT NULL ARRAY NOT NULL{code}
1: The repeated element types do not necessarily need to be output.
2: It is necessary to add the nullable information output for the Array.
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