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feat: support utilities for strong predicates #15360

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chenzl25 opened this issue Feb 29, 2024 · 0 comments
Closed

feat: support utilities for strong predicates #15360

chenzl25 opened this issue Feb 29, 2024 · 0 comments
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@chenzl25
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Is your feature request related to a problem? Please describe.

Handling null in SQL expressions can be a challenging issue. When optimizing SQL and simplifying expressions, it is important to consider null cases to ensure that the SQL semantics remain unchanged. Therefore, we need utility functions related to null expressions to assist us. We can refer to Calcite's implementation of strong predicates for guidance.

https://github.com/apache/calcite/blob/c546d4a59cf1cb20e6ec2a8981decf179d9a6b50/core/src/main/java/org/apache/calcite/plan/Strong.java

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@github-actions github-actions bot added this to the release-1.8 milestone Feb 29, 2024
@chenzl25 chenzl25 self-assigned this Feb 29, 2024
@chenzl25 chenzl25 closed this as completed Mar 1, 2024
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