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Posted to github@arrow.apache.org by "tustvold (via GitHub)" <gi...@apache.org> on 2023/04/06 17:33:07 UTC

[GitHub] [arrow-rs] tustvold opened a new issue, #4025: Schema Contains Tests for Metadata Subset not Superset

tustvold opened a new issue, #4025:
URL: https://github.com/apache/arrow-rs/issues/4025

   **Describe the bug**
   <!--
   A clear and concise description of what the bug is.
   -->
   
   Schema::contains states that it returns true if
   
   > self.metadata is a superset of other.metadata
   
   It then checks this with
   
   ```
   other.metadata().iter().all(|(k, v)| {
       match self.metadata().get(k) {
           Some(s) => s == v,
           None => false
       }
   })
   ```
   
   This will instead return true if `self.metadata` is a subset of `other.metadata`
   
   **To Reproduce**
   <!--
   Steps to reproduce the behavior:
   -->
   
   This appears to have been incorrect in the original implementation provided by @houqp in https://github.com/apache/arrow-rs/commit/a281c49194da4121386ab6211e42c0c1aa08008e. 
   
   **Expected behavior**
   <!--
   A clear and concise description of what you expected to happen.
   -->
   
   **Additional context**
   <!--
   Add any other context about the problem here.
   -->


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[GitHub] [arrow-rs] tustvold closed issue #4025: Schema Contains Tests for Metadata Subset not Superset

Posted by "tustvold (via GitHub)" <gi...@apache.org>.
tustvold closed issue #4025: Schema Contains Tests for Metadata Subset not Superset
URL: https://github.com/apache/arrow-rs/issues/4025


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[GitHub] [arrow-rs] tustvold commented on issue #4025: Schema Contains Tests for Metadata Subset not Superset

Posted by "tustvold (via GitHub)" <gi...@apache.org>.
tustvold commented on issue #4025:
URL: https://github.com/apache/arrow-rs/issues/4025#issuecomment-1499404230

   Brain fart, the logic is the right way round :facepalm: 


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