[PR] Fix relational delete node serialization [iotdb]

["Caideyipi (via GitHub)" <gi...@apache.org>]

Caideyipi opened a new pull request, #17867:
URL: https://github.com/apache/iotdb/pull/17867

   ## Description
   
   This PR fixes relational delete node serialization so table-model delete data events preserve the database name consistently.
   
   - Write `databaseName` in `RelationalDeleteDataNode` WAL serialization to match WAL deserialization.
   - Include `databaseName` in `serializedSize()` and equality/hash code.
   - Cover non-null database name in the existing serialization test.
   
   Related to #17816.
   
   ## Tests
   
   - `mvn -pl iotdb-core/datanode spotless:apply`
   - `git diff --check`
   - `java -cp ... org.junit.runner.JUnitCore org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.RelationalDeleteDataNodeTest`
   
   `mvn -pl iotdb-core/datanode -Dtest=RelationalDeleteDataNodeTest test` does not reach the test phase in this checkout because datanode compilation currently fails on unrelated `MemoryReservationManager` signature mismatches.


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Re: [PR] Fix relational delete node serialization [iotdb]

["jt2594838 (via GitHub)" <gi...@apache.org>]

jt2594838 merged PR #17867:
URL: https://github.com/apache/iotdb/pull/17867


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