public WALFlushListener logDeleteDataNodeInWAL(RelationalDeleteDataNode deleteDataNode) {
    return walNode.log(workMemTable.getMemTableId(), deleteDataNode);
  }
Delete data which belongs to the timeseries `deviceId.measurementId` and the timestamp of which
<= 'timestamp' in the deletion. <br>

<p>Delete data in both working MemTable and flushing MemTables.

@return true if data in MemTable is successfully deleted, false otherwise
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/TsFileProcessor.java