In Search of the Lost Schema

@inproceedings{Grumbach1999InSO,
  title={In Search of the Lost Schema},
  author={St{\'e}phane Grumbach and Giansalvatore Mecca},
  booktitle={ICDT},
  year={1999}
}
We study the problem of rediscovering the schema of nested relations that have been encoded as strings for storage purposes. We consider various classes of encoding functions, and consider the markup encodings, which allow to nd the schema without knowledge of the encoding function, under reasonable assumptions on the input data. Depending upon the encoding of empty sets, we propose two polynomial on-line algorithms (with diierent buuer size) solving the schema nding problem. We also prove that… CONTINUE READING
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