The TPC-DS data generator ported in src/dsdgen (DuckDB's extension/tpcds/dsdgen, from the
TPC's dsdgen), its distributions (src/dsdgen/tpcds.idx), the queries and their answers are
part of the TPC-DS benchmark specification and carry the TPC's notice below, which every
dsdgen source file repeats. They are not covered by rustdb's MIT license.

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Contributors:
Gradient Systems
