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Summary: no, because row order matters in dataframes. That's why matrix operations are a better computational framework for dataframes than relational algebra.
by SatvikBeri 7y ago
Summary: no, because row order matters in dataframes. That's why matrix operations are a better computational framework for dataframes than relational algebra.
- deleted 7y ago[deleted]
- gpderetta 7y agoThat's doesn't seem a very defining characteristic. Row order/index is just an implicit primary key column.
- SatvikBeri 7y agoThe point is which operations you optimize for. Most SQL databases aren't well-optimized for matrix multiplication, but are great with search-style queries, and the opposite for dataframes.
- collyw 7y agoIt matters in many non-trivial queries as well.