Configurable domain preference #236
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(For benchmarking and other experimentation.)
The original code was very fancy to avoid reading the input multiple times. This was a concern, for example with large CSVs. But now the input is always a Table, which is backed directly by a Parquet file in LynxKite storage. Parquet is column-oriented, so we can just read the columns one by one.
I've never even heard about it.
Use Parquet instead of Sequence files for entities
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This is from a more experimental repo. But even on normal LynxKite it's useful to be able to turn on/off any domain and change their preference when experimenting with something.