ejrh / matdb

A Tensor Database

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Query criteria

ejrh opened this issue · comments

When performing a query of the database, allow criteria to be specified to filter the returned rows.

Conditions on dimensions can be used to speed up queries by removing entire blocks from the query process. For example, in a typical timeseries database, "time > 1000000" will skip entire segments whose time values are all below 1000000.