Table of contents Term Context Additional information Concurrency SQL/PQL Queries Number of concurrent users running queries on data and how this may affect query latency
Term Context Additional information Field Table rows Field data types to group rows into different categories:boolinttimestamp Fields, ranked Table rows Rows kept in sorted order within the field. Freshness Data import/ingest How much time elapses from when a data point is “sensed” by the system, until that data point will affect the results of a query.
Term Context Additional information Latency SQL/PQL Queries How much time elapses between when a query is sent to a system and when the results return to the client.
Term Context Additional information MAX SQL INT constraint INT data type Min SQL INT constraint INT data type Mutex String Data type A FeatureBase field type similar to the Set type, in which only a single value can be set at any time. Conceptually similar to an enum type, but implemented on top of Set fields, with a performance cost from the single-value constraint. Not to be confused with the mutex synchronization primitive.
Term Context Additional information Protobuf Binary serialization format used for internal messages which can be used by clients as an alternative to JSON. Protobuf
Term Context Additional information Query (SQL) Structured Query Language SQL Guide
Term Context Additional information Record Database table row Equivalent to RDBMS table row. FeatureBase uses “Record” to avoid confusion Roaring Bitmap FeatureBase database roaringbitmap.org
Term Context Additional information View FeatureBase fields CREATE VIEW statement View (Primary) FeatureBase fields Standard view that represents typical base data View (Time-based) FeatureBase fields Automatically generated view for time quantum fields