Package org.apache.calcite.profile

Utilities to analyze data sets.

See: Description

Interface Summary

Interface	Description
Profiler	Analyzes data sets.
Profiler.Statistic	Statistic produced by the profiler.

Class Summary

Class	Description
Profiler.Column	Column.
Profiler.Distribution	Value distribution, including cardinality and optionally values, of a column or set of columns.
Profiler.FunctionalDependency	Functional dependency.
Profiler.Profile	The result of profiling, contains various statistics about the data in a table.
Profiler.RowCount	Whole data set.
Profiler.Unique	Unique key.
ProfilerImpl	Implementation of Profiler that only investigates "interesting" combinations of columns.
ProfilerImpl.Builder	Builds a ProfilerImpl.
ProfilerImpl.Collector	Collects values of a column or columns.
ProfilerImpl.CompositeCollector	Collector that collects two or more column values in a tree set.
ProfilerImpl.HllCollector	Collector that collects two or more column values into a HyperLogLog sketch.
ProfilerImpl.HllCompositeCollector	Collector that collects two or more column values into a HyperLogLog sketch.
ProfilerImpl.HllSingletonCollector	Collector that collects one column value into a HyperLogLog sketch.
ProfilerImpl.SingletonCollector	Collector that collects values of a single column.
ProfilerImpl.Space	Work space for a particular combination of columns.
ProfilerImpl.SurpriseQueue	A priority queue of the last N surprise values.
SimpleProfiler	Basic implementation of Profiler.
SimpleProfiler.Run	A run of the profiler.
SimpleProfiler.Space	Work space for a particular combination of columns.

Package org.apache.calcite.profile Description

Utilities to analyze data sets.