Estimates row counts for a lattice and its attributes.
Creates tables that represent a materialized view.
Structure that allows materialized views based upon a star schema to be recognized and recommended.
Column in a lattice.
Measure in a lattice.
Source relation of a lattice.
Materialized aggregate within a lattice.
Unique identifier for a materialization.
Manages the collection of materialized tables known to the system, and the process by which they become valid and invalid.
Default implementation of
Definition of a particular combination of dimensions and measures of a lattice that is the basis of a materialization.
Algorithm that suggests a set of initial tiles (materialized aggregate views) for a given lattice.
An actor (
maintains the state of all
materializations in the system and is wrapped in a service
for access from other parts of the system.
Optimizer rules allow Calcite to rewrite queries using materializations, if they are valid (that is, contain the same result as executing their defining query) and lower cost.
In future, the actor may manage the process of updating materializations, instantiating materializations from the intermediate results of queries, and recognize what materializations would be useful based on actual query load.
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