[−][src]Module datafusion::execution
DataFusion query execution
Modules
aggregate | Execution of a simple aggregate relation containing MIN, MAX, COUNT, SUM aggregate functions with optional GROUP BY columns |
context | ExecutionContext contains methods for registering data sources and executing queries |
expression | Evaluation of expressions against RecordBatch instances. |
filter | Execution of a filter (predicate) relation. The SQL clause |
limit | Limit relation, to limit the number of rows returned by a relation |
physical_plan | Traits for physical query plan, supporting parallel execution for partitioned relations. |
projection | Defines the projection relation. A projection determines which columns or expressions
are returned from a query. The SQL statement |
relation | A relation is a representation of a set of tuples. A database table is a type of relation. During query execution, each operation on a relation (such as projection, selection, aggregation) results in a new relation. |
scalar_relation | Scalar relation, emit one fixed scalar value. |
table_impl | Implementation of Table API |