Module datafusion::execution::physical_plan

Traits for physical query plan, supporting parallel execution for partitioned relations.

Modules

common	Defines common code used in execution plans
csv	Execution plan for reading CSV files
datasource	ExecutionPlan implementation for DataFusion data sources
expressions	Defines physical expressions that can evaluated at runtime during query execution
hash_aggregate	Defines the execution plan for the hash aggregate operation
merge	Defines the merge plan for executing partitions in parallel and then merging the results into a single partition
projection	Defines the projection execution plan. A projection determines which columns or expressions are returned from a query. The SQL statement SELECT a, b, a+b FROM t1 is an example of a projection on table t1 where the expressions a, b, and a+b are the projection expressions.
selection	Defines the selection execution plan. A selection filters rows based on a predicate

Traits

Accumulator	Aggregate accumulator
AggregateExpr	Agggregate expression that can be evaluated against a RecordBatch
BatchIterator	Iterator over RecordBatch that can be sent between threads
ExecutionPlan	Partition-aware execution plan for a relation
Partition	Represents a partition of an execution plan that can be executed on a thread
PhysicalExpr	Expression that can be evaluated against a RecordBatch