Module datafusion::execution::context
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SessionContext contains methods for registering data sources and executing queries
Structs
Holds per-execution properties and data (such as starting timestamps, etc).
An instance of this struct is created each time a [LogicalPlan] is prepared for
execution (optimized). If the same plan is optimized multiple times, a new
ExecutionProps is created each time.
Configuration options for session context
SessionContext is the main interface for executing queries with DataFusion. It stands for the connection between user and DataFusion/Ballista cluster. The context provides the following functionality
Execution context for registering data sources and executing queries
Task Execution Context
Enums
Task Context Properties
Constants
Session Configuration entry name for ‘PARQUET_PRUNING’
Session Configuration entry name for ‘REPARTITION_AGGREGATIONS’
Session Configuration entry name for ‘REPARTITION_JOINS’
Session Configuration entry name for ‘REPARTITION_WINDOWS’
Session Configuration entry name for ‘TARGET_PARTITIONS’
Traits
A planner used to add extensions to DataFusion logical and physical plans.
Functions
Default session builder using the provided configuration