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datafusion::execution::context - Rust
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Module datafusion::execution::context

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SessionContext contains methods for registering data sources and executing queries

Structs

  • ExecutionProps
    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.
  • SessionConfig
    Configuration options for session context
  • SessionContext
    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
  • SessionState
    Execution context for registering data sources and executing queries
  • TaskContext
    Task Execution Context

Traits

  • DataFilePaths
    DataFilePaths adds a method to convert strings and vector of strings to vector of ListingTableUrl URLs. This allows methods such SessionContext::read_csv and [SessionContext::read_avro`] to take either a single file or multiple files.
  • QueryPlanner
    A planner used to add extensions to DataFusion logical and physical plans.

Functions