Crate datafusion_physical_expr

Re-exports

• pub use aggregate::AggregateExpr;
• pub use analysis::analyze;
• pub use analysis::AnalysisContext;
• pub use analysis::ExprBoundaries;
• pub use equivalence::EquivalenceProperties;
• pub use planner::create_physical_expr;
• pub use planner::create_physical_exprs;
• pub use utils::reverse_order_bys;
• pub use utils::split_conjunction;

Modules

• aggregate
• analysis
  Interval and selectivity in AnalysisContext
• binary_map
  ArrowBytesMap and ArrowBytesSet for storing maps/sets of values from StringArray / LargeStringArray / BinaryArray / LargeBinaryArray.
• conditional_expressions
• equivalence
• execution_props
• expressions
  Defines physical expressions that can evaluated at runtime during query execution
• functions
  Declaration of built-in (scalar) functions. This module contains built-in functions’ enumeration and metadata.
• intervals
  Interval arithmetic and constraint propagation library
• math_expressions
  Math expressions
• planner
• sort_properties
• string_expressions
  String expressions
• tree_node
  This module provides common traits for visiting or rewriting tree nodes easily.
• udf
  UDF support
• unicode_expressions
  Unicode expressions
• utils
• window

Structs

• GroupsAccumulatorAdapter
  An adapter that implements GroupsAccumulator for any Accumulator
• NullState
  Track the accumulator null state per row: if any values for that group were null and if any values have been seen at all for that group.
• PhysicalSortExpr
  Represents Sort operation for a column in a RecordBatch
• PhysicalSortRequirement
  Represents sort requirement associated with a plan
• ScalarFunctionExpr
  Physical expression of a scalar function

Enums

• Distribution
  How data is distributed amongst partitions. See Partitioning for more details.
• Partitioning
  Output partitioning supported by ExecutionPlans.

Traits

• PhysicalExpr
  PhysicalExpr evaluate DataFusion expressions such as A + 1, or CAST(c1 AS int).

Functions

• physical_exprs_bag_equal
  Checks whether the given physical expression slices are equal in the sense of bags (multi-sets), disregarding their orderings.
• physical_exprs_contains
  This function is similar to the contains method of Vec. It finds whether expr is among physical_exprs.
• physical_exprs_equal
  Checks whether the given physical expression slices are equal.

Type Aliases

• LexOrdering
  LexOrdering is an alias for the type Vec<PhysicalSortExpr>, which represents a lexicographical ordering.
• LexOrderingRef
  LexOrderingRef is an alias for the type &[PhysicalSortExpr], which represents a reference to a lexicographical ordering.
• LexRequirement
  LexRequirement is an alias for the type Vec<PhysicalSortRequirement>, which represents a lexicographical ordering requirement.
• LexRequirementRef
  LexRequirementRef is an alias for the type &[PhysicalSortRequirement], which represents a reference to a lexicographical ordering requirement.
• PhysicalExprRef
  Shared PhysicalExpr.