Module datafusion::logicalplan

This module provides a logical query plan enum that can describe queries. Logical query plans can be created from a SQL statement or built programmatically via the Table API.

Logical query plans can then be optimized and executed directly, or translated into physical query plans and executed.

Structs

FunctionMeta	Logical representation of a UDF (user-defined function)
LogicalPlanBuilder	Builder for logical plans

Enums

Expr	Relation expression
FunctionType	Enumeration of supported function types (Scalar and Aggregate)
LogicalPlan	The LogicalPlan represents different types of relations (such as Projection, Selection, etc) and can be created by the SQL query planner and the DataFrame API.
Operator	Operators applied to expressions
ScalarValue	ScalarValue enumeration

Functions

abs
acos
aggregate_expr	Create an aggregate expression
asin
atan
can_coerce_from	Verify a given type cast can be performed
ceil
col	Create a column expression based on a column name
col_index	Create a column expression based on a column index
cos
exp
floor
lit_str	Create a literal string expression
ln
log2
log10
round
scalar_function	Create an aggregate expression
signum
sin
sqrt
tan
trunc