[−][src]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) |
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
| can_coerce_from | Verify a given type cast can be performed |