Module polars_lazy::frame
source · [−]Expand description
Lazy variant of a DataFrame.
Modules
Polars lazy does not implement a pivot because it is impossible to know the schema without
materializing the whole dataset. This makes a pivot quite a terrible operation for performant
workflows. An optimization can never be pushed down passed a pivot.
Structs
Lazy abstraction over an eager
DataFrame.
It really is an abstraction over a logical plan. The methods of this struct will incrementally
modify a logical plan until output is requested (via collect)Utility struct for lazy groupby operation.
State of the allowed optimizations
Traits
Type Definitions
AllowedOptimizations