Module datafusion_expr::logical_plan::builder

This module provides a builder for creating LogicalPlans

Structs

LogicalPlanBuilder

Builder for logical plans

LogicalTableSource

Basic TableSource implementation intended for use in tests and documentation. It is expected that users will provide their own TableSource implementations or use DataFusion’s DefaultTableSource.

Constants

UNNAMED_TABLE

Default table name for unnamed table

Functions

build_join_schema

Creates a schema for a join operation. The fields from the left side are first

project

Create Projection

project_with_column_index

subquery_alias

Create a SubqueryAlias to wrap a LogicalPlan.

table_scan

Create a LogicalPlanBuilder representing a scan of a table with the provided name and schema. This is mostly used for testing and documentation.

union

Union two logical plans.

wrap_projection_for_join_if_necessary

Wrap projection for a plan, if the join keys contains normal expression.