Module datafusion_optimizer::optimize_projections

Optimizer rule to prune unnecessary columns from intermediate schemas inside the LogicalPlan. This rule:

• Removes unnecessary columns that do not appear at the output and/or are not used during any computation step.
• Adds projections to decrease table column size before operators that benefit from a smaller memory footprint at its input.
• Removes unnecessary LogicalPlan::Projections from the LogicalPlan.

Structs

• OptimizeProjections
  A rule for optimizing logical plans by removing unused columns/fields.