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PhysicalExprSimplifier

deltalake::datafusion::physical_expr::simplifier

Struct PhysicalExprSimplifier 

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pub struct PhysicalExprSimplifier<'a> { /* private fields */ }
Expand description

Simplifies physical expressions by applying various optimizations

This can be useful after adapting expressions from a table schema to a file schema. For example, casts added to match the types may potentially be unwrapped.

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impl<'a> PhysicalExprSimplifier<'a>

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pub fn new(schema: &'a Schema) -> PhysicalExprSimplifier<'a>

Create a new physical expression simplifier

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pub fn simplify( &self, expr: Arc<dyn PhysicalExpr>, ) -> Result<Arc<dyn PhysicalExpr>, DataFusionError>

Simplify a physical expression

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