simplify_predicates

datafusion_python::optimizer::simplify_expressions

Function simplify_predicates 

Source 
pub fn simplify_predicates(
    predicates: Vec<Expr>,
) -> Result<Vec<Expr>, DataFusionError>
Expand description

Simplifies a list of predicates by removing redundancies.

This function takes a vector of predicate expressions and groups them by the column they reference. Predicates that reference a single column and are comparison operations (e.g., >, >=, <, <=, =) are analyzed to remove redundant conditions. For instance, x > 5 AND x > 6 is simplified to x > 6. Other predicates that do not fit this pattern are retained as-is.

§Arguments

  • predicates - A vector of Expr representing the predicates to simplify.

§Returns

A Result containing a vector of simplified Expr predicates.