Function create_simplified_expr_test

datafusion/core/tests/expr_api/mod.rs:425–436

Creates the physical expression from Expr and runs the expr simplifier

(expr: Expr, expected_expr: &str)

/// Creates the physical expression from Expr and runs the expr simplifier
fn create_simplified_expr_test(expr: Expr, expected_expr: &str) {
    let batch = &TEST_BATCH;
    let df_schema = DFSchema::try_from(batch.schema()).unwrap();

    // Simplify the expression first
    let simplify_context = SimplifyContext::builder()
        .with_schema(Arc::new(df_schema))
        .build();
    let simplifier = ExprSimplifier::new(simplify_context).with_max_cycles(10);
    let simplified = simplifier.simplify(expr).unwrap();
    create_expr_test(simplified, expected_expr);
}

/// Returns a Batch with 3 rows and 4 columns:
///