Function deltalake::datafusion::logical_expr::call_fn
source · pub fn call_fn(
name: impl AsRef<str>,
args: Vec<Expr>
) -> Result<Expr, DataFusionError>
Expand description
Calls a named built in function
use datafusion_expr::{col, lit, call_fn};
// create the expression sin(x) < 0.2
let expr = call_fn("sin", vec![col("x")]).unwrap().lt(lit(0.2));