is_end_bound_safe_for_rows

datafusion_physical_expr::window::window_expr

Function is_end_bound_safe_for_rows 

Source 
fn is_end_bound_safe_for_rows(end_bound: &WindowFrameBound) -> Result<bool>
Expand description

For row-based window frames, determines whether the end bound calculation is safe, which is trivially the case for Preceding and CurrentRow bounds. For ‘Following’ bounds, it compares the bound value to zero to ensure that it doesn’t extend beyond the current row.

§Parameters

  • end_bound: Reference to the window frame bound in question.

§Returns

A Result indicating whether the end bound is safe for row-based window frames.