pub fn warnings(&self) -> Option<&Vec<Warning>> {
        match self.extra {
            Some(ref extra) => Some(&extra.warnings),
            None => None,
        }
    }
/// Returns warnings that occurred during query execution.
Returns warnings that occurred during query execution.
Returns warnings that occurred during query execution .
pub fn warnings(&self) -> Option<&Vec<Warning>> {
        match self.extra {
            Some(ref extra) => Some(&extra.warnings),
            None => None,
        }
    }
pub fn warnings ( & self ) -> Option < & Vec < Warning > > { match self . extra { Some ( ref extra ) => Some ( & extra . warnings ) , None => None , } }
Returns warnings that occurred during query execution.
Returns warnings that occurred during query execution .
&self
&self