Function mysql_common::named_params::parse_named_params

pub fn parse_named_params(
    query: &[u8]
) -> Result<(Option<Vec<Vec<u8>>>, Cow<'_, [u8]>), MixedParamsError>

Returns pair of:

• names of named parameters (if any) in order of appearance in query. Same name may appear multiple times if named parameter used more than once.
• query string to pass to MySql (named parameters replaced with ?).