pub trait QueryMetadata<T>: Backend {
    fn row_metadata(
        lookup: &mut Self::MetadataLookup,
        out: &mut Vec<Option<Self::TypeMetadata>>
    ); }
Expand description

A helper to translate type level sql type information into runtime type information for specific queries

If you do not implement a custom backend implementation this trait is likely not relevant for you.

Required Methods§

The exact return value of this function is considerded to be a backend specific implementation detail. You should not rely on those values if you not own the corresponding backend