pub fn build_upsert_sql<T: FieldMeta + FieldUpdate>(
config: &UpsertConfig<'_>,
updates: &[T],
) -> Result<Cow<'static, str>, Error>pub fn build_upsert_sql<T: FieldMeta + FieldUpdate>(
config: &UpsertConfig<'_>,
updates: &[T],
) -> Result<Cow<'static, str>, Error>