As per title.

Sample usage (from test)

#[derive(Debug, sqlx::FromRow)]
#[sqlx(rename_all = "camelCase")]
struct AccountKeyword {
    user_id: i32,
    user_name: String,
    user_surname: String,
}

It looks like this feature was present in a previous version / someone's intention because it was already documented (but not working).

The choice of using camelCase and PascalCase was taken for consistency with serde and with the existing documentation, even though heck's terminology is mixedCase and CamelCase