Function pgx::varlena::varlena_to_byte_slice

pub unsafe fn varlena_to_byte_slice<'a>(varlena: *const varlena) -> &'a [u8]

Convert a Postgres varlena * (or byte *) into a Rust &[u8].

Safety

This function is unsafe because it blindly assumes the provided varlena pointer is non-null.

Note also that this function is zero-copy and the underlying Rust &[u8] slice is backed by Postgres-allocated memory. As such, the return value will become invalid the moment Postgres frees the varlena