feat(core): http driver show error with detail.

[youngsofun]

cc @TCeason

[TCeason]

I tested this pr on my local. It's ok.

But in this issue, if under cluster mode, enable_distributed_copy_into=0, use bendsql test will also discard this line:

#git diff
-at file 'sample_2_columns.csv', line 0

So maybe this pr does not fix the root cause.

If bendsql needs detail I think we can merge it.

[youngsofun]

If bendsql needs detail I think we can merge it.

yes, we do

So maybe this pr does not fix the root cause

I will check it later