On 2025/06/10 9:43, Shinya Kato wrote:
However, a similar proposal was made earlier [1], and seemingly
some hackers weren't in favor of it. It's probably worth reading
that thread to understand the previous concerns.
[1]
https://postgr.es/m/calay4q8ngsxp0p5uf56vn-md7rewqzp5k6ps1cgum26x4fs...@mail.gmail.com
Oh, I missed it. I will check it soon.
I read it.
There are clear differences from the earlier proposal. My sole
motivation is to skip multiple headers, and I don't believe a feature
for skipping footers is necessary. To be clear, I think it's best to
simply extend the current HEADER option.
Sounds ok to me.
Regarding the concern about adding ETL-like functionality, this
feature is already implemented in other RDBMSs, which is why I believe
it is also necessary for PostgreSQL.
Honestly, I haven't implemented it yet, so I'm not sure about the
performance. However, I don't expect it to be significantly different
from the current HEADER option that skips a single line.
So it seems better for you to implement the patch at first and then
check the performance overhead etc if necessary.
Regards,
--
Fujii Masao
NTT DATA Japan Corporation
