| From: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
|---|---|
| To: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Cc: | John Naylor <john(dot)naylor(at)enterprisedb(dot)com> |
| Subject: | Force lookahead in COPY FROM parsing |
| Date: | 2021-03-04 09:13:40 |
| Message-ID: | 89627a2a-c123-a8aa-267e-5d168feb73dd@iki.fi |
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| Lists: | pgsql-hackers |
I posted this earlier at
https://www.postgresql.org/message-id/9ec25819-0a8a-d51a-17dc-4150bb3cca3b@iki.fi,
and that led to removing FE/BE protocol version 2 support. That's been
committed now, so here's COPY FROM patch again, rebased. To recap:
Previously COPY FROM could not look ahead in the COPY stream, because in
the v2 protocol, it had to detect the end-of-copy marker correctly. With
v2 protocol gone, that's no longer an issue, and we can simplify the
parsing slightly. Simpler should also mean faster, but I haven't tried
that measuring that.
- Heikki
| Attachment | Content-Type | Size |
|---|---|---|
| v2-0001-Simplify-COPY-FROM-parsing-by-forcing-lookahead.patch | text/x-patch | 9.9 KB |
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