| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Stephen Frost <sfrost(at)snowman(dot)net> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Ragged CSV import |
| Date: | 2009-09-11 14:59:23 |
| Message-ID: | 4AAA65CB.9070307@dunslane.net |
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| Thread: | |
| Lists: | pgsql-hackers |
I wrote:
> I'd love to be able to do something like
>
> INSERT into foo (x,y,z) select t[3],[t2],[t57] from (COPY RETURNING
> t FROM stdin CSV);
>
>
Some IRC discussion suggested ways we could do better than that syntax.
I think my current preferred candidate is something like
COPY foo (a,b,c)
FROM stdin
CSV
AS t USING (t[3],t[2],[t57]);
I'm not sure how we'd could plug a filter into that. Maybe a WHERE
clause? My immediate need at least doesn't actually involve filtering
anything - we load every line in the CSV into a temp table and then
filter what we load into the main tables after applying the business rules.
cheers
andrew
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