| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: COPY and read-only transactions |
| Date: | 2006-03-30 14:29:26 |
| Message-ID: | 14395.1143728966@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> I probably made the original mistake in the code, so I refrain from claiming
> to know anything about Boolean logic, but this note in the release notes
> doesn't seem right:
> Fix the sense of the test for read-only transaction in COPY
> The code formerly prohibited COPY TO, where it should prohibit COPY FROM.
No, it's correct --- the directions are COPY table TO file or COPY table
FROM file. The FROM case is therefore the one that changes the database.
I've always found that directionality nonintuitive, but it's surely far
too late to reverse the sense.
regards, tom lane
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