On 2010-11-11 16:48, Tom Lane wrote:
"Yeb Havinga"<yebhavi...@gmail.com> writes:
postgres=# create table a as select ''::oidvector;
SELECT 1
postgres=# copy a to '/tmp/test' with binary;
COPY 1
postgres=# copy a from '/tmp/test' with binary;
ERROR: invalid oidvector data
The problem seems to be that array_recv passes back a zero-dimensional
array, *not* a 1-D array, when it observes that the input has no
elements. A zero-D array is not part of the subset of possible arrays
that we allow for oidvector.
I'm less than convinced that this is worth fixing. oidvector is not
intended for general-purpose use anyway. What's the use-case where this
would come up?
We're currently reading data from a remote pg_statistics, in particular
stavalues1.. etc. Even when our own user defined relations do not make
use of oidvectors (or intvectors), during testing on arbitrary
pg_statistic rows we encountered this error message. Nonetheless we
decided to report it as a bug, since it was not related to anyarray
handling, but clearly a bug that oidvector cannot input binary, what it
can input as text and output binary.
regards,
Yeb Havinga
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