Re: Troubles dumping a very large table.

I was hoping use pg_dump and not to have to do a manual dump but if that
latest solution (moving rows >300mb elsewhere and dealing with them
later) does not work I'll try that.

Thanks everyone.

Merlin Moncure wrote:
> On Fri, Dec 26, 2008 at 12:38 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
>> Ted Allen <tallen(at)blackducksoftware(dot)com> writes:
>>
>>> 600mb measured by get_octet_length on data. If there is a better way to measure the row/cell size, please let me know because we thought it was the >1Gb problem too. We thought we were being conservative by getting rid of the larger rows but I guess we need to get rid of even more.
>>>
>> Yeah, the average expansion of bytea data in COPY format is about 3X :-(
>> So you need to get the max row length down to around 300mb. I'm curious
>> how you got the data in to start with --- were the values assembled on
>> the server side?
>>
>
> Wouldn't binary style COPY be more forgiving in this regard? (if so,
> the OP might have better luck running COPY BINARY)...
>
> This also goes for libpq traffic..large (>1mb) bytea definately want
> to be passed using the binary switch in the protocol.
>
> merlin
>