Re: Re: pg_dump and LOs (another proposal)

At 09:30 7/07/00 +0200, Karel Zak wrote:
>
>> P.S. I have only half-written the lo dumping code, so this is all quite
>> open...
>
> A "blasphemy" question, is really needful LO dump if we will have TOAST and
>LO will lonely past? If anyone still need dump LO (for example I) is
possible 
>use pg_dumplo from contrib tree, that (as some users say) works very well. 
>Not is work on LO dump, after several years and during LO funeral loss of
>time? (sorry).

There are three reasons why I continue:

1. To learn

2. Because I believe that BLOBs will exist after TOAST, although the
implementation will have changed. The code to handle the current format
will be at least 70% reusable (assuming a similar set of
lo_open/read/write/close calls).

3. We will need a way of exporting old BLOBs and importing them as TOAST
BLOBs.

I could be wrong about (2), but I think binary data can not be easily
loaded from a pure text file, and (3) could ultimately be handled by
pg_dump_lo, but I like the idea of an integrated tool.


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