Thread

Re: [GENERAL] Postgres INSERTs much slower than MySQL?

Vadim Mikheev <vadim@krs.ru> — 1999-10-20T08:12:50Z

Lincoln Yeoh wrote:
> 
> It's now a lot faster. Now only about 5 or so times slower. Cool.
> 
> But it wasn't unexpected that I got the following after a while ;).
> 
> NOTICE:  BufferAlloc: cannot write block 990 for joblist/central
> 
> NOTICE:  BufferAlloc: cannot write block 991 for joblist/central
> DBD::Pg::st execute failed: NOTICE:  BufferAlloc: cannot write block 991
> for joblist/central
> Error executing insert!NOTICE:  BufferAlloc: cannot write block 991 for
> joblist/central
> Database handle destroyed without explicit disconnect.
> 
> I don't mind that. I was actually waiting to see what would happen and
> my jaw would have dropped if MVCC could handle Multi Versions with
> 10,000,000 records!

It doesn't seem as MVCC problem. MVCC uses transaction ids,
not tuple ones, and so should work with any number of rows
modified by concurrent transaction... In theory... -:))

Vadim