On Oct 3, 2011, at 6:52 AM, 姜头 wrote:
> How can i get record by data block not by sql?
>
> I want to read and write lots of data by data blocks and write record to a
> appointed data block and read it.
> so i can form a disk-resident tree by recording the block address. But i
> don't know how to implement in postgresql.
> Is there system function can do this?
> Can someone help me?? Thank you very very much1
It sounds like you should look into the COPY command, or, if you're
adventurous, the pg_bulkload project. They might get you the speed you're
after, if not quite the implementation. But if what you're really after is to
manipulate the table files directly - and I'm not sure why that would be a goal
in itself - then perhaps SQL isn't for you.
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