Обсуждение: How to write a new tuple into page?

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How to write a new tuple into page?

От
"jacktby@gmail.com"
Дата:
Hi, I'm trying to construct a new tuple type, that's not heaptuple,
When I get a tupleTableSlot, I will get data info from it and then I
will constuct a new tuple, and now I need to put it into a physical
page, how should I do?

--------------

jacktby@gmail.com

Re: How to write a new tuple into page?

От
Bharath Rupireddy
Дата:
On Thu, Feb 2, 2023 at 7:31 PM jacktby@gmail.com <jacktby@gmail.com> wrote:
>
> Hi, I'm trying to construct a new tuple type, that's not heaptuple,
> When I get a tupleTableSlot, I will get data info from it and then I
> will constuct a new tuple, and now I need to put it into a physical
> page, how should I do?

Postgres writes table pages from shared buffers/buffer pool to disk
via storage manager (smgr.c). I think looking at the code around
FlushBuffer()/FlushRelationBuffers()/smgrwrite() might help.

-- 
Bharath Rupireddy
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com