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help / color / mirror / Atom feedFrom: Nazir Bilal Yavuz <[email protected]>
To: Melanie Plageman <[email protected]>
Cc: Thomas Munro <[email protected]>
Cc: Jonathan S. Katz <[email protected]>
Cc: pgsql-hackers <[email protected]>
Subject: Re: Trying out read streams in pgvector (an extension)
Date: Wed, 19 Nov 2025 10:27:59 +0300
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Hi,
On Wed, 19 Nov 2025 at 00:17, Melanie Plageman
<[email protected]> wrote:
>
> To make sure 1) distance isn't reset to a resume_distance from
> read_stream_begin_relation() and 2) unexpected buffers aren't returned
> from the read stream, we could error out in read_stream_resume() if
> pinned_buffers > 0. And in read_stream_reset(), we would save distance
> in resume_distance before clearing distance. That would allow calling
> read_stream_resume() either if you called read_stream_reset() or if
> you exhausted the stream yourself. See rough attached patch for a
> sketch of this.
This looks correct to me. What do you think about using an assert
instead of erroring out?
--
Regards,
Nazir Bilal Yavuz
Microsoft
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Subject: Re: Trying out read streams in pgvector (an extension)
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