Streamify more code paths

Xuneng Zhou <xunengzhou@gmail.com>

From: Xuneng Zhou <xunengzhou@gmail.com>

To: pgsql-hackers <pgsql-hackers@lists.postgresql.org>

Date: 2025-12-25T05:51:41Z

Lists: pgsql-hackers

Attachments

v1-0003-Streamify-heap-bloat-estimation-scan.patch (application/x-patch)
v1-0002-Streamify-Bloom-VACUUM-paths.patch (application/x-patch)
v1-0001-Switch-Bloom-scan-paths-to-streaming-read.patch (application/x-patch)

Hi Hackers,

I noticed several additional paths in contrib modules, beyond [1],
that are potentially suitable for streamification:

1) pgstattuple — pgstatapprox.c and parts of pgstattuple_approx_internal
2) Bloom — scan paths in blgetbitmap() and maintenance paths in blbulkdelete()

The following patches streamify those code paths. No benchmarks have
been run yet.

[1] https://www.postgresql.org/message-id/flat/CABPTF7UeN2o-trr9r7K76rZExnO2M4SLfvTfbUY2CwQjCekgnQ%40mail.gmail.com

Feedbacks welcome.

--
Best,
Xuneng