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base repository: postgresql-cfbot/postgresql
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base: cf/5952~1
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head repository: postgresql-cfbot/postgresql
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compare: cf/5952
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  • 2 commits
  • 1 file changed
  • 2 contributors

Commits on Aug 9, 2025

  1. Speed up COPY FROM text/CSV parsing using SIMD 

    The inner loop of CopyReadLineText scans for newlines and other special
characters by processing the input byte-by-byte. For large inputs, this
can be a performance bottleneck.

This commit introduces a SIMD-accelerated path. When not parsing inside
a quoted field, we can use vector instructions to scan the input buffer
for any character of interest in 16-byte chunks. This significantly
improves performance, especially for data with long, unquoted fields.
    @shinyaaa
    shinyaaa authored and Commitfest Bot committed Aug 9, 2025
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  2. [CF 5952] v1 - Speed up COPY FROM text/CSV parsing using SIMD 

    This branch was automatically generated by a robot using patches from an
email thread registered at:

https://commitfest.postgresql.org/patch/5952

The branch will be overwritten each time a new patch version is posted to
the thread, and also periodically to check for bitrot caused by changes
on the master branch.

Patch(es): https://www.postgresql.org/message-id/CAOzEurSW8cNr6TPKsjrstnPfhf4QyQqB4tnPXGGe8N4e_v7Jig@mail.gmail.com
Author(s): Shinya Kato
    Commitfest Bot committed Aug 9, 2025
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    66544ec View commit details
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