[Libreoffice-bugs] [Bug 133801] Sorting a column uses 600 MB, with LibO 4.2 90 MB

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=133801

--- Comment #2 from Telesto <telesto at surfxs.nl> ---
Created attachment 161774
  --> https://bugs.documentfoundation.org/attachment.cgi?id=161774&action=edit
Bibisect log

Bisected to
commit 89c92c5812cbfb70120b588d1f52d3d8dfcacce3
Author: Matthew Francis <mjay.francis at gmail.com>
Date:   Thu May 28 21:17:43 2015 +0800

    source-hash-f4a075728f62f0083a4bffd40d3c02265082d962

    commit f4a075728f62f0083a4bffd40d3c02265082d962
    Author:     Kohei Yoshida <kohei.yoshida at collabora.com>
    AuthorDate: Fri Apr 18 00:29:55 2014 -0400
    Commit:     Kohei Yoshida <kohei.yoshida at collabora.com>
    CommitDate: Wed Apr 23 21:08:20 2014 -0400

        Avoid using SwapRow() when sorting.

        Instead, build a data table prior to sorting, swap rows in this data
table
        as we sort, then transfer the results back to the document in one step.
 This
        significantly speeds up the sort performance.

        Formula cells are yet to be handled. I'll work on that next.

        Change-Id: I59bde1a243dc8940411d1a33eef147671b060cd0

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