https://bugs.documentfoundation.org/show_bug.cgi?id=159598

Stéphane Guillou (stragu) <stephane.guil...@libreoffice.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |108320
             Status|RESOLVED                    |NEW
            Summary|Calc stalled when opening a |Merging a whole column
                   |simple file                 |increases file size
                   |                            |unnecessarily (comment 8)
           See Also|                            |https://bugs.documentfounda
                   |                            |tion.org/show_bug.cgi?id=14
                   |                            |4521
                 CC|                            |rb.hensc...@t-online.de
           Keywords|                            |filter:ods
         Resolution|INVALID                     |---
            Version|unspecified                 |Inherited From OOo

--- Comment #10 from Stéphane Guillou (stragu) 
<stephane.guil...@libreoffice.org> ---
(In reply to Heiko Tietze from comment #9)
> (In reply to ady from comment #8)#
> > This report could be left open...
> Up to QA to decide (prolly we have tickets with this content)

OK, let's refocus, using comment 8 for steps.

Results for me:
- pre-merge ODS: 7.9 kb
- post-merge ODS (merged cell is C1:D1048576): 736.5 kb

Even for a single merged column, I get 592.3 kb.

For comparison, if I instead only input some text in cell D1048576 and save,
the ODS stays at 8.1 kb.

Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 8b599d60fef80039cdfe636a771c3fc8eb1028c3
CPU threads: 8; OS: Linux 6.5; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: CL threaded

OOo 3.3 goes to 568 kb (selection is also C1:D1048576), so marking as
inherited.

I think the discussion in 144521 might be relevant here.
Regina, any input regarding the ODF spec?

---

Side notes:
- I tried a format comparison, but XLSX with two merged columns does not change
size (5.1 kb before and after) - that's because full-row and full-column merges
are lost.
- Google Docs only merges for the first 1000 rows, resulting in a much smaller
file, of course. We shouldn't follow that though. contents.xml looks extremely
redundant as well.


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=108320
[Bug 108320] [META] Calc cells merging and splitting bugs and enhancements
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