https://bugs.documentfoundation.org/show_bug.cgi?id=100244

            Bug ID: 100244
           Summary: Pivot table seems to cause massive memory leak
           Product: LibreOffice
           Version: 5.1.3.2 release
          Hardware: x86-64 (AMD64)
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: [email protected]
          Reporter: [email protected]

Created attachment 125520
  --> https://bugs.documentfoundation.org/attachment.cgi?id=125520&action=edit
ods with pivot table that causes memory leak

Refreshing the pivot table in the attached file causes LO memory consumption to
spike.  Similar results between Windows 10 and Ubuntu 14.04 on the 5.1.3.2
release.

Warning:  Be prepared to kill LO when you refresh this pivot table!  If you
have a system with LOTS of memory, it will eventually refresh - for me,
resident memory reaches 0.05t with virtual over 52g (on linux "top").

A strange/temporary "fix" is to "Edit Layout.." and remove column "item_num"
*prior* to Refreshing pivot table.  OR remove the "Data Fields" where a
"Difference From" display option is set.

Note:  The source range is only 8300 rows by 12 columns, so not "huge" by any
means.

My guess is that its some combination of "Row fields" and the "Difference From"
that I'm using in the "Data Fields" that is causing the issue.

-Bob

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