[Koha-bugs] [Bug 26025] New: Data loss issue during Schema database upgrade from 16.11 to 20.05

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=26025

            Bug ID: 26025
           Summary: Data loss issue during Schema database upgrade from
                    16.11 to 20.05
 Change sponsored?: ---
           Product: Koha
           Version: 20.05
          Hardware: All
                OS: All
            Status: NEW
          Severity: minor
          Priority: P5 - low
         Component: Installation and upgrade (command-line installer)
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: mishravk79 at gmail.com
        QA Contact: testopia at bugs.koha-community.org

Hi

While trying to run database upgrade command from Koha 16.11 to 20.05 it gives
following error:

Upgrade to 16.12.00.003 done (Bug 17486 - Remove 'Mozilla Persona' as an
authentication method)
DBD::mysql::db do failed: Cannot add or update a child row: a foreign key
constraint fails (`koha_library`.`deletedbiblio_metadata`, CONSTRAINT
`deletedbiblio_metadata_fk_1` FOREIGN KEY (`biblionumber`) REFERENCES
`deletedbiblio` (`biblionumber`) ON DELETE CASCADE ON UPDATE CASCADE) [for
Statement "
        INSERT INTO deletedbiblio_metadata ( biblionumber, format, marcflavour,
metadata ) SELECT biblionumber, 'marcxml', 'CHANGEME', marcxml FROM
deletedbiblioitems;
    "] at
/usr/share/koha/intranet/cgi-bin/installer/data/mysql/updatedatabase.pl line
13816.


Above seems to be data loss under deletedbiblioitem etc. as per discussion over
Koha mailing list?

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