[Koha-bugs] [Bug 33987] New: Combine multiple db updates in C4::ImportBatch::BatchCommitRecords for efficiency/avoiding possible deadlocks

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=33987

            Bug ID: 33987
           Summary: Combine multiple db updates in
                    C4::ImportBatch::BatchCommitRecords for
                    efficiency/avoiding possible deadlocks
 Change sponsored?: ---
           Product: Koha
           Version: master
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P5 - low
         Component: Tools
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: kyle at bywatersolutions.com
        QA Contact: testopia at bugs.koha-community.org

When replacing existing records BatchCommitRecords will the table
import_records will be updated three times for three different fields by three
different queries. Not only is this inefficient ( especially for large batches
), it seems that this is causing the dreaded "Lock wait timeout exceeded; try
restarting transaction" error on some mysql/mariadb configurations.

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