[Koha-bugs] [Bug 21288] New: Slowness in acquisition caused by GetInvoices

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=21288

            Bug ID: 21288
           Summary: Slowness in acquisition caused by GetInvoices
 Change sponsored?: ---
           Product: Koha
           Version: master
          Hardware: All
                OS: All
            Status: NEW
          Severity: minor
          Priority: P5 - low
         Component: Acquisitions
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: pasi.kallinen at joensuu.fi
        QA Contact: testopia at bugs.koha-community.org

The SQL query done by GetInvoices is quite slow on our production server.

# Query_time: 55.436404  Lock_time: 0.000097  Rows_sent: 231  Rows_examined:
190484

In the query, there's this join:

          LEFT JOIN subscription ON biblio.biblionumber =
subscription.biblionumber

but there's no index on subscription.biblionumber. Adding the index speeds up
the query so it only takes up about 3 seconds.

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