• Andy Yates's avatar
    [ENSCORESW-757]. Cannot perform a fast query on two OR fields from the same table. · f6aa1756
    Andy Yates authored
    Our lookups of primary accessions and display labels with the Xref table was
    flawed. Seems MySQL can only use 1 index per query and it is not possible to
    create a single index that can handle querying on two columns when either
    could be our matching value. Solution is to break the query into two parts
    each targetting a single column. MySQL is a lot happier about this and
    query times have dropped from 30 seconds on USEast to 18ms (9ms per query).
DBEntryAdaptor.pm 75.6 KB