Limit 1 after filter in django

Question

SystemsV2.objects.filter(Q(sysname = 'DC_BW_SBX_S4H') | Q(sysname='DC_BW_DEV_S4H')).values('sysname')

Executing the above command gives this output,

<QuerySet [{'sysname': 'DC_BW_SBX_S4H'}, {'sysname': 'DC_BW_SBX_S4H'}, {'sysname': 'DC_BW_DEV_S4H'}]>

How can we make it so that only one of each exists in the result. For example,

<QuerySet [{'sysname': 'DC_BW_SBX_S4H'}, {'sysname': 'DC_BW_DEV_S4H'}]>

Asked By: Abhinav

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Answer 1

Use .distinct()

SystemsV2.objects.filter(Q(sysname = 'DC_BW_SBX_S4H') | Q(sysname='DC_BW_DEV_S4H')).values('sysname')
    .order_by('sysname').distinct()

Answered By: Ezon Zhao

Question: