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Editorial Team
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Asked: 2026-05-16T00:00:29+00:00

My table looks like this: {‘name’:’Rupert’, ‘type’:’Unicorn’, ‘actions’:[ {‘time’:0, ‘position’:[0,0], ‘action’:’run’}, {‘time’:50, ‘position’:[50,0], ‘action’:’stoprun’},

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My “table” looks like this:

{'name':'Rupert', 'type':'Unicorn', 'actions':[
    {'time':0, 'position':[0,0], 'action':'run'},
    {'time':50, 'position':[50,0], 'action':'stoprun'},
    {'time':50, 'position':[50,0], 'action':'jump'},
    {'time':55, 'position':[50,0], 'action':'laugh'},
    ...
]}

Is there any way I can index the items within the actions list? Or do I have to split them up into further tables?

It would be a lot more convenient for me to keep the actions within the current table row.

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1 Answer

  1. Editorial Team

    Thanks to skot in #mongodb!!

    One solution is:

    [...].ensureIndex({"actions.time":1})

    for creating an index on the time field within the actions list.

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