Hi all,
I was wondering if it is possible to apply aggregations only on a set of
nested objects (not all nested objects presents inside a document),
according to a property of this object? I think an example will help to
understand.
Let's say that you have the following documents inthe index:
{
"a": 2,
"b": 3,
"c": 4,
"d": [
{
"toto": 1,
"tutu": 2,
"titi": 3
},
{
"toto": 2,
"tutu": 5,
"titi": 6
},
{
"toto": 3,
"tutu": 11,
"titi": 8
},
{
"toto": 4,
"tutu": 7,
"titi": 4
}
]
}
{
"a": 3,
"b": 4,
"c": 5,
"d": [
{
"toto": 1,
"tutu": 10,
"titi": 6
},
{
"toto": 2,
"tutu": 65,
"titi": 8
},
{
"toto": 3,
"tutu": 25,
"titi": 15
},
{
"toto": 4,
"tutu": 30,
"titi": 45
}
]
}
Where "d" is indexed as nested. I would like to get the maximum value for
the "tutu" property from this kind of documents, but I would like to work
only on nested objects where "toto" = 1. Here, I would like to get 10 (the
red one in the samples), and not 65.
Is it possible to do this kind of aggregation? Or have I to change my
document structure (or index mapping or ...)? If it is possible, could you
point me how to do it? I had a look at nested aggregations and filter ones,
but I am not sure that it could help.
Thank you for your replies.
Regards,
Loïc
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