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Support nested list and map (dictionary) access #1005

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Igosuki opened this issue Sep 15, 2021 · 0 comments · Fixed by #1006
Closed

Support nested list and map (dictionary) access #1005

Igosuki opened this issue Sep 15, 2021 · 0 comments · Fixed by #1006
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enhancement New feature or request

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@Igosuki
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Igosuki commented Sep 15, 2021

Is your feature request related to a problem or challenge? Please describe what you are trying to do.
In structured formats, it's possible to have nested arrays and maps. In Spark for instance it's possible to do : select my_list[0][0]

Describe the solution you'd like
Access deeply nested values

Describe alternatives you've considered
I saw there is a new Map DataType in arrow-rs 6.0, but I made this before so I'm not sure where to go from there.

Additional context
I have a nested array in an Avro record I use, which is a list of tuples, a tuple is a price and a quantity of something. Sometimes I only want to get the first value of that array because I don't care about the rest.

@Igosuki Igosuki added the enhancement New feature or request label Sep 15, 2021
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