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From "Thejas M Nair (JIRA)" <>
Subject [jira] [Commented] (HIVE-9500) Support nested structs over 24 levels.
Date Wed, 28 Jan 2015 22:31:34 GMT


Thejas M Nair commented on HIVE-9500:

I believe the reason why I limited it to 24 was because chars up to ascii value 24 are not
likely to be seen in the data in most cases. As a result you could get away without escaping
those chars. I also felt that when dealing with larger levels of nesting, other formats such
as ORC would be a better choice.

> Support nested structs over 24 levels.
> --------------------------------------
>                 Key: HIVE-9500
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Aihua Xu
>              Labels: SerDe
> Currently we support up to 24 levels of nested structs when hive.serialization.extend.nesting.levels
is set to true, while the customers have the requirement to support more than that. 
> It would be better to make the supported levels configurable or completely removed (i.e.,
we can support any number of levels). 

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