Re: [DISCUSS] Arrow 1.0 Compatibility Issues: Union and Interval

2018-03-31 Thread Wes McKinney
Sorry for increasing the confusion with my e-mail. When you said "JavaScript" I understand you mean now "JSON". It sounds like in Java you will want to have a specialized union that cannot have nested types as its children. Perhaps this could implement a more generic union API, but I will leave

Re: arrow-dev gmane mirror?

2018-03-31 Thread Wes McKinney
+1 On Sat, Mar 31, 2018 at 2:39 PM, Antoine Pitrou wrote: > > Hello, > > I'd like to propose we create a gmane mirror of this mailing-list > (arrow-dev). gmane.org is a service providing a NNTP gateway for > mailing-lists. There are already gmane mirrors for many Apache >

[jira] [Created] (ARROW-2374) [Rust] Add support for array of List

2018-03-31 Thread Andy Grove (JIRA)
Andy Grove created ARROW-2374: - Summary: [Rust] Add support for array of List Key: ARROW-2374 URL: https://issues.apache.org/jira/browse/ARROW-2374 Project: Apache Arrow Issue Type: New Feature

arrow-dev gmane mirror?

2018-03-31 Thread Antoine Pitrou
Hello, I'd like to propose we create a gmane mirror of this mailing-list (arrow-dev). gmane.org is a service providing a NNTP gateway for mailing-lists. There are already gmane mirrors for many Apache mailing-lists such as Maven and httpd, living under the "gmane.comp.apache" hierarchy. The

[jira] [Created] (ARROW-2373) [Rust] Investigate alternate ways to acheive byte-aligned memory

2018-03-31 Thread Andy Grove (JIRA)
Andy Grove created ARROW-2373: - Summary: [Rust] Investigate alternate ways to acheive byte-aligned memory Key: ARROW-2373 URL: https://issues.apache.org/jira/browse/ARROW-2373 Project: Apache Arrow

Re: How nested can List types be?

2018-03-31 Thread Wes McKinney
hi Andy, In List, the type T can be any other type, including other lists. In the C++ library we limit nesting to 64 levels by default, but this is a failsafe parameter to permit accidental creation of deeply nested schemas (see arrow/ipc/message.h) HTH Wes On Sat, Mar 31, 2018 at 11:40 AM,

How nested can List types be?

2018-03-31 Thread Andy Grove
The layout document gives examples of List and List but it wasn't clear to me from this document if the intent is to support nesting at deeper levels such as List>. Could someone clear that up for me? Thanks, Andy.