calcite-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hartman, Trevor" <thart...@ebay.com>
Subject Re: Guidance for writing a Calcite adapter for a deep hierarchical dataset
Date Wed, 08 Oct 2014 19:05:38 GMT
Ah, aren't MongoDB and JSON both examples of hierarchical datasets?

From: Vladimir Sitnikov <sitnikov.vladimir@gmail.com><mailto:sitnikov.vladimir@gmail.com>
Reply: dev@optiq.incubator.apache.org <dev@optiq.incubator.apache.org>><mailto:dev@optiq.incubator.apache.org>
Date: October 8, 2014 at 12:52:53 PM
To: dev@optiq.incubator.apache.org <dev@optiq.incubator.apache.org>><mailto:dev@optiq.incubator.apache.org>
Subject:  Re: Guidance for writing a Calcite adapter for a deep hierarchical dataset

Here's relevant issue: https://issues.apache.org/jira/browse/OPTIQ-207

In two words: unfortunately Calcite's type system does not handle
multilevel types and/or recursive data types yet.

‚Äč--
Vladimir
Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message