You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@arrow.apache.org by David Li <li...@apache.org> on 2022/04/02 15:25:09 UTC

Re: [DISCUSS] [FlightSQL] More metadata for columns

This looks like a fairly straightforward addition, I assume this is also needed as part of JDBC/ODBC support? I've left a couple comments on the PR.

On Tue, Mar 29, 2022, at 16:05, Rafael Telles wrote:
> Hi everyone,
>
> On Flight SQL, a column metadata field is needed in order to better
> disambiguate between SQL column types, for example: A datasource can have
> different types for string data, like TEXT, VARCHAR, NVARCHAR, etc.
> Currently there is no way of telling the proper column type name on query
> results from Flight SQL
>
> We propose adding a "ARROW:FLIGHT:SQL:TYPE_NAME" entry on field metadata,
> you can see the implementation on this PR:
> https://github.com/apache/arrow/pull/12747