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From Andrey Mashenkov <andrey.mashen...@gmail.com>
Subject Re: Ignite SQL queries's metadata
Date Thu, 20 Jul 2017 14:30:17 GMT
Hi Menglei,

It is fixed in IGNITE-5252 [1] and already merged to master,
Fix will available from 2.1 release coming.

[1] https://issues.apache.org/jira/browse/IGNITE-5252

On Wed, Jul 19, 2017 at 12:14 AM, menglei <menglei.sun@blackrock.com> wrote:

> Hi all,
>
> Currently we are heavily using the standard SQL query functionality
> provided
> by Ignite. We have a lot join across the cache and need to get many columns
> from the query.
>
> But right now the interface of SQL resultset (QueryCursor in ignite) has
> limited exposure of the API, which is an iterator of the rows and we can
> only able to use the index to get the columns or the object we want. There
> is no support for the column name based retrieve operation like JDBC. We
> also don't want to use JDBC which is not fully supported yet.
>
> The interesting part is the QueryCursorEx and the QueryCursorImpl have the
> method to get at least the metadata which we can make use of. But I am not
> confident to use the QueryCursorEx (it may be changed) in all our queries
> since the QueryCursor is the right API to use.
>
> Could someone give us some insight for how to get the metadata?
>
> Thanks,
> Menglei
>
>
>
> --
> View this message in context: http://apache-ignite-users.
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> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
>



-- 
Best regards,
Andrey V. Mashenkov

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