Pavel Tupitsyn created IGNITE-4070:
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Summary: .NET: Introduce transformers to SCAN queries
Key: IGNITE-4070
URL: https://issues.apache.org/jira/browse/IGNITE-4070
Project: Ignite
Issue Type
ow
> these
> > > > > > > > transformers
> > > > > > > > > will work for example with SQL, but this API makes you
> think
> > > that
> > > > > > > > > transformers are supported for all the query types.
> > > > > &
; > > > > > qry, Transformer<E, R> transfomer);
> > > > > > >
> > > > > > > It allows provide transformers for all query types and chnages
> > will
> > > > be
> > > > > > > related only with query cursor fun
w we have method: public QueryCursor query(Query
> > > qry);
> > > > > > > >
> > > > > > > > New method will be something like this: QueryCursor
> > > > > > query(Query
> > > > > > > > qry, Transfor
> > > > >
> > > > > > On Thu, Feb 4, 2016 at 11:13 AM, Andrey Kornev <
> > > > andrewkor...@hotmail.com
> > > > > >
> > > > > > wrote:
> > > > > >
> > > > > > > Another perhaps bigger
ich may result in the query returning incomplete result. And while it
> > is
> > > possible to solve this problem for the scan queries by using some
> clever
> > > tricks, all bets are off with the SQL queries.Andrey
> > > _
> > > From
> is
> > possible to solve this problem for the scan queries by using some clever
> > tricks, all bets are off with the SQL queries.Andrey
> > _
> > From: Valentin Kulichenko <valentin.kuliche...@gmail.com>
> > Sent: Thursday,
; queries) using closures was discussed at length on the @dev not so
> long
> > > > ago. It has to do with partitions migration due to cluster topology
> > > changes
> > > > which may result in the query returning incomplete result. And while
> it
> >
gt; > Valentin,
> > >
> > > Wouldn’t the same effect be achieved by broadcasting a closure to the
> > > cluster and executing scan-query on every node locally?
> > >
> > > D.
> > >
> > > On Wed, Feb 3, 2016 at 9:17 PM, Valentin Kul
it is possible to solve
this problem for the scan queries by using some clever tricks, all bets are off
with the SQL queries.Andrey
_
From: Valentin Kulichenko <valentin.kuliche...@gmail.com>
Sent: Thursday, February 4, 2016 6:29 AM
Subject: Re: Transformers in SCAN q
getting requests from our users to add optional transformers to
> SCAN
> > queries. This will allow to iterate through cache, but do not transfer
> > whole key-value pairs across networks (e.g., get only keys). The feature
> > looks useful and I created a ticket [1].
>
Valentin Kulichenko created IGNITE-2546:
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Summary: Need to introduce transformers to SCAN queries
Key: IGNITE-2546
URL: https://issues.apache.org/jira/browse/IGNITE-2546
Project: Ignite
ur users to add optional transformers to SCAN
> queries. This will allow to iterate through cache, but do not transfer
> whole key-value pairs across networks (e.g., get only keys). The feature
> looks useful and I created a ticket [1].
>
> I am struggling with the design now. The prob
Igniters,
I keep getting requests from our users to add optional transformers to SCAN
queries. This will allow to iterate through cache, but do not transfer
whole key-value pairs across networks (e.g., get only keys). The feature
looks useful and I created a ticket [1].
I am struggling
asting a closure to the
> > cluster and executing scan-query on every node locally?
> >
> > D.
> >
> > On Wed, Feb 3, 2016 at 9:17 PM, Valentin Kulichenko <
> > valentin.kuliche...@gmail.com> wrote:
> >
> > > Igniters,
> > >
> >
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