; >
> > public Collection augment(ByteBuffer key, ColumnFamily
> update) {
> >
> > the names returned by the update.getColumnNames() for an update of a
> table with two clustering columns and had a regular column update produced
> two CellName/Cells:
> >
&g
g to extract all the data from the
> incoming updates
>
> so for
>
> public Collection augment(ByteBuffer key, ColumnFamily update) {
>
> the names returned by the update.getColumnNames() for an update of a table
> with two clustering columns and had a regular colum
without values is a delete of the Cell.
Regards,
Jacques-Henri Berthemet
From: Carl Mueller
Reply-To: "user@cassandra.apache.org"
Date: Wednesday 10 April 2019 at 23:53
To: "user@cassandra.apache.org"
Subject: cass-2.2 trigger - how to get clustering columns and value?
We have a
all the data from the
incoming updates
so for
public Collection augment(ByteBuffer key, ColumnFamily
update) {
the names returned by the update.getColumnNames() for an update of a table
with two clustering columns and had a regular column update produced two
CellName/Cells:
one has no name
in a time series use case and remove the need for time buckets in your
partition key.
On 3 October 2017 at 15:30, eugene miretsky <eugene.miret...@gmail.com>
wrote:
> Hi,
>
> Clustering columns are used to order the data in a partition. However,
> since data is split into
Hi,
Clustering columns are used to order the data in a partition. However,
since data is split into SSTables, the rows are ordered by clustering key
only within each SSTable. Cassandra still needs to check all SSTables, and
merge the data if it is found in several SSTables. The only scanario
>
> * @Query("SELECT * FROM ticket_by_member WHERE project_id = ? AND
> member_id IN(?)" )*
>
> *Result cardsByMembers(String projectId,
> List memberIds);*
>
> But when I call this method, I get the exception:
>
> java.util.concurrent.ExecutionExcept
ent.ExecutionException:
com.datastax.driver.core.exceptions.InvalidQueryException: Cannot restrict
clustering columns by IN relations when a collection is selected by the
query
Any ideas on why this isn't working?
t; There is nothing wrong with your schema, but just remember that because to
> set everything except one as clustering columns, updating them is no longer
> possible. To "update" the value of one of those columns you'll need to do a
> DELETE + INSERT.
>
> Example:
>
&g
There is nothing wrong with your schema, but just remember that because to
set everything except one as clustering columns, updating them is no longer
possible. To "update" the value of one of those columns you'll need to do a
DELETE + INSERT.
Example:
with normal schema: UPDATE h
Hi All,
Is there any problem having too many clustering columns? My goal is to
store data by columns in order and for any given partition (primary key)
each of its non-clustering column (columns that are not part of primary
key) can lead to a new column underneath or the CQL equivalent would
ARY KEY ((hotel_id), rate_code)
>> );
>>
>> When executing the query:
>>
>> select rates from rates_by_code where hotel_id='AZ123' and rate_code IN
>> ('ABC', 'DEF', 'GHI');
>>
>> I receive the response message:
>>
>> Cannot restrict clustering c
gt;
> I receive the response message:
>
> Cannot restrict clustering columns by IN relations when a collection is
> selected by the query.
>
> If I select a non-collection column such as "description", no error occurs.
>
> Why does this restriction exist? Is
');
I receive the response message:
Cannot restrict clustering columns by IN relations when a collection is
selected by the query.
If I select a non-collection column such as "description", no error occurs.
Why does this restriction exist? Is this a restriction that is still necess
Hey there,
I have imported the following schema to my cassandra db
to use the cassandra-stress tool with clustering columns?
I am trying to figure out whether an application that I'm running on
is slow because of my application logic, C* data model, or underlying
C* setup (e.g., I need more nodes or to tune some parameters).
My application uses tables with several
://github.com/Mishail/CqlJmeter
-M
On 8/17/14 12:26, Clint Kelly wrote:
Hi all,
Is there a way to use the cassandra-stress tool with clustering columns?
I am trying to figure out whether an application that I'm running on
is slow because of my application logic, C* data model, or underlying
The stress tool in 2.1 also now supports clustering columns:
http://www.datastax.com/dev/blog/improved-cassandra-2-1-stress-tool-benchmark-any-schema
There are however some features up for revision before release in order to
help generate realistic workloads. See
https://issues.apache.org/jira
Thanks for the update, Benedict. We are still using 2.0.9
unfortunately. :/ I will keep that in mind for when we upgrade.
On Tue, Aug 19, 2014 at 10:51 AM, Benedict Elliott Smith
belliottsm...@datastax.com wrote:
The stress tool in 2.1 also now supports clustering columns:
http
using 2.0.9
unfortunately. :/ I will keep that in mind for when we upgrade.
On Tue, Aug 19, 2014 at 10:51 AM, Benedict Elliott Smith
belliottsm...@datastax.com wrote:
The stress tool in 2.1 also now supports clustering columns:
http://www.datastax.com/dev/blog/improved-cassandra-2-1-stress
Hi all,
Is there a way to use the cassandra-stress tool with clustering columns?
I am trying to figure out whether an application that I'm running on
is slow because of my application logic, C* data model, or underlying
C* setup (e.g., I need more nodes or to tune some parameters).
My
columns make a big difference in
write performance?
On Sun, Aug 17, 2014 at 12:26 PM, Clint Kelly clint.ke...@gmail.com wrote:
Hi all,
Is there a way to use the cassandra-stress tool with clustering columns?
I am trying to figure out whether an application that I'm running on
is slow because
' ALLOW FILTERING
On Fri, Feb 28, 2014 at 6:57 AM, Clint Kelly clint.ke...@gmail.comwrote:
All,
Is there any way to have inequalities comparisons on multiple clustering
columns in a WHERE clause in CQL? For example, I'd like to do:
select * from foo where fam = 'Info' and qual 'A' and qual 'D
All,
Is there any way to have inequalities comparisons on multiple clustering
columns in a WHERE clause in CQL? For example, I'd like to do:
select * from foo where fam = 'Info' and qual 'A' and qual 'D' and
version 2013 ALLOW FILTERING;
I get an error:
Bad Request: PRIMARY KEY part
way to have inequalities comparisons on multiple clustering
columns in a WHERE clause in CQL? For example, I'd like to do:
select * from foo where fam = 'Info' and qual 'A' and qual 'D' and
version 2013 ALLOW FILTERING;
I get an error:
Bad Request: PRIMARY KEY part version cannot
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