> > 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/Cel
x27;m just trying 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 ha
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
st trying 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 column update produced two
CellName/Cel
ffectively
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
wrote:
> Hi,
>
> Clustering columns are used to order the data in a partition. However,
> since data is split into SSTables, the rows are ord
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
ROM 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.ExecutionException: com.datastax.driver.core.
> exceptions.Inv
ecutionException:
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?
g 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 sch
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: UPD
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 be a
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
7;, 'DEF', 'GHI');
>
> 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
',
'DEF', 'GHI');
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 thi
You need to add id column to your primary key, and also you should restrict
remaining part of the primary key in your queries.
Clustering key is responsible for data sorting within the partition.
2015-06-23 10:17 GMT+03:00 ICHIBA Sara :
> Hey there,
>
> I have imported the following schema to my
Hey there,
I have imported the following schema to my cassandra db
=the schema
CREATE KEYSPACE radius WITH REPLICATION = { 'class' :
'SimpleStrategy', 'replication_factor' : 1 };
USE radius;
CREATE TABLE nas (
id uuid PRIMARY KEY,
nasname text,
shortname text,
type te
Hey there,
I have imported the following schema to my cassandra db
;> wrote:
>> > 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
ng 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
> wrote:
> > The stress tool in 2.1 also now supports clustering columns:
> >
> http://www.datastax.com/dev/blog/improved-cassandra-2
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
wrote:
> The stress tool in 2.1 also now supports clustering columns:
> http://www.datastax.com/dev/blog/im
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
ttps://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
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 se
ering columns make a big difference in
write performance?
On Sun, Aug 17, 2014 at 12:26 PM, 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 o
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)
;,2013) and qual < 'D' ALLOW FILTERING
>
>
> On Fri, Feb 28, 2014 at 6:57 AM, Clint Kelly wrote:
>
>> 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
> 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 &
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
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