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https://issues.apache.org/jira/browse/CASSANDRA-7062?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Constance Eustace updated CASSANDRA-7062:
-----------------------------------------
Description:
CASSANDRA-6561 implemented static columns for a given partition key.
What this is proposing for a compound cluster key is a static column that is
static at intermediate parts of a compound cluster key. This example shows a
table modelling a moderately complex EAV pattern :
CREATE TABLE t (
entityID text,
propertyName text,
valueIndex text,
entityName text static (entityID),
propertyType text static (propertyName),
propertyRelations List<text> static (propertyName),
PRIMARY KEY (entityID, (propertyName,valueIndex))
)
So in this example has the following static columns:
- the entityName column behaves exactly as CASSANDRA-6561 details, so all
cluster rows have the same value
- the propertyName column is static with respect to the remaining parts of the
cluster key (that is, across all valueIndex values for a given propertyName)
Is this a relatively simple extension of the same mechanism in -6561, or is
this a "whoa, you have no idea what you are proposing"?
was:
CASSANDRA-6561 implemented static columns for a given partition key.
What this is proposing for a compound cluster key is a static column that is
static at intermediate parts of a compound cluster key. This example shows a
table modelling a moderately complex EAV pattern :
CREATE TABLE t (
entityID text,
propertyName text,
valueIndex text,
entityName text static (entityID),
propertyType text static (propertyName),
propertyRelations List<text> static (propertyName),
PRIMARY KEY (entityID, (propertyName,valueIndex)
)
So in this example has the following static columns:
- the entityName column behaves exactly as CASSANDRA-6561 details, so all
cluster rows have the same value
- the propertyName column is static with respect to the remaining parts of the
cluster key (that is, across all valueIndex values for a given propertyName)
Is this a relatively simple extension of the same mechanism in -6561, or is
this a "whoa, you have no idea what you are proposing"?
> Extension of static columns for compound cluster keys
> -----------------------------------------------------
>
> Key: CASSANDRA-7062
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7062
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Constance Eustace
> Priority: Minor
>
> CASSANDRA-6561 implemented static columns for a given partition key.
> What this is proposing for a compound cluster key is a static column that is
> static at intermediate parts of a compound cluster key. This example shows a
> table modelling a moderately complex EAV pattern :
> CREATE TABLE t (
> entityID text,
> propertyName text,
> valueIndex text,
> entityName text static (entityID),
> propertyType text static (propertyName),
> propertyRelations List<text> static (propertyName),
> PRIMARY KEY (entityID, (propertyName,valueIndex))
> )
> So in this example has the following static columns:
> - the entityName column behaves exactly as CASSANDRA-6561 details, so all
> cluster rows have the same value
> - the propertyName column is static with respect to the remaining parts of
> the cluster key (that is, across all valueIndex values for a given
> propertyName)
> Is this a relatively simple extension of the same mechanism in -6561, or is
> this a "whoa, you have no idea what you are proposing"?
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