Filtering on primary key with nullable column in cassandra versions 1.2.5 and greater

Filtering on primary key with nullable column in cassandra versions 1.2.5 and greater

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Filtering on primary key with nullable column in cassandra versions 1.2.5 and greater
Tag : cassandra , By : Dasharath Yadav
Date : November 24 2020, 03:41 PM

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Alter cassandra column family primary key using cassandra-cli or CQL

Tag : cassandra , By : eferro
Date : March 29 2020, 07:55 AM
Hope that helps The primary keys directly determine how and where cassandra stores the data contained in a table (column family). The primary key consists of partition key and clustering key (optional).

Why can't I add WHERE clauses in Cassandra after filtering on the primary key?

Tag : cassandra , By : Blight
Date : March 29 2020, 07:55 AM
Hope this helps There are two answers to your question here. One specific to your example, and a more general answer (which is probably what you are really after).
Answer for your example

Is primary index created on clustering column of a compound primary key in cassandra?

Tag : development , By : S Hall
Date : March 29 2020, 07:55 AM
this will help No, an index is not automatically created on the clustering column of a composite key.
If you created a secondary index on the clustering column you would actually suffer a performance hit when querying by it. Secondary indexes in Cassandra exist for convenience, not for performance. The bottom line is that they don't scale well, and a single query usually ends up having to hit several nodes in your cluster.

Cannot define PRIMARY KEY Constraint on nullable column when column is already NOT NULL

Tag : sql , By : user183676
Date : March 29 2020, 07:55 AM

How to maintain the last N versions of primary key in Cassandra?

Tag : cassandra , By : Doug
Date : March 29 2020, 07:55 AM
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