April 2017
Beginner to intermediate
360 pages
9h 35m
English
Content preview from Learning Apache Cassandra - Second Edition
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Selecting a slice of a partition
With a solid understanding of the UUID functions we're using in this query, we can now break down exactly what we're asking Cassandra to give us:
- Rows in the alice partition
- With an id that is greater than or equal to the minimum possible UUID generated on May 1, 2014
- With an id that is less than or equal to the maximum possible UUID generated on May 31, 2014
This is a very common query pattern in Cassandra and is referred to as a range slice query. A range slice query selects a single partition key and a range of clustering column values. Like a query that is purely restricted by partition key, range slice queries are very efficient, as they take advantage of the underlying layout of the data in the table. ...
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