Speeding up Queries With Z-Order

[sorangutan]

Z-order is an ordering for multi-dimensional data, e.g. rows in a database table. Once data is in Z-order it is possible to efficiently search against more columns. This article reveals how Z-ordering works and how one can use it with Apache Impala. In a previous blog post, we demonstrated the power of Parquet page indexes, […]

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https://blog.cloudera.com/speeding-up-queries-with-z-order/