What is 'partition pruning' in SAP HAN - SAP HANA?

partition pruning - Overview

• Component: HAN

• Component Name: SAP HANA

• Description: SAP A A feature of the column store that makes it possible to restrict the execution of a query to specific partitions or to a single partition if the WHERE clause of the query matches the partition criteria For example, if a table is partitioned by year, a query on the data of one year is executed only on the partition containing the data for this year. Partition pruning can improve peformance and optimize the loading of data into memory.

partition pruning - Details

• 
  Key Concepts: 
  Partition pruning is a feature of SAP HANA that allows for the optimization of query performance by reducing the amount of data that needs to be scanned. It works by analyzing the query and determining which partitions of data are relevant to the query, and then only scanning those partitions. This reduces the amount of time needed to execute the query, as well as the amount of data that needs to be processed.
  
  How to use it: 
  Partition pruning can be enabled in SAP HANA by setting the “partition_pruning” parameter in the system configuration. Once enabled, queries will automatically take advantage of partition pruning when applicable. It is important to note that partition pruning is only applicable when querying tables that have been partitioned. 
  
  Tips & Tricks: 
  When using partition pruning, it is important to ensure that the partitions are properly configured. This includes making sure that the partitions are properly sized and that they are aligned with the query patterns. Additionally, it is important to monitor query performance to ensure that partition pruning is having a positive effect on query performance. 
  
  Related Information: 
  For more information on partition pruning, please refer to SAP’s official documentation on partition pruning in SAP HANA. Additionally, there are several blogs and tutorials available online that provide more detailed information on how to configure and use partition pruning