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	<title>Roger Kim &#8211; Noise</title>
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		<title>Achieve the best price-performance in Amazon Redshift with elastic histograms for selectivity estimation</title>
		<link>https://noise.getoto.net/2024/10/25/achieve-the-best-price-performance-in-amazon-redshift-with-elastic-histograms-for-selectivity-estimation/</link>
		
		<dc:creator><![CDATA[Roger Kim]]></dc:creator>
		<pubDate>Fri, 25 Oct 2024 16:09:40 +0000</pubDate>
				<category><![CDATA[Amazon Redshift]]></category>
		<category><![CDATA[Analytics]]></category>
		<category><![CDATA[Intermediate (200)]]></category>
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					<description><![CDATA[Amazon Redshift now offers enhanced query performance with optimizations such as Enhanced Histograms for Selectivity Estimation in the absence of fresh statistics by relying on metadata statistics gathered during ingestion. In this post, we cover new performance optimizations in Redshift data warehouse query processing and how elastic histogram statistics help enhance selectivity estimation and the overall quality of query plans for Amazon Redshift data warehouse queries in the absence of fresh table statistics.]]></description>
		
		
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