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	<title>Kalaiselvi Kamaraj &#8211; Noise</title>
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		<title>Achieve 2x faster data lake query performance with Apache Iceberg on Amazon Redshift</title>
		<link>https://noise.getoto.net/2025/11/27/achieve-2x-faster-data-lake-query-performance-with-apache-iceberg-on-amazon-redshift/</link>
		
		<dc:creator><![CDATA[Kalaiselvi Kamaraj]]></dc:creator>
		<pubDate>Wed, 26 Nov 2025 22:16:15 +0000</pubDate>
				<category><![CDATA[Amazon Redshift]]></category>
		<category><![CDATA[announcements]]></category>
		<category><![CDATA[Intermediate (200)]]></category>
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					<description><![CDATA[In 2025, Amazon Redshift delivered several performance optimizations that improved query performance over twofold for Iceberg workloads on Amazon Redshift Serverless, delivering exceptional performance and cost-effectiveness for your data lake workloads. In this post, we describe some of the optimizations that led to these performance gains.]]></description>
		
		
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		<title>Accelerate Amazon Redshift Data Lake queries with AWS Glue Data Catalog Column Statistics</title>
		<link>https://noise.getoto.net/2024/10/01/accelerate-amazon-redshift-data-lake-queries-with-aws-glue-data-catalog-column-statistics/</link>
		
		<dc:creator><![CDATA[Kalaiselvi Kamaraj]]></dc:creator>
		<pubDate>Tue, 01 Oct 2024 20:45:00 +0000</pubDate>
				<category><![CDATA[Amazon Redshift]]></category>
		<category><![CDATA[Amazon Redshift Spectrum]]></category>
		<category><![CDATA[Amazon Simple Storage Service (S3)]]></category>
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		<category><![CDATA[Data Lake]]></category>
		<category><![CDATA[Optimization]]></category>
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					<description><![CDATA[Over the last year, Amazon Redshift added several performance optimizations for data lake queries across multiple areas of query engine such as rewrite, planning, scan execution and consuming AWS Glue Data Catalog column statistics. In this post, we highlight the performance improvements we observed using industry standard TPC-DS benchmarks. Overall execution time of TPC-DS 3 TB benchmark improved by 3x. Some of the queries in our benchmark experienced up to 12x speed up.]]></description>
		
		
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