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How big is too big size for table in AWS Redshift

原文 2016-02-01 14:57:39 2 2 database/ amazon-redshift

当前，我们的表大小之一是5亿行（35列），并且我们正在尝试确定在影响该表上的查询性能之前，该表可以有多大？

2 answers

Performance cannot be measured like rows*columns.

It depends on the data types, joins, aggregations, etc. Your query performance can be drastically improved, for example, by creating int keys (adding columns) instead of char/varchar keys if used in joins.

An important addition to @vtuhtan 's answer : enable compression. Create tables with compression enabled for various data types - lzo, runlength etc. Proper compression type is also suggested by Redshif on tables with ANALYZE COMPRESSION SQL command. This reduces the read throughput and drastically increases your query performance. This will also make the table consume less storage space.

Doc on analyzing compression enabled tables

Loading tables with compression.

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Related Question MongoDB file size too big How big is too big for a view in MySQL InnoDB? Update query too slow on big PostgreSQL table phpmyadmin on cpanel is too slow when a table gets too big. How do others deal with this? When is a query too big? UPDATE by PRIMARY KEY query is too slow on big table Importing big csv file with too many columns into a table in SQL Server Optimal row size to fetch at a time from a big table Should I split a table which has big size data? Cassandra, how to filter and update a big table dynamically?

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How big is too big size for table in AWS Redshift

Question

2 answers

solution1
1 ACCPTED 2016-02-01 15:18:27

solution2
1 2016-02-02 13:56:48

How big is too big size for table in AWS Redshift

Question

2 answers

solution1 1 ACCPTED 2016-02-01 15:18:27

solution2 1 2016-02-02 13:56:48

solution1
1 ACCPTED 2016-02-01 15:18:27

solution2
1 2016-02-02 13:56:48