TL;DR InfluxDB Tech Tips - Customizing GROUP by Time() Windows & Series Cardinality

In this article, we recap the week's most interesting InfluxDB and TICK-stack related issues, workarounds for customizing GROUP by time() windows and series cardinality, and Q&A from GitHub, IRC, and the InfluxDB Google Group. Regular expressions in the WHERE clause can be used with proper operators, such as =~ for positive matches or !~ for negative matches. Additionally, retention policies do not affect series cardinality, as the series index only applies to unique measurement and tagset combinations. Furthermore, time windows returned by a GROUP BY time() query can be customized using an offset interval starting from InfluxDB version 0.13. These customizations allow users to fine-tune their queries for better performance. For more information on these topics and others, the article provides links to frequently encountered issues, virtual training seminars, and other resources.

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