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Query

General Usage of PostgreSQL hll in Retention and UV Statistics

This short article explains retention and UV statistics.

Query Resolution of MySQL 8.0 Optimizer

This article introduces how MySQL 8.0 optimizer turns a simple string into an execution sequence the database executor can return the data to the client.

Query Transformation of MySQL 8.0 Optimizer

This article introduces the complex transformation process of subqueries, partitioned tables, and JOIN operations.

Query Alibaba Cloud Resources with Steampipe

This article introduces Steampipe and explains how it can help reduce the manual steps to execute on Alibaba Cloud’s web console and retrieve details from the command line.