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"Application of Apache Doris in Pocket Xianji Network Technology"_Apache Doris Summit 2022

Beijing Pocket Xianji Network Technology Co., Ltd.
The e-commerce SaaS has clear requirements for lightweight architecture, query flexibility, and resource isolation mechanism. However, with the increase in the amount of data, ClickHouse we used has significantly reduced JOIN performance and cannot meet the needs of flexible scaling out. Therefore, we introduced Apache Doris to replace ClickHouse, and migrated all the basic data previously stored in MySQL to Doris, which not only greatly improved the efficiency of ETL, but also greatly reduced storage costs. Further, the storage space was 40% less than before. At the same time, the performance of wide table JOIN is further improved.

Apache Doris is a real-time analytical database based on MPP architecture, known for its high performance and ease of use. It supports both high-concurrency point queries and high-throughput complex analysis. (

SelectDB is a cloud-native real-time data warehouse developed based on the Apache Doris open source project by the same key developers. The SelectDB company focuses on the enterprise-grade cloud-native distribution for Apache Doris. (Contact US:

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Timeless DEV post...

Git Concepts I Wish I Knew Years Ago

The most used technology by developers is not Javascript.

It's not Python or HTML.

It hardly even gets mentioned in interviews or listed as a pre-requisite for jobs.

I'm talking about Git and version control of course.

One does not simply learn git