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ClickHouse: geo search
Today we will explore how to save geographical polygons in ClickHouse to see if a set of coordinates falls inside one of them. TL;DR Clone the demo in https://github.com/pachico/demo-clickhouse-geo-search and follow instruction or keep reading for some notes.
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ClickHouse: RabbitMQ engine
Today we will explore the new RabbitMQ engine in ClickHouse, introduced in version 20.8. Those of you familiar with Kafka engine might already know what to expect from this engine.
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ClickHouse: Redis as source for dictionaries
If two technologies make my heart bit louder, those are ClickHouse and Redis. Two very different databases, born to solve very different problems that, since ClickHouse 20.8, can work together.
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