https://sudonull.com/clickhouse-materialized-views-nuances-and-solutions
How MV Works in ClickHouse? Critical Differences from Classical DBMS, UPDATE/DELETE Limitations and Best Practices. Learn How to Avoid Design Errors.
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In this project
https://sudonull.com/clickhouse-materialized-views-triggers-on-insert
How MV work in ClickHouse: incremental aggregation, chains minute→hour→day, Null+Kafka pattern, POPULATE and its dangers. Examples with SummingMergeTree and AggregatingMergeTree.
https://sudonull.com/mv-in-clickhouse-data-loss-and-control
Analysis of risks of materialized views in ClickHouse: schema errors, block insert, monitoring system.query_views_log. How to avoid losses in production. Practical code examples.
https://sudonull.com/clickhouse-deduplication-and-losses-in-mv
Analysis of data losses in ClickHouse due to block deduplication in materialized views. Settings insert_deduplicate=0 and deduplicate_blocks_in_dependent_materialized_views=1. Configure lossless storage — read the details.
https://sudonull.com/summingmergetree-and-aggregatingmergetree-in-clickhouse
Incremental aggregation in ClickHouse: how SummingMergeTree and AggregatingMergeTree speed up dashboards by 100 times. Examples, materialized views, pitfalls, and comparison.
From other projects
https://ymaho.com/uk-sanctions-easing-fuel-imports-from-russia
Why London Allowed Imports of Diesel and Aviation Kerosene from Russian Raw Materials and How It Will Change the Market. Find Out Who Benefits from the Sanctions Adjustment.
https://ymaho.com/brent-crude-113-price-shock-in-the-middle-east
Brent crude has settled above $113 due to the crisis in the Strait of Hormuz. We analyze the causes of the surge, market reaction, and analyst forecasts up to $150. Find out how geopolitics affects prices.
https://ymaho.com/oil-prices-below-102-record-drop-in-inventories
Oil corrected to $101, but IEA sounds alarm over record inventory drawdown. Find out why the market expects a price explosion and how to prepare for it.
https://ymaho.com/brent-oil-112-why-the-collapse-of-us-iran-talks-is-just-the-beginning
The collapse of US-Iran talks halted 'gray' oil exports, creating a deficit of 900,000 barrels per day. We analyze the real reasons for Brent's jump to $112 and a forecast up to $118. Read insider analysis.
From the web
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