ObsessionDB Blog https://evren.so/obsessiondb/blog Data, infra, benchmarks, and tooling for ClickHouse performance and managed database infrastructure. Wed, 15 Apr 2026 00:00:00 GMT https://validator.w3.org/feed/docs/rss2.html https://github.com/jpmonette/feed en ObsessionDB Blog https://evren.so/obsessiondb/favicon-light-v2.svg https://evren.so/obsessiondb/blog All rights reserved 2026, ObsessionDB <![CDATA[ClickHouse® Query Optimization: What Makes It Fast and What Kills It]]> https://evren.so/obsessiondb/blog/clickhouse-query-optimization-what-makes-it-fast https://evren.so/obsessiondb/blog/clickhouse-query-optimization-what-makes-it-fast Wed, 15 Apr 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[ClickHouse® Projections: The Complete Guide]]> https://evren.so/obsessiondb/blog/clickhouse-projections-complete-guide https://evren.so/obsessiondb/blog/clickhouse-projections-complete-guide Sat, 04 Apr 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[You Don't Need a Separate Pipeline Between Your Warehouse and Your Real-time APIs]]> https://evren.so/obsessiondb/blog/eliminate-pipeline-warehouse-realtime-api https://evren.so/obsessiondb/blog/eliminate-pipeline-warehouse-realtime-api Wed, 01 Apr 2026 00:00:00 GMT Rafael Aviles Infra <![CDATA[How we detect outliers in real time using ClickHouse®]]> https://evren.so/obsessiondb/blog/real-time-outlier-detection-clickhouse https://evren.so/obsessiondb/blog/real-time-outlier-detection-clickhouse Tue, 31 Mar 2026 00:00:00 GMT Jose Enrique Barco Data <![CDATA[CollapsingMergeTree: Current State from Event Streams]]> https://evren.so/obsessiondb/blog/collapsingmergetree-current-state-event-streams https://evren.so/obsessiondb/blog/collapsingmergetree-current-state-event-streams Thu, 26 Mar 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[How we feed OHLC candles to TradingView from ClickHouse® DB]]> https://evren.so/obsessiondb/blog/ohlc-candles-tradingview-clickhouse https://evren.so/obsessiondb/blog/ohlc-candles-tradingview-clickhouse Thu, 19 Mar 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[AI Coding Agent Analytics: What 1,573 Sessions Taught Us]]> https://evren.so/obsessiondb/blog/ai-coding-agent-analytics-1573-sessions https://evren.so/obsessiondb/blog/ai-coding-agent-analytics-1573-sessions Tue, 17 Mar 2026 00:00:00 GMT Alvaro Garcia Tooling <![CDATA[ClickHouse® AggregatingMergeTree: Rollups That Scale]]> https://evren.so/obsessiondb/blog/aggregatingmergetree-rollups-that-scale https://evren.so/obsessiondb/blog/aggregatingmergetree-rollups-that-scale Sun, 15 Mar 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[Current State with ClickHouse® ReplacingMergeTree]]> https://evren.so/obsessiondb/blog/replacingmergetree-current-state https://evren.so/obsessiondb/blog/replacingmergetree-current-state Tue, 10 Mar 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[ClickHouse® ReplacingMergeTree: Deduplication Done Right]]> https://evren.so/obsessiondb/blog/replacingmergetree-deduplication-done-right https://evren.so/obsessiondb/blog/replacingmergetree-deduplication-done-right Thu, 05 Mar 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[Data Modelling in ClickHouse®: Engines, Tables, and Materialisations]]> https://evren.so/obsessiondb/blog/data-modelling-clickhouse-engines-tables-materialisations https://evren.so/obsessiondb/blog/data-modelling-clickhouse-engines-tables-materialisations Wed, 25 Feb 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[How We Built a Stateless Distributed Cache for ClickHouse]]> https://evren.so/obsessiondb/blog/stateless-distributed-cache-clickhouse https://evren.so/obsessiondb/blog/stateless-distributed-cache-clickhouse Sun, 22 Feb 2026 00:00:00 GMT Marc Leuthardt Infra <![CDATA[ObsessionDB vs. ClickHouse Cloud in the 10B Row Benchmark]]> https://evren.so/obsessiondb/blog/obsessiondb-vs-clickhouse-cloud-10b-benchmark https://evren.so/obsessiondb/blog/obsessiondb-vs-clickhouse-cloud-10b-benchmark Wed, 18 Feb 2026 00:00:00 GMT Marc Leuthardt Benchmarks <![CDATA[AI Skills for ClickHouse: Optimization Patterns proven at 100B+ rows]]> https://evren.so/obsessiondb/blog/ai-skills-clickhouse-optimization-patterns https://evren.so/obsessiondb/blog/ai-skills-clickhouse-optimization-patterns Sat, 14 Feb 2026 00:00:00 GMT Alvaro Garcia Tooling <![CDATA[Scale SigNoz on ObsessionDB and ClickHouse® Cloud: No Sharding Required]]> https://evren.so/obsessiondb/blog/scale-signoz-on-obsessiondb https://evren.so/obsessiondb/blog/scale-signoz-on-obsessiondb Thu, 12 Feb 2026 00:00:00 GMT Marc Leuthardt Tooling <![CDATA[ClickHouse® Materialized Views: Patterns and Pitfalls]]> https://evren.so/obsessiondb/blog/clickhouse-materialized-views-patterns-pitfalls https://evren.so/obsessiondb/blog/clickhouse-materialized-views-patterns-pitfalls Tue, 10 Feb 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[ClickHouse® Database: What It Is, How It Works, and When It Falls Apart]]> https://evren.so/obsessiondb/blog/clickhouse-what-it-is-how-it-works-when-it-falls-apart https://evren.so/obsessiondb/blog/clickhouse-what-it-is-how-it-works-when-it-falls-apart Sat, 07 Feb 2026 00:00:00 GMT Alvaro Garcia Data <![CDATA[The Hard Truth About Self-Hosting ClickHouse® at Scale]]> https://evren.so/obsessiondb/blog/hard-truth-self-hosting-clickhouse https://evren.so/obsessiondb/blog/hard-truth-self-hosting-clickhouse Sun, 25 Jan 2026 00:00:00 GMT Alvaro Garcia Infra <![CDATA[Cutting Our ClickHouse Bill in Half: The Story Behind ObsessionDB]]> https://evren.so/obsessiondb/blog/announcement https://evren.so/obsessiondb/blog/announcement Tue, 20 Jan 2026 00:00:00 GMT Marc Höffl Infra