corpus.blog
41554 blogs · [ { "id": "01a0d595-ba5e-710a-a9c5-7b0904447e1d", "title": "ClickHouse: Visualizing data flows and tables", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2026/09/13/clickhouse-visualizing-data-flows-and-tables/", "published_at": "2026-09-12T22:00:00+00:00" }, { "id": "01a0874a-c2c5-7346-b52d-0e07cb0cf82e", "title": "Dynamic SQL in ClickHouse", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2026/07/30/dynamic-sql-in-clickhouse/", "published_at": "2026-07-29T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b0904b80713", "title": "Dynamic SQL in ClickHouse", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2026/07/30/dynamic-sql-in-clickhouse/", "published_at": "2026-07-29T22:00:00+00:00" }, { "id": "01a0874a-c2c5-7346-b52d-0e07cbed9528", "title": "ClickHouse: Aggregating Latest Values, Take Two", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2026/07/21/clickhouse-aggregating-latest-values-take-two/", "published_at": "2026-07-20T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090569a3db", "title": "ClickHouse: Aggregating Latest Values, Take Two", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2026/07/21/clickhouse-aggregating-latest-values-take-two/", "published_at": "2026-07-20T22:00:00+00:00" }, { "id": "01a0874a-c2c5-7346-b52d-0e07cc4f87ab", "title": "ClickHouse: Monitoring Performance of Refreshable Materialized Views", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2026/03/18/clickhouse-monitoring-performance-of-refreshable-materialized-views/", "published_at": "2026-03-17T23:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090632186a", "title": "ClickHouse: Monitoring Performance of Refreshable Materialized Views", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2026/03/18/clickhouse-monitoring-performance-of-refreshable-materialized-views/", "published_at": "2026-03-17T23:00:00+00:00" }, { "id": "01a0874a-c2c5-7346-b52d-0e07cd4da6a0", "title": "Poor Person’s Telemetry Collector with ClickHouse", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2026/02/13/poor-persons-telemetry-collector-with-clickhouse/", "published_at": "2026-02-12T23:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090679dddf", "title": "Poor Person’s Telemetry Collector with ClickHouse", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2026/02/13/poor-persons-telemetry-collector-with-clickhouse/", "published_at": "2026-02-12T23:00:00+00:00" }, { "id": "01a0874a-c2c5-7346-b52d-0e07cd646ade", "title": "ClickHouse Data Cookbook: Reading JSON from Kafka with Schema Registry", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2026/02/06/clickhouse-data-cookbook-reading-json-from-kafka-with-schema-registry/", "published_at": "2026-02-05T23:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090685cf55", "title": "ClickHouse Data Cookbook: Reading JSON from Kafka with Schema Registry", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2026/02/06/clickhouse-data-cookbook-reading-json-from-kafka-with-schema-registry/", "published_at": "2026-02-05T23:00:00+00:00" }, { "id": "01a0874a-c2c5-7346-b52d-0e07cda336dd", "title": "ClickHouse Data Cookbook: Advanced Random Data", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2025/12/15/clickhouse-data-cookbook-advanced-random-data/", "published_at": "2025-12-14T23:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b0906ca9df4", "title": "ClickHouse Data Cookbook: Advanced Random Data", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2025/12/15/clickhouse-data-cookbook-advanced-random-data/", "published_at": "2025-12-14T23:00:00+00:00" }, { "id": "01a0874a-c2c5-7346-b52d-0e07ce8347f9", "title": "Pitfalls using Buffer Tables in ClickHouse Cloud", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2025/10/07/pitfalls-using-buffer-tables-in-clickhouse-cloud/", "published_at": "2025-10-06T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b09072821f1", "title": "Pitfalls using Buffer Tables in ClickHouse Cloud", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2025/10/07/pitfalls-using-buffer-tables-in-clickhouse-cloud/", "published_at": "2025-10-06T22:00:00+00:00" }, { "id": "01a0874a-c2c5-7346-b52d-0e07cebf8ddd", "title": "ClickHouse: Filtering and Window Functions", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2025/09/24/clickhouse-filtering-and-window-functions/", "published_at": "2025-09-23T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b09073c8504", "title": "ClickHouse: Filtering and Window Functions", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2025/09/24/clickhouse-filtering-and-window-functions/", "published_at": "2025-09-23T22:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-52314e35ac88", "title": "ClickHouse: Removing Diacritics from Strings", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2025/09/19/clickhouse-removing-diacritics-from-strings/", "published_at": "2025-09-18T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b0907fdf232", "title": "ClickHouse: Removing Diacritics from Strings", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2025/09/19/clickhouse-removing-diacritics-from-strings/", "published_at": "2025-09-18T22:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-52314e3f1aae", "title": "Loading data files from Google Drive into ClickHouse", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2025/08/04/loading-data-files-from-google-drive-into-clickhouse/", "published_at": "2025-08-03T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b0908aefd6f", "title": "Loading data files from Google Drive into ClickHouse", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2025/08/04/loading-data-files-from-google-drive-into-clickhouse/", "published_at": "2025-08-03T22:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-52314e4d286b", "title": "ClickHouse Data Cookbook: Visitor Segmentation with Theta Sketches", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2025/03/09/clickhouse-data-cookbook-visitor-segmentation-with-theta-sketches/", "published_at": "2025-03-08T23:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b0909702ef9", "title": "ClickHouse Data Cookbook: Visitor Segmentation with Theta Sketches", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2025/03/09/clickhouse-data-cookbook-visitor-segmentation-with-theta-sketches/", "published_at": "2025-03-08T23:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-52314ebdf01f", "title": "ClickHouse Data Cookbook: Aggregating Latest Values", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2025/01/12/clickhouse-data-cookbook-aggregating-latest-values/", "published_at": "2025-01-11T23:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b09098cdb23", "title": "ClickHouse Data Cookbook: Aggregating Latest Values", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2025/01/12/clickhouse-data-cookbook-aggregating-latest-values/", "published_at": "2025-01-11T23:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-52314eccc203", "title": "ClickHouse Data Cookbook: Linear Algebra in SQL", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2025/01/05/clickhouse-data-cookbook-linear-algebra-in-sql/", "published_at": "2025-01-04T23:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090a342c5a", "title": "ClickHouse Data Cookbook: Linear Algebra in SQL", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2025/01/05/clickhouse-data-cookbook-linear-algebra-in-sql/", "published_at": "2025-01-04T23:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-52314f339070", "title": "New Year’s Greetings from the Data Cookbook Elf!", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2025/01/01/new-years-greetings-from-the-data-cookbook-elf/", "published_at": "2024-12-31T23:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090aea5d8b", "title": "New Year’s Greetings from the Data Cookbook Elf!", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2025/01/01/new-years-greetings-from-the-data-cookbook-elf/", "published_at": "2024-12-31T23:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-52314f82bb31", "title": "Druid 31 Preview: Changing the Segment Sort Order", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2024/10/20/druid-31-preview-changing-the-segment-sort-order/", "published_at": "2024-10-19T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090b19c1f8", "title": "Druid 31 Preview: Changing the Segment Sort Order", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2024/10/20/druid-31-preview-changing-the-segment-sort-order/", "published_at": "2024-10-19T22:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-523150496008", "title": "Table Based Lookups in Imply Polaris", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2024/10/06/table-based-lookups-in-imply-polaris/", "published_at": "2024-10-05T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090b9fe9c1", "title": "Table Based Lookups in Imply Polaris", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2024/10/06/table-based-lookups-in-imply-polaris/", "published_at": "2024-10-05T22:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-523150979424", "title": "Druid Data Cookbook: Deconstructing Nested JSON Objects", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2024/09/27/druid-data-cookbook-deconstructing-nested-json-objects/", "published_at": "2024-09-26T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090bf1984d", "title": "Druid Data Cookbook: Deconstructing Nested JSON Objects", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2024/09/27/druid-data-cookbook-deconstructing-nested-json-objects/", "published_at": "2024-09-26T22:00:00+00:00" }, { "id": "01a0874a-c2c6-7224-a5d4-523150a58f5e", "title": "Druid Data Cookbook: Flattening Arrays of Complex Objects", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2024/09/22/druid-data-cookbook-flattening-arrays-of-complex-objects/", "published_at": "2024-09-21T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090ca68eb6", "title": "Druid Data Cookbook: Flattening Arrays of Complex Objects", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2024/09/22/druid-data-cookbook-flattening-arrays-of-complex-objects/", "published_at": "2024-09-21T22:00:00+00:00" }, { "id": "01a0874a-c2ca-70e6-a3fd-bf802196e34e", "title": "Druid Data Cookbook: Parameterizing the IN clause", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2024/06/24/druid-data-cookbook-parameterizing-the-in-clause/", "published_at": "2024-06-23T22:00:00+00:00" }, { "id": "01a0d595-ba5e-710a-a9c5-7b090cf2e9fb", "title": "Druid Data Cookbook: Parameterizing the IN clause", "url": "https://blog.hellmar-becker.de/2026/09/13/clickhouse-visualizing-data-flows-and-tables//2024/06/24/druid-data-cookbook-parameterizing-the-in-clause/", "published_at": "2024-06-23T22:00:00+00:00" }, { "id": "01a0874a-c2ca-70e6-a3fd-bf8021b1b446", "title": "Druid Data Cookbook: About SQL NULL", "url": "https://blog.hellmar-becker.de/2026/07/30/dynamic-sql-in-clickhouse//2024/04/28/druid-data-cookbook-about-sql-null/", "published_at": "2024-04-27T22:00:00+00:00" } ] posts Claim your blog
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blog.hellmar-becker.de

2026

ClickHouse: Visualizing data flows and tablesoriginal ↗
12 Sept 2026
Dynamic SQL in ClickHouseoriginal ↗
29 Jul 2026
Dynamic SQL in ClickHouseoriginal ↗
29 Jul 2026
ClickHouse: Aggregating Latest Values, Take Twooriginal ↗
20 Jul 2026
ClickHouse: Aggregating Latest Values, Take Twooriginal ↗
20 Jul 2026
ClickHouse: Monitoring Performance of Refreshable Materialized Viewsoriginal ↗
17 Mar 2026
ClickHouse: Monitoring Performance of Refreshable Materialized Viewsoriginal ↗
17 Mar 2026
Poor Person’s Telemetry Collector with ClickHouseoriginal ↗
12 Feb 2026
Poor Person’s Telemetry Collector with ClickHouseoriginal ↗
12 Feb 2026
ClickHouse Data Cookbook: Reading JSON from Kafka with Schema Registryoriginal ↗
5 Feb 2026
ClickHouse Data Cookbook: Reading JSON from Kafka with Schema Registryoriginal ↗
5 Feb 2026

2025

ClickHouse Data Cookbook: Advanced Random Dataoriginal ↗
14 Dec 2025
ClickHouse Data Cookbook: Advanced Random Dataoriginal ↗
14 Dec 2025
Pitfalls using Buffer Tables in ClickHouse Cloudoriginal ↗
6 Oct 2025
Pitfalls using Buffer Tables in ClickHouse Cloudoriginal ↗
6 Oct 2025
ClickHouse: Filtering and Window Functionsoriginal ↗
23 Sept 2025
ClickHouse: Filtering and Window Functionsoriginal ↗
23 Sept 2025
ClickHouse: Removing Diacritics from Stringsoriginal ↗
18 Sept 2025
ClickHouse: Removing Diacritics from Stringsoriginal ↗
18 Sept 2025
Loading data files from Google Drive into ClickHouseoriginal ↗
3 Aug 2025
Loading data files from Google Drive into ClickHouseoriginal ↗
3 Aug 2025
ClickHouse Data Cookbook: Visitor Segmentation with Theta Sketchesoriginal ↗
8 Mar 2025
ClickHouse Data Cookbook: Visitor Segmentation with Theta Sketchesoriginal ↗
8 Mar 2025
ClickHouse Data Cookbook: Aggregating Latest Valuesoriginal ↗
11 Jan 2025
ClickHouse Data Cookbook: Aggregating Latest Valuesoriginal ↗
11 Jan 2025
ClickHouse Data Cookbook: Linear Algebra in SQLoriginal ↗
4 Jan 2025
ClickHouse Data Cookbook: Linear Algebra in SQLoriginal ↗
4 Jan 2025

2024

New Year’s Greetings from the Data Cookbook Elf!original ↗
31 Dec 2024
New Year’s Greetings from the Data Cookbook Elf!original ↗
31 Dec 2024
Druid 31 Preview: Changing the Segment Sort Orderoriginal ↗
19 Oct 2024
Druid 31 Preview: Changing the Segment Sort Orderoriginal ↗
19 Oct 2024
Table Based Lookups in Imply Polarisoriginal ↗
5 Oct 2024
Table Based Lookups in Imply Polarisoriginal ↗
5 Oct 2024
Druid Data Cookbook: Deconstructing Nested JSON Objectsoriginal ↗
26 Sept 2024
Druid Data Cookbook: Deconstructing Nested JSON Objectsoriginal ↗
26 Sept 2024
Druid Data Cookbook: Flattening Arrays of Complex Objectsoriginal ↗
21 Sept 2024
Druid Data Cookbook: Flattening Arrays of Complex Objectsoriginal ↗
21 Sept 2024
Druid Data Cookbook: Parameterizing the IN clauseoriginal ↗
23 Jun 2024
Druid Data Cookbook: Parameterizing the IN clauseoriginal ↗
23 Jun 2024
Druid Data Cookbook: About SQL NULLoriginal ↗
27 Apr 2024