ClickHouse UDFs for comparison operators, criteria tables as tuple arrays, queries with arrayAll and JSONExtractString, and a materialized view for segment membership (educational CDP-style example).
Read full article →First steps with ClickHouse OLAP-Docker Compose demo, JSON type config, ReplacingMergeTree, multi-tenant entities table, inserts, queries, and FINAL for deduplication.
Read full article →Capture row-level changes from PostgreSQL and stream them to Kafka using Debezium and Kafka Connect-Docker setup, connectors, and REPLICA IDENTITY for updates.
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