Notes on data platforms, streaming systems, and the engineering trade-offs behind them.https://blog.rubensminoru.com/https://blog.rubensminoru.com/en/artificial-intelligence/ontological-hypothesis-generation/https://blog.rubensminoru.com/en/artificial-intelligence/ontological-hypothesis-generation/How ontology and formal semantics let an AI go beyond inferring facts and formulate inspectable hypotheses about the types, relations, and rules of the theory itself.Tue, 25 Aug 2026 00:00:00 GMThttps://blog.rubensminoru.com/pt-BR/artificial-intelligence/ontological-hypothesis-generation/https://blog.rubensminoru.com/pt-BR/artificial-intelligence/ontological-hypothesis-generation/Como ontologia e semântica formal permitem que uma IA vá além de inferir fatos e formule hipóteses inspecionáveis sobre os tipos, relações e regras da própria teoria.Tue, 25 Aug 2026 00:00:00 GMThttps://blog.rubensminoru.com/en/data-platform/incremental-processing/https://blog.rubensminoru.com/en/data-platform/incremental-processing/How monotonicity, coordination, and the information preserved by a pipeline explain the boundaries between full loads and incremental processing.Mon, 17 Aug 2026 00:00:00 GMThttps://blog.rubensminoru.com/pt-BR/data-platform/incremental-processing/https://blog.rubensminoru.com/pt-BR/data-platform/incremental-processing/Como monotonicidade, coordenação e as informações preservadas pelo pipeline explicam os limites entre full load e processamento incremental.Fri, 14 Aug 2026 00:00:00 GMThttps://blog.rubensminoru.com/en/real-time-analytics/doris-all-in-one-serving/https://blog.rubensminoru.com/en/real-time-analytics/doris-all-in-one-serving/Apache Doris consolidates responsibilities that a Trino architecture distributes across several components. This comparison examines the operational gains, the trade-offs, and what a load test revealed.Tue, 28 Jul 2026 00:00:00 GMThttps://blog.rubensminoru.com/pt-BR/real-time-analytics/doris-all-in-one-serving/https://blog.rubensminoru.com/pt-BR/real-time-analytics/doris-all-in-one-serving/Apache Doris reúne responsabilidades que uma arquitetura com Trino distribui entre vários componentes. A comparação mostra o ganho operacional, os trade-offs e o que um teste de carga revelou.Tue, 28 Jul 2026 00:00:00 GMThttps://blog.rubensminoru.com/en/real-time-analytics/paimon-streaming-lakehouse/https://blog.rubensminoru.com/en/real-time-analytics/paimon-streaming-lakehouse/Among Iceberg, Delta Lake, Hudi, and Paimon, which Lakehouse format has the mental model most aligned with CDC and continuous streaming — and why that still doesn't solve real-time serving.Fri, 17 Jul 2026 00:00:00 GMThttps://blog.rubensminoru.com/pt-BR/real-time-analytics/paimon-streaming-lakehouse/https://blog.rubensminoru.com/pt-BR/real-time-analytics/paimon-streaming-lakehouse/Entre Iceberg, Delta Lake, Hudi e Paimon, qual formato de Lakehouse tem o modelo mental mais alinhado a CDC e streaming contínuo — e por que isso ainda não resolve o serving em tempo real.Fri, 17 Jul 2026 00:00:00 GMThttps://blog.rubensminoru.com/en/real-time-analytics/lakehouse-is-not-real-time/https://blog.rubensminoru.com/en/real-time-analytics/lakehouse-is-not-real-time/Why support for updates and streaming ingestion does not turn Apache Iceberg into a real-time analytics layer.Fri, 10 Jul 2026 00:00:00 GMThttps://blog.rubensminoru.com/pt-BR/real-time-analytics/lakehouse-is-not-real-time/https://blog.rubensminoru.com/pt-BR/real-time-analytics/lakehouse-is-not-real-time/Por que suporte a updates e streaming ingestion não transforma Apache Iceberg em uma camada de analytics em tempo real.Fri, 10 Jul 2026 00:00:00 GMThttps://blog.rubensminoru.com/en/sql/query-execution-model/https://blog.rubensminoru.com/en/sql/query-execution-model/How a SQL query becomes an AST, a logical plan, an optimized plan, and execution.Fri, 10 Jul 2026 00:00:00 GMThttps://blog.rubensminoru.com/pt-BR/sql/query-execution-model/https://blog.rubensminoru.com/pt-BR/sql/query-execution-model/Como uma query SQL se transforma em AST, plano lógico, plano otimizado e execução.Fri, 10 Jul 2026 00:00:00 GMThttps://blog.rubensminoru.com/en/data-platform/ingestion/https://blog.rubensminoru.com/en/data-platform/ingestion/An autonomous, near real-time ingestion layer built on Kafka, Avro, and object storage.Thu, 30 Jul 2020 00:00:00 GMThttps://blog.rubensminoru.com/pt-BR/data-platform/ingestion/https://blog.rubensminoru.com/pt-BR/data-platform/ingestion/Uma camada de ingestão autônoma e próxima do tempo real baseada em Kafka, Avro e armazenamento de objetos.Thu, 30 Jul 2020 00:00:00 GMThttps://blog.rubensminoru.com/en/data-platform/consumption/https://blog.rubensminoru.com/en/data-platform/consumption/A decoupled architecture for analytical data storage, cataloging, and processing.Wed, 29 Jul 2020 00:00:00 GMThttps://blog.rubensminoru.com/pt-BR/data-platform/consumption/https://blog.rubensminoru.com/pt-BR/data-platform/consumption/Uma arquitetura desacoplada para armazenamento, catálogo e processamento analítico de dados.Wed, 29 Jul 2020 00:00:00 GMThttps://blog.rubensminoru.com/en/data-platform/challenges/https://blog.rubensminoru.com/en/data-platform/challenges/The scalability and autonomy challenges involved in building data platforms.Tue, 28 Jul 2020 00:00:00 GMThttps://blog.rubensminoru.com/pt-BR/data-platform/challenges/https://blog.rubensminoru.com/pt-BR/data-platform/challenges/Os desafios de escalabilidade e autonomia encontrados na construção de plataformas de dados.Tue, 28 Jul 2020 00:00:00 GMT