Automatic CDF: Row-level changes without table configuration
Auto CDF computes row-level changes at query time using row tracking, removing write-time overhead and speeding up MERGE and UPDATE operations.
O que mudou
Automatic Change Data Feed (Auto CDF) computes row-level modifications during data reads by leveraging row tracking in Delta Lake and row lineage in Apache Iceberg v3 tables. Unlike the legacy version, it does not require manual table configuration and speeds up write operations by about 15%. ### Use cases Imagine you need to feed incremental pipelines or maintain audit trails without penalizing table write performance. - Process only changed rows in incremental ETL pipelines. - Sync modifications with external systems or caches. - Create audit trails for compliance and governance. ### How to use To read the change data feed in batch using SQL: sql SELECT * FROM table_changes('my_table', 0) What happens in this code: 1. The function reads the specified table. 2. The 0 parameter sets the starting trace version. 3. The engine computes changes at query time. To read in streaming using Python: ```python
(spark.readStream
.option("readChangeFeed", "true")
.table("my_table")
)
- delta lake
- change data feed
- unity catalog
- databricks runtime
- iceberg
Automatic change data feed is now generally available
Resumo e explicação gerados por IA a partir da release note oficial. Em caso de dúvida, a documentação oficial da plataforma prevalece.
Relacionadas
- DatabricksGA
Repositórios de pacotes em nível de workspace para Databricks Apps
Administradores de workspace podem configurar repositórios padrão de pacotes Python e npm para Databricks Apps.
databricks apps · workspace settings - DatabricksGA
Redimensione partições de stateful streaming sem perder o checkpoint no Databricks
Agora é possível alterar o número de partições de shuffle em queries Structured Streaming e pipelines Lakeflow sem descartar o estado do checkpoint.
structured streaming · lakeflow - DatabricksAtualização
Google Gemini 4 Argon disponível no Unity Gateway do Databricks
O modelo multimodal Google Gemini 4 Argon já pode ser acessado via Foundation Model APIs e Unity Gateway.
unity catalog · foundation model apis