Apache Druid 24 introduced SQL-based ingestion functionality. Rollup in Apache Druid during ingestion is a common technique used to reduce data size in order to improve query performance while still retaining enough detail to meet the end user’s ad hoc query needs. This article walks through the details of the SQL statements used to execute rollup ingestion.
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Rollup Ingestion in Druid using SQL
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Apache Druid 24 introduced SQL-based ingestion functionality. Rollup in Apache Druid during ingestion is a common technique used to reduce data size in order to improve query performance while still retaining enough detail to meet the end user’s ad hoc query needs. This article walks through the details of the SQL statements used to execute rollup ingestion.