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Attaches structured metadata to tables at creation time so machine consumers can identify signal type, source, and instrument kind.
Distinct from Table Creation: Distinct from Table Creation: focuses on annotating tables with observability-specific metadata rather than the general act of creating a table.
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GreptimeDB is a distributed, open-source time-series database built for unified observability. It stores and queries metrics, logs, and traces together in a single columnar engine, supporting both SQL and PromQL for analysis. The database is designed as a Kubernetes-native operator with a decoupled compute and storage architecture, enabling horizontal scaling and multi-region deployment. What distinguishes GreptimeDB is its role as a multi-protocol ingestion gateway, accepting data through OpenTelemetry, Prometheus Remote Write, InfluxDB, Loki, Elasticsearch, Kafka, and MQTT protocols without
Ships a DDL syntax for declaring observability concepts and lineage directly in CREATE TABLE statements.