Grafana has released Grafana Tempo 2.0 which introduces the new TraceQL query language and support for the Apache Parquet format. Grafana Tempo is an open-source tracing backend that works with object storage. The new TraceQL query language works with the Apache Parquet format to provide improved search times and queries aligned to traces.
The TraceQL query language is based on existing languages like PromQL and LogQL. It allows for selecting traces based on span and resource attributes, timing, and duration. A TraceQL query is an expression that is evaluated one trace at a time. Queries are comprised of a set of expressions chained together into a pipeline.
