Summary

Development period: 2026-05-04 - 2026-05-17

Here are the highlights from recent commits:

• Queries with constant expressions run faster due to pre-casting optimizations
• DataFusion engine upgraded to version 53 with latest query execution improvements
• Storage engine removes PartitionTreeMemtable component in favor of simplified architecture
• Documentation refreshed with a large batch of stale-content fixes

Our website and docs now ship an Agent Quickstart prompt — one click and your AI agent knows how to install and use GreptimeDB. Give it a try!

We encourage users on older versions to upgrade for these fixes and improvements.

Contributors

Over the past two weeks, 15 contributors merged a total of 46 PRs. Among them, 4 community contributors contributed 5 PRs. Welcome to our new contributors: @kimjune01, @Detachm!

Thanks to our community contributors:

• @QuakeWang db#8094 db#8060
• @BootstrapperSBL db#8018
• @Detachm db#8067

Highlights of Recent PRs

db#8098, db#8106 chore: update dashboards

The pre-defined Grafana dashboards add two new sections. The Hotspot section provides region distribution and datanode load analysis panels, letting operators diagnose data skew and write hotspots directly without custom queries. The Autopilot section displays metrics for region balancer operations, auto-repartitioning actions, and P99 latency. Datanode labels in region statistics are also simplified from the full address format to datanode-<peer_id>.

db#8080 refactor(mito2)!: remove PartitionTreeMemtable

The mito2 storage engine removes the PartitionTreeMemtable implementation as part of internal memory table refactoring. This change simplifies the memtable architecture without affecting query behavior or data compatibility.

db#7926 feat: pre-cast constants

Query execution is faster for filters with constants that don't match column types, as GreptimeDB now pre-casts the constants at planning time instead of casting entire columns during execution. This change also enables filter pushdown in cases that were previously blocked by type mismatches.

db#8107 feat: bump datafusion to 53

GreptimeDB upgrades to DataFusion 53.1, Arrow 58.3, and Parquet 58.3, bringing the latest query engine improvements and file format optimizations to the database core.

Good First Issue

Issue#7755 Feature request: Support EKS Pod Identity / ECS container credentials endpoint for S3 object storage

Update GreptimeDB's OpenDAL dependency to support AWS container credentials endpoint for EKS Pod Identity and ECS task roles authentication.

• Keywords: Storage, Dependencies
• Difficulty: Easy

Issue#7987 feat: add flow_statistics system table and SHOW FLOW STATUS for flow runtime observability

Add a flow_statistics system table and SHOW FLOW STATUS SQL command to display flow runtime data like start time, uptime, errors, and data processing statistics.

• Keywords: SQL, Observability
• Difficulty: Medium