Issues

• label_replace incorrectly reports duplicate label sets when normalizing histogram boundaries

  C-bug
  GreptimeTeam/greptimedb#9444 · Filter by author evenyag opened on Oct 6, 2026

• histogram_quantile returns incorrect results for numerically equivalent le labels

  C-bug
  GreptimeTeam/greptimedb#9443 · Filter by author evenyag opened on Oct 6, 2026

• Optimize single-table lookups in information_schema.partitions to avoid broad catalog enumeration

  C-enhancement
  GreptimeTeam/greptimedb#9442 · Filter by author evenyag opened on Oct 6, 2026

• TWCS groups midnight-only SSTs with the preceding day, undoing flush window boundaries

  C-bug
  GreptimeTeam/greptimedb#9441 · Filter by author evenyag opened on Oct 5, 2026

• High memory usage for long-range PromQL queries

  C-bug
  GreptimeTeam/greptimedb#9435 · Filter by author evenyag opened on Oct 2, 2026
  

• [bug] ALTER TABLE ADD COLUMN of type JSON2 drops the JSON2 extension metadata, so every later write to the table fails

  GreptimeTeam/greptimedb#9433 · Filter by author cyharyanto opened on Oct 1, 2026

• Flushing a bulk memtable can let an older row version win over a newer one

  C-bug
  GreptimeTeam/greptimedb#9428 · Filter by author fengjiachun opened on Sep 30, 2026

• [bug] Flownode flow-consistency check deadlocks on a leaked batching flow

  C-bug
  GreptimeTeam/greptimedb#9422 · Filter by author YZL0v3ZZ opened on Sep 30, 2026

• [bug] Metasrv region supervisor blocks the heartbeat response path on a bounded event queue, so a slow supervisor event withholds region lease grants from every node

  C-bug
  GreptimeTeam/greptimedb#9419 · Filter by author YZL0v3ZZ opened on Sep 30, 2026
  1

• [bug] Meta client heartbeat handshake has no deadline, so a silent metasrv stream pins the node's heartbeat and demotes its leader regions

  C-bug
  GreptimeTeam/greptimedb#9415 · Filter by author YZL0v3ZZ opened on Sep 30, 2026
  1

• [bug] Metasrv heartbeat pusher registry holds its lock across a bounded channel send, stalling mailbox instruction delivery for the whole cluster

  C-bug
  GreptimeTeam/greptimedb#9414 · Filter by author YZL0v3ZZ opened on Sep 30, 2026
  1

• PromQL: @ modifier on a subquery is ignored

  C-bug
  GreptimeTeam/greptimedb#9411 · Filter by author killme2008 opened on Sep 29, 2026

• PromQL % mixed float/native-histogram drops samples without info annotation

  GreptimeTeam/greptimedb#9407 · Filter by author discord9 opened on Sep 29, 2026
  1

• PromQL date functions read the time index instead of sample values

  C-bug
  GreptimeTeam/greptimedb#9393 · Filter by author killme2008 opened on Sep 29, 2026
  1

• HDFS writer leaves temporary files behind after write failures

  C-bug
  GreptimeTeam/greptimedb#9373 · Filter by author fengjiachun opened on Sep 28, 2026

• Stack overflow on global-worker with 366 UNION ALL branches in v1.2.1

  GreptimeTeam/greptimedb#9356 · Filter by author MichaelScofield opened on Sep 24, 2026

• Rename uadf_impl to udf_impl in aggregate functions

  good first issue
  GreptimeTeam/greptimedb#9353 · Filter by author killme2008 opened on Sep 24, 2026
  2

  

• Support JSON2 in bulk inserts by expanding JSON on the frontend

  C-enhancement
  GreptimeTeam/greptimedb#9350 · Filter by author v0y4g3r opened on Sep 24, 2026

• Kafka WAL: an append reported as failed may be persisted and replayed after its row sequences are reused

  C-bug
  GreptimeTeam/greptimedb#9335 · Filter by author fengjiachun opened on Sep 23, 2026
  1

• PromQL: comparison operators drop the metric name from the result

  good first issue
  GreptimeTeam/greptimedb#9317 · Filter by author killme2008 opened on Sep 23, 2026
  1

  

• OSS writes fail with ACK RRSA after upgrading to v1.1.0

  C-bug
  GreptimeTeam/greptimedb#9314 · Filter by author WenyXu opened on Sep 23, 2026

• Pipe operator support

  C-feature
  GreptimeTeam/greptimedb#9309 · Filter by author quentinmit opened on Sep 22, 2026

• PromQL: NULL and empty-string tag values are treated as different labels

  C-bug
  GreptimeTeam/greptimedb#9307 · Filter by author killme2008 opened on Sep 22, 2026
  2

  

• COPY-IN support for Postgres interface

  C-feature
  GreptimeTeam/greptimedb#9284 · Filter by author sunng87 opened on Sep 21, 2026
  

• Backport failure: PR #9249 to release/v1.2

  GreptimeTeam/greptimedb#9263 · Filter by author MichaelScofield opened on Sep 20, 2026