Issues

• [Bug]: Parallel chunkwise aggregation pushes a correlated SubPlan below Gather → ERROR: subplan "SubPlan 1" was not initialized

  timescale/timescaledb#10804 · Filter by author hyeokhee opened on Oct 9, 2026

• Costing ignores whether VectorAgg can be applied to a sorted GroupAggregate on compressed chunks

  bugColumnstorecost-estimatesplannerv2.31.0
  Bug

  timescale/timescaledb#10803 · Filter by author antekresic opened on Oct 9, 2026

• [Enhancement]: Support pushing down SkipScan into subqueries if applicable

  enhancementperformanceskip-scan
  timescale/timescaledb#10801 · Filter by author natalya-aksman opened on Oct 9, 2026

• SkipScan on compressed chunks decompresses whole batches to read one row

  bugv2.31.0
  timescale/timescaledb#10799 · Filter by author antekresic opened on Oct 9, 2026

• Unneeded NOT NULL filter on partitioning column

  bugplanner
  timescale/timescaledb#10787 · Filter by author akuzm opened on Oct 7, 2026
  

• [Bug]: GROUP BY on a segmentby column picks HashAggregate over a faster sorted GroupAggregate

  bugColumnstoreperformanceplannerv2.31.0
  timescale/timescaledb#10786 · Filter by author antekresic opened on Oct 7, 2026
  2

• [Bug]: Metadata-only aggregates on compressed hypertables pick much slower plans

  bugColumnstoreperformanceplannerv2.31.0
  Bug

  timescale/timescaledb#10782 · Filter by author antekresic opened on Oct 7, 2026
  2

• [Bug]: Compression fails on FIPS-mode hosts: metadata column names are hashed with pg_md5_hash

  bugv2.30.2
  timescale/timescaledb#10777 · Filter by author xangelix opened on Oct 6, 2026
  1

• Assert failure in compute_circumscribed_bucketed_refresh_window for an invalidation below the smallest bucketable value

  bugContinuous Aggregatellm-fuzzer
  timescale/timescaledb#10775 · Filter by author pnthao opened on Oct 6, 2026

• [Bug]: counter_agg fails with "out of order points" in a parallel plan with chunk-wise aggregation

  bugv2.29.1
  timescale/timescaledb#10768 · Filter by author crnhrv opened on Oct 5, 2026

• [Bug]: INSERT ... ON CONFLICT into a compressed chunk inserts a duplicate key after a column was dropped (composite bloom sparse index)

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10756 · Filter by author cevian opened on Oct 5, 2026

• [Bug]: RENAME COLUMN does not rename a default composite bloom filter's metadata column, so the sparse index is not used until the chunk is recompressed

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10755 · Filter by author cevian opened on Oct 5, 2026

• [Bug]: time_bucket_gapfill emits duplicate rows when a GROUP BY column has a nondeterministic collation

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10754 · Filter by author cevian opened on Oct 5, 2026

• [Bug]: Bloom sparse index returns no rows when a text column is compared to a constant cast to name

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10753 · Filter by author cevian opened on Oct 5, 2026

• [Bug]: ChunkAppend fails with "extParam set of initplan is empty" when an EXISTS subquery with its own initplan is OR-ed with a column condition

  bugllm-fuzzerv2.31.0
  timescale/timescaledb#10752 · Filter by author cevian opened on Oct 5, 2026

• [Bug]: "could not find pathkey item to sort" planning a correlated subquery over a compressed chunk ordered by a window function over an outer column

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10751 · Filter by author cevian opened on Oct 5, 2026

• [Bug]: Continuous aggregate refresh skips the last invalidated bucket when the invalidated range ends exactly on a variable-width bucket boundary

  bugContinuous Aggregatev2.30.2
  timescale/timescaledb#10745 · Filter by author salmanazmat666 opened on Oct 2, 2026
  1

• [Bug]: Assertion failure in ExecCopySlot (Materialize over sorted ColumnarScans) on a self-join of a compressed hypertable ordered by an expression

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10741 · Filter by author cevian opened on Oct 2, 2026

• [Bug]: In-memory recompression blocks reads of the chunk

  timescale/timescaledb#10739 · Filter by author Ranexia04 opened on Oct 1, 2026

• [Bug]: Default index not created if partial index exists

  bugv2.19.3
  timescale/timescaledb#10736 · Filter by author jflambert opened on Oct 1, 2026

• [Bug]: Multi-row INSERT into a compressed chunk raises a false duplicate-key error, or silently drops rows with ON CONFLICT DO NOTHING, after a row with NULL in a segmentby key column

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10721 · Filter by author cevian opened on Sep 30, 2026

• [Bug]: Query cancel during TSL load sticks the backend on the Apache continuous-aggregate stub (0A000) even when timescaledb.license is timescale

  bugv2.30.1
  timescale/timescaledb#10711 · Filter by author nikolaigut opened on Sep 29, 2026
  1

• [Bug]: Compression changes interval values: equal intervals with different month/day/time parts are merged by dictionary compression

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10709 · Filter by author cevian opened on Sep 29, 2026

• [Bug]: INSERT ... ON CONFLICT DO UPDATE with a repeated key succeeds on a compressed chunk instead of raising SQLSTATE 21000

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10689 · Filter by author cevian opened on Sep 28, 2026

• [Bug]: compress_chunk fails with "row is too big" when orderby text columns hold wide values

  bugllm-fuzzerneeds-triagev2.31.0
  timescale/timescaledb#10688 · Filter by author cevian opened on Sep 28, 2026
  2