Issues

• Plan deserialization reads nested objects in a different order than they were serialized in

  bug
  Bug

  FoundationDB/fdb-record-layer#4873 · Filter by author robert-brunel opened on Nov 10, 2026
  1

  

• Index on a fanned-out scalar array cannot return or order by the element

  enhancementplanner
  FoundationDB/fdb-record-layer#4871 · Filter by author g31pranjal opened on Nov 10, 2026

• EXISTS over a repeated field returns duplicate rows when planned with an index on the nested field

  planner
  Bug

  FoundationDB/fdb-record-layer#4869 · Filter by author hatyo opened on Nov 10, 2026
  1

  

• hnswScanLayerReturnsVectorsInClientCoordinates test failing in Nightly #469

  test failure
  FoundationDB/fdb-record-layer#4857 · Filter by author shivanshrustagi opened on Nov 5, 2026
  

• DataType.Named should be extending/implementing DateType

  cleanup
  FoundationDB/fdb-record-layer#4854 · Filter by author hazefully opened on Nov 5, 2026

• RecordLayerSchemaTemplate.toBuilder() loses the cached RecordMetaData

  FoundationDB/fdb-record-layer#4852 · Filter by author sergei-pustovykh opened on Nov 5, 2026
  1

  

• Grouped aggregate cannot use a value index unless the GROUP BY order matches the index key order exactly

  planner
  Bug

  FoundationDB/fdb-record-layer#4831 · Filter by author hatyo opened on Nov 3, 2026
  

• Enum columns can't be compared with the enum's number

  FoundationDB/fdb-record-layer#4815 · Filter by author leoluk opened on Oct 31, 2026

• IN over an enum column fails with VerifyException

  FoundationDB/fdb-record-layer#4814 · Filter by author leoluk opened on Oct 31, 2026

• WHERE (a OR b) fails with "expected boolean expression but got BOOLEAN AS _0"

  FoundationDB/fdb-record-layer#4813 · Filter by author leoluk opened on Oct 31, 2026

• Intersection and union cursors compare UUIDs and strings out of tuple order, dropping or duplicating rows

  FoundationDB/fdb-record-layer#4812 · Filter by author leoluk opened on Oct 31, 2026

• The plan for a comparison with NULL on an indexed expression depends on unrelated objects in the schema

  planner
  Bug

  FoundationDB/fdb-record-layer#4798 · Filter by author robert-brunel opened on Oct 28, 2026
  

• compress FDBRecordStore logging

  FoundationDB/fdb-record-layer#4797 · Filter by author alpaker opened on Oct 28, 2026

• retire the HNSW inlining storage format

  FoundationDB/fdb-record-layer#4796 · Filter by author normen662 opened on Oct 28, 2026
  

• Expressions over index columns and fields force a record fetch instead of a COVERING scan

  planner
  Feature

  FoundationDB/fdb-record-layer#4794 · Filter by author robert-brunel opened on Oct 27, 2026
  

• RelationalStructFacadeBuilder.getZeroBasedOffset always returns -1, so overwriting a field adds a duplicate

  bug
  FoundationDB/fdb-record-layer#4786 · Filter by author alecgrieser opened on Oct 23, 2026

• Stop writing zero_based_ordinality on explode plans and drop it from PRecordQueryExplodePlan

  FoundationDB/fdb-record-layer#4769 · Filter by author g31pranjal opened on Oct 21, 2026

• The planning cost model may choose ISCAN over a superior COVERING scan, depending on the order in which it compares the candidates

  enhancementplanner
  Task

  FoundationDB/fdb-record-layer#4751 · Filter by author robert-brunel opened on Oct 14, 2026
  

• Add support for DATETIME and INTERVAL data types

  FoundationDB/fdb-record-layer#4738 · Filter by author hazefully opened on Oct 13, 2026
  

• Merging struct types renumbers fields and drops the type name (for array literals, COALESCE)

  bug
  FoundationDB/fdb-record-layer#4734 · Filter by author robert-brunel opened on Oct 12, 2026
  2

  

• MetaDataProtoEditor record type renames can change indexes declared via the (field).index extension

  bug
  Bug

  FoundationDB/fdb-record-layer#4733 · Filter by author robert-brunel opened on Oct 9, 2026
  1

  

• MetaDataProtoEditor record type renames can leave the canonical union field unrenamed

  bug
  Bug

  FoundationDB/fdb-record-layer#4732 · Filter by author robert-brunel opened on Oct 9, 2026
  

• Aggregates over an index on an unnested record type never use a covering scan

  bugperformance
  FoundationDB/fdb-record-layer#4720 · Filter by author g31pranjal opened on Oct 7, 2026

• Change QueryCachingFlags.WITH_NO_CACHE_OPTION to Options.Name.NO_CACHE

  FoundationDB/fdb-record-layer#4697 · Filter by author sergei-pustovykh opened on Oct 1, 2026

• RankIndexMaintainer processes 0-based rank, SQL is 1-based

  enhancement
  Task

  FoundationDB/fdb-record-layer#4694 · Filter by author hatyo opened on Sep 30, 2026