Issues

• 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
  1

  

• 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
  

• 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
  

• INNER JOIN or JOIN without any predicate causes null pointer exception

  bug
  Bug

  FoundationDB/fdb-record-layer#4722 · Filter by author shivanshrustagi opened on Oct 7, 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

• Support renaming non-parent unnested constituents in MetaDataProtoEditor instead of rejecting them

  enhancement
  Feature

  FoundationDB/fdb-record-layer#4707 · Filter by author robert-brunel opened on Oct 2, 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
  

• Drop the generated segment from proto package names in yaml-tests

  cleanuptesting improvement
  FoundationDB/fdb-record-layer#4655 · Filter by author hatyo opened on Sep 23, 2026
  

• An unconstrained plan poisons its tertiary plan-cache entry, suppressing better plans for other literals

  bugperformancerelational
  FoundationDB/fdb-record-layer#4642 · Filter by author hatyo opened on Sep 18, 2026
  

• ArithmeticValue always reports a nullable result type, even when both operands are not nullable

  bugplanner
  FoundationDB/fdb-record-layer#4622 · Filter by author g31pranjal opened on Sep 15, 2026

• Cost model scores a nested data access the same as an unnested one, so an IN-join can be chosen over a single scan

  performanceplanner
  FoundationDB/fdb-record-layer#4621 · Filter by author g31pranjal opened on Sep 15, 2026

• Rethink IndexGenerationResult to account for not repeatedly create SyntheticTables that can be reused from the SchemaTemplate

  FoundationDB/fdb-record-layer#4616 · Filter by author g31pranjal opened on Sep 14, 2026
  

• Support [NOT] IN (SELECT …) subqueries

  enhancement
  Feature

  FoundationDB/fdb-record-layer#4615 · Filter by author robert-brunel opened on Sep 11, 2026

• Derive ranks incrementally when scanning a rank index instead of one ranked-set probe per entry

  performance
  Task

  FoundationDB/fdb-record-layer#4608 · Filter by author hatyo opened on Sep 10, 2026
  

• Add more interesting kinds of validation to FDBClientKnobs

  enhancement
  Feature

  FoundationDB/fdb-record-layer#4607 · Filter by author alecgrieser opened on Sep 10, 2026

• Covering index scans cannot produce a partial record when a field is required (not nullable).

  bug
  FoundationDB/fdb-record-layer#4592 · Filter by author hatyo opened on Sep 8, 2026
  1

• The RecordConstructorValue composite accumulator may throw VerifyException when resuming a multi-aggregate group mid-way

  bug
  Bug

  FoundationDB/fdb-record-layer#4573 · Filter by author robert-brunel opened on Sep 7, 2026
  1

  

• Bump plan hash mode from VC0 to VC1

  breaking changeenhancement
  Task

  FoundationDB/fdb-record-layer#4559 · Filter by author hatyo opened on Sep 4, 2026
  

• Consider removing SimpleValueVisitor

  enhancement
  Task

  FoundationDB/fdb-record-layer#4549 · Filter by author hatyo opened on Sep 3, 2026
  

• Local version cache not updated when clearing split records

  bug
  Bug

  FoundationDB/fdb-record-layer#4520 · Filter by author alecgrieser opened on Aug 26, 2026
  1

  

• Support the DISTINCT set quantifier in aggregate function calls

  enhancement
  Feature

  FoundationDB/fdb-record-layer#4499 · Filter by author robert-brunel opened on Aug 24, 2026

• Support the in-call ORDER BY clause for ARRAY_AGG()

  enhancement
  Feature

  FoundationDB/fdb-record-layer#4498 · Filter by author robert-brunel opened on Aug 24, 2026
  1

  

• VectorIndexMaintainer should collect lock metrics

  FoundationDB/fdb-record-layer#4459 · Filter by author normen662 opened on Aug 17, 2026
  1

• rethink IndexDeferredMaintenanceControl

  FoundationDB/fdb-record-layer#4458 · Filter by author normen662 opened on Aug 17, 2026