Issues

• RUM non-root page split WAL-logs the new right page as a generic delta, so crash recovery with full_page_writes = off loses it

  documentdb/documentdb#807 · Filter by author hari90 opened on Oct 21, 2026

• Query latency is 1.5x to 6x MongoDB's on common read and write patterns, on identical data and hardware

  bug
  documentdb/documentdb#806 · Filter by author KieranP opened on Oct 20, 2026

• $graphLookup fails with "Unrecognized BSON data type code 0" when the collection has a wildcard index

  bug
  documentdb/documentdb#805 · Filter by author KieranP opened on Oct 20, 2026

• $lookup with let + $expr: { $eq: ["$_id", "$$var"] } scans the foreign collection for every input document

  bug
  documentdb/documentdb#804 · Filter by author KieranP opened on Oct 20, 2026

• [Feature Request] Support wire protocol compression (OP_COMPRESSED: zstd, zlib, snappy)

  enhancement
  documentdb/documentdb#802 · Filter by author KieranP opened on Oct 20, 2026

• $expr: { $in: [field, array] } scales with array size per document, and roughly quadratically through $lookup let

  bug
  documentdb/documentdb#800 · Filter by author KieranP opened on Oct 20, 2026

• Ascending sort places an empty array after null and missing fields

  bug
  documentdb/documentdb#799 · Filter by author KieranP opened on Oct 20, 2026

• Each createIndex on an existing collection takes ~1.6 s, even when the collection is empty

  bug
  documentdb/documentdb#798 · Filter by author KieranP opened on Oct 20, 2026

• $count emits { <field>: 0 } on empty input; MongoDB emits no document

  bug
  documentdb/documentdb#797 · Filter by author KieranP opened on Oct 20, 2026

• [Feature Request] Support compound wildcard indexes (MongoDB 7.0)

  enhancement
  documentdb/documentdb#796 · Filter by author KieranP opened on Oct 20, 2026

• documentdb-local: postmaster watchdog reports PostgreSQL down under QEMU arm64 emulation

  documentdb/documentdb#794 · Filter by author guanzhousongmicrosoft opened on Oct 19, 2026

• Scheduled packaging E2E is failing

  packaging-e2e
  documentdb/documentdb#792 · Filter by author github-actions opened on Oct 18, 2026

• Gateway metrics: make the OTLP aggregation temporality configurable (Delta is hard-coded)

  documentdb/documentdb#788 · Filter by author peterekhator opened on Oct 15, 2026

• documentdb-gateway-admin: keep secret-bearing temp files in a private runtime directory

  documentdb/documentdb#785 · Filter by author guanzhousongmicrosoft opened on Oct 13, 2026

• $$NOW in query filters fails once the collection has a secondary index

  bugindexing
  documentdb/documentdb#784 · Filter by author FICTURE7 opened on Oct 13, 2026
  1

• [documentdb-local] Credential and container-doc follow-ups

  documentdb-localenhancement
  documentdb/documentdb#774 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026

• [documentdb-local] Lifecycle, upgrade and settings gaps in the container image

  1.0-blockerbugdocumentdb-1.0documentdb-local
  documentdb/documentdb#773 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026 · 1.0
  1

• [packaging] Setup and installer report states that aren't true; extras build version not normalized

  1.0-blockerbugdocumentdb-1.0packaging
  documentdb/documentdb#772 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026 · 1.0
  1

• [packaging] Lifecycle paths that leave the stack down or stuck (remove, purge, upgrade, reruns)

  1.0-blockerbugdocumentdb-1.0packaging
  documentdb/documentdb#771 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026 · 1.0
  1

• [gateway] Small validation and error-code divergences from MongoDB

  bugenginegateway
  documentdb/documentdb#770 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026

• [engine] $lookup type-0 error, uncancellable string expressions, reindex retry and old-catalog failures

  bugdocumentdb-1.0engineindexingquery
  documentdb/documentdb#769 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026

• [gateway] Restart, shutdown and outage handling gaps

  bugdocumentdb-1.0gateway
  documentdb/documentdb#768 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026

• [engine][gateway] Non-idempotent writes are applied twice when the reply is lost after commit

  bugdocumentdb-1.0enginegatewaywrite-operations
  documentdb/documentdb#767 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026

• [gateway] SCRAM login fails for user names containing ',' or '=': the =2C/=3D escapes are not decoded

  buggateway
  documentdb/documentdb#766 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026

• createUser/updateUser store passwords that fail SASLprep, leaving a credential no client can use

  bugperformancewrite-operations
  documentdb/documentdb#765 · Filter by author guanzhousongmicrosoft opened on Oct 5, 2026
  1