CHANGELOG.md

documentdb v0.110-0 (Unreleased)

• Add support for keyword description in $jsonSchema [Feature]
• Integrate cargo tools to identify dependencies for pg_documentdb_gw [Feature] (#263)
• Add support for killSessions command [Feature] (#402)
• Support arbitrary database user and password [Feature] (#306)
• Fix crash in bson_dollar_lookup_project when matched documents array contains NULL elements from LEFT JOIN [Bugfix] (#465)
• Fix crash in $densify with partitionByFields on shard key due to mismatched sort operators for INT8 partition expression [Bugfix] (#464)
• Fix crash in shard_collection when implicit collection creation fails and returns NULL [Bugfix] (#462)
• Fix crash in $let when in expression is a constant [Bugfix] (#463)
• Support for TTL cron job to repeat deletes in batches until the one minute budget is exhausted, instead of deleting one batch per index per minute.[Perf]
• Crash fix when zero rows reach $first/$last/$firstN/$lastN accumulators in $group stage with no $sort [Bugfix]. (#466)

documentdb v0.109-0 (Unreleased)

• Support collation with find positional queries [Feature]
• Short-circuit in $cond runtime evaluation [Perf]
• Support operator variables(eg: $map.as alias) in let variable spec [Bugfix]
• Support for killOp administrative command [Feature]
• Fix $addToSet behavior and skip the top-level field rewrite because it's already done in the operator [Bugfix]
• Performance improvements for $addToSet update operator up to ~70x for large existing and update arrays. [Perf]
• Removed feature flags documentdb.enableCompact, documentdb.enableBucketAutoStage and documentdb.enableIndexHintSupport
• Fix use-after-free segmentation fault in $let [Bugfix]
• Optimize $makeArray on constant expressions.[Perf]
• Short-circuit in $switch at parse time [Perf]
• Enable ordered indexes by default. Can be turned off by specifying "storageEngine": {"enableOrderedIndex": false} for a single index or by turning off the documentdb.defaultUseCompositeOpClass GUC.
• Fix NULL document crash from $in: [] optimization on sharded collections.

documentdb v0.108-0 (January 08, 2026)

• Top-level let variables and $$NOW supported by default.
• Fix collation support on find and aggregation when variableSpec is not available [Bugfix].
• Support dropRole command [Feature]
• Support rolesInfo command [Feature]
• Fix concurrent upsert behavior, update the documents in case of conflicts during insert [Bugfix] (#295).
• Support collation with $sortArray aggregation operator [Feature]
• Add support for keyword required in $jsonSchema
• Fix a segmentation fault when using ordered aggregate such as $last with $setWindowFields aggregation stage. [Bugfix]
• Fix crash when building lookup pipeline queries from nested pipelines and $group aggregates [Bugfix]
• Add basic support for compiling with pg18 [Feature]
• Drop unused environment variable ENFORCE_SSL in dockerfile [Bugfix] (#313)
• Remove the explicit dependency on the RUM extension (it's now implicit on the .so file). Flip to documentdb_extended_rum for PG18+ [Feature]
• Use the appropriate GUC for the user_crud_commands.sql [Bugfix] (#319)
• Provide Rust dev environment in devcontainer [Feature]
• Add extension that adds a gateway host that's run as a postgres background worker [Feature]

documentdb v0.107-0 (October 22, 2025)

• Support sort by _id against the _id index using the enableIndexOrderbyPushdown flag [Feature].
• Improvements to explain for various scan types [Feature].
• Support schema enforcement with CSFLE integration [Preview]
• Validate $jsonSchema syntax during rule creation or modification(schema validation) [Preview]

documentdb v0.106-0 (August 29, 2025)

• Add internal extension that provides extensions to the rum index. [Feature]
• Enable let support for update queries [Feature]. Requires EnableVariablesSupportForWriteCommands to be on.
• Enable let support for findAndModify queries [Feature]. Requires EnableVariablesSupportForWriteCommands to be on.
• Add internal extension that provides extensions to the rum index. [Feature]
• Optimized query for usersInfo command.
• Support collation with delete [Feature]. Requires EnableCollation to be on.
• Support for index hints for find/aggregate/count/distinct [Feature]
• Support createRole command [Feature]
• Add schema changes for Role CRUD APIs [Feature]
• Add support for using EntraId tokens via Plain Auth

documentdb v0.105-0 (July 28, 2025)

• Support $bucketAuto aggregation stage, with granularity types: POWERSOF2, 1-2-5, R5, R10, R20, R40, R80, E6, E12, E24, E48, E96, E192 [Feature]
• Support conectionStatus command [Feature].

documentdb v0.104-0 (June 09, 2025)

• Add string case support for $toDate operator
• Support sort with collation in runtime*[Feature]*
• Support collation with $indexOfArray aggregation operator. [Feature]
• Support collation with arrays and objects comparisons [Feature]
• Support background index builds [Bugfix] (#36)
• Enable user CRUD by default [Feature]
• Enable let support for delete queries [Feature]. Requires EnableVariablesSupportForWriteCommands to be on.
• Enable rum_enable_index_scan as default on [Perf]
• Add public documentdb-local Docker image with gateway to GHCR
• Support compact command [Feature]. Requires documentdb.enablecompact GUC to be on.
• Enable role privileges for usersInfo command [Feature]

documentdb v0.103-0 (May 09, 2025)

• Support collation with aggregation and find on sharded collections [Feature]
• Support $convert on binData to binData, string to binData and binData to string (except with format: auto) [Feature]
• Fix list_databases for databases with size > 2 GB [Bugfix] (#119)
• Support half-precision vector indexing, vectors can have up to 4,000 dimensions [Feature]
• Support ARM64 architecture when building docker container [Preview]
• Support collation with $documents and $replaceWith stage of the aggregation pipeline [Feature]
• Push pg_documentdb_gw for documentdb connections [Feature]

documentdb v0.102-0 (March 26, 2025)

• Support index pushdown for vector search queries [Bugfix]
• Support exact search for vector search queries [Feature]
• Inline $match with let in $lookup pipelines as JOIN Filter [Perf]
• Support TTL indexes [Bugfix] (#34)
• Support joining between postgres and documentdb tables [Feature] (#61)
• Support current_op command [Feature] (#59)
• Support for list_databases command [Feature] (#45)
• Disable analyze statistics for unique index uuid columns which improves resource usage [Perf]
• Support collation with $expr, $in, $cmp, $eq, $ne, $lt, $lte, $gt, $gte comparison operators (Opt-in) [Feature]
• Support collation in find, aggregation $project, $redact, $set, $addFields, $replaceRoot stages (Opt-in) [Feature]
• Support collation with $setEquals, $setUnion, $setIntersection, $setDifference, $setIsSubset in the aggregation pipeline (Opt-in) [Feature]
• Support unique index truncation by default with new operator class [Feature]
• Top level aggregate command let variables support for $geoNear stage [Feature]
• Enable Backend Command support for Statement Timeout [Feature]
• Support type aggregation operator $toUUID. [Feature]
• Support Partial filter pushdown for $in predicates [Perf]
• Support the $dateFromString operator with full functionality [Feature]
• Support extended syntax for $getField aggregation operator. Now the value of 'field' could be an expression that resolves to a string. [Feature]

documentdb v0.101-0 (February 12, 2025)

• Push $graphlookup recursive CTE JOIN filters to index [Perf]
• Build pg_documentdb for PostgreSQL 17 [Infra] (#13)
• Enable support of currentOp aggregation stage, along with collstats, dbstats, and indexStats [Commands] (#52)
• Allow inlining $unwind with $lookup with preserveNullAndEmptyArrays [Perf]
• Skip loading documents if group expression is constant [Perf]
• Fix Merge stage not outputing to target collection [Bugfix] (#20)

documentdb v0.100-0 (January 23rd, 2025)

Initial Release