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supported-commands.md
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supported-commands.md
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---
sidebar_position: 1
description: This is a list of all supported commands in FerretDB
---
# Supported commands
<!--
Use ⚠️ for commands and arguments that are implemented with major limitations,
or (safely) ignored.
Use ❌ for commands and arguments that are not implemented at all.
-->
## Query commands
| Command | Argument | Status | Comments |
| --------------- | -------------------------- | ------ | --------------------------------------------------------- |
| `delete` | | ✅ | Basic command is fully supported |
| | `deletes` | ✅ | |
| | `comment` | ⚠️ | |
| | `let` | ⚠️ | Unimplemented |
| | `ordered` | ✅ | |
| | `writeConcern` | ⚠️ | Ignored |
| | `q` | ✅ | |
| | `limit` | ✅ | |
| | `collation` | ❌ | Unimplemented |
| | `hint` | ⚠️ | Ignored |
| `find` | | ✅ | Basic command is fully supported |
| | `filter` | ✅ | |
| | `sort` | ✅ | |
| | `projection` | ✅ | Basic projections with fields are supported |
| | `hint` | ⚠️ | Ignored |
| | `skip` | ⚠️ | |
| | `limit` | ✅ | |
| | `batchSize` | ✅ | |
| | `singleBatch` | ✅ | |
| | `comment` | ⚠️ | |
| | `maxTimeMS` | ✅ | |
| | `readConcern` | ⚠️ | Ignored |
| | `max` | ⚠️ | Ignored |
| | `min` | ⚠️ | Ignored |
| | `returnKey` | ❌ | Unimplemented |
| | `showRecordId` | ✅ | |
| | `tailable` | ✅ | |
| | `oplogReplay` | ⚠️ | Ignored |
| | `noCursorTimeout` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/4035) |
| | `awaitData` | ✅ | |
| | `allowPartialResults` | ❌ | Unimplemented |
| | `collation` | ❌ | Unimplemented |
| | `allowDiskUse` | ⚠️ | Ignored |
| | `let` | ❌ | Unimplemented |
| `findAndModify` | | ✅ | Basic command is fully supported |
| | `query` | ✅ | |
| | `sort` | ✅ | |
| | `remove` | ✅ | |
| | `update` | ✅ | |
| | `new` | ✅ | |
| | `upsert` | ✅ | |
| | `bypassDocumentValidation` | ⚠️ | Ignored |
| | `writeConcern` | ⚠️ | Ignored |
| | `maxTimeMS` | ✅ | |
| | `collation` | ❌ | Unimplemented |
| | `arrayFilters` | ❌ | Unimplemented |
| | `hint` | ⚠️ | Ignored |
| | `comment` | ⚠️ | |
| | `let` | ⚠️ | Unimplemented |
| `getMore` | | ✅ | Basic command is fully supported |
| | `batchSize` | ✅ | |
| | `maxTimeMS` | ✅ | |
| | `comment` | ⚠️ | Unimplemented |
| `insert` | | ✅ | Basic command is fully supported |
| | `documents` | ✅ | |
| | `ordered` | ✅ | |
| | `bypassDocumentValidation` | ⚠️ | Ignored |
| | `comment` | ⚠️ | Ignored |
| `update` | | ✅ | Basic command is fully supported |
| | `updates` | ✅ | |
| | `ordered` | ⚠️ | Ignored |
| | `writeConcern` | ⚠️ | Ignored |
| | `bypassDocumentValidation` | ⚠️ | Ignored |
| | `comment` | ⚠️ | |
| | `let` | ⚠️ | Unimplemented |
| | `q` | ✅ | |
| | `u` | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/2742) |
| | `c` | ⚠️ | Unimplemented |
| | `upsert` | ✅ | |
| | `multi` | ✅ | |
| | `collation` | ❌ | Unimplemented |
| | `arrayFilters` | ⚠️ | Unimplemented |
| | `hint` | ⚠️ | Ignored |
### Update Operators
The following operators and modifiers are available in the `update` and `findAndModify` commands.
| Operator | Modifier | Status | Comments |
| ----------------- | ----------- | ------ | -------------------------------------------------------- |
| `$currentDate` | | ✅ | |
| `$inc` | | ✅ | |
| `$min` | | ✅ | |
| `$max` | | ✅ | |
| `$mul` | | ✅ | |
| `$rename` | | ✅ | |
| `$set` | | ✅ | |
| `$setOnInsert` | | ✅ | |
| `$unset` | | ✅ | |
| `$` | | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/822) |
| `$[]` | | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/823) |
| `$[<identifier>]` | | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/824) |
| `$addToSet` | | ✅️ | |
| `$pop` | | ✅ | |
| `$pull` | | ✅ | |
| `$push` | | ✅️ | |
| `$pullAll` | | ✅️ | |
| | `$each` | ✅️ | |
| | `$position` | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/829) |
| | `$slice` | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/830) |
| | `$sort` | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/831) |
| | `$bit` | ✅️ | |
### Projection Operators
The following operators are available in the `find` command `projection` argument.
| Operator | Status | Comments |
| ------------ | ------ | --------------------------------------------------------- |
| `$` | ✅️ | |
| `$elemMatch` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1710) |
| `$meta` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1712) |
| `$slice` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1711) |
## Query Plan Cache Commands
| Command | Argument | Status | Comments |
| ----------------------- | ------------ | ------ | --------------------------------------------------------- |
| `planCacheClear` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1502) |
| | `query` | ⚠️ | |
| | `projection` | ⚠️ | |
| | `sort` | ⚠️ | |
| | `comment` | ⚠️ | |
| `planCacheClearFilters` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1503) |
| | `query` | ⚠️ | |
| | `sort` | ⚠️ | |
| | `projection` | ⚠️ | |
| | `collation` | ❌ | Unimplemented |
| | `comment` | ⚠️ | |
| `planCacheListFilters` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1504) |
| | `comment` | ⚠️ | |
| `planCacheSetFilter` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1505) |
| | `query` | ⚠️ | |
| | `sort` | ⚠️ | |
| | `projection` | ⚠️ | |
| | `collation` | ❌ | Unimplemented |
| | `indexes` | ⚠️ | |
| | `comment` | ⚠️ | |
## Free Monitoring Commands
| Command | Argument | Status | Comments |
| ------------------------- | ------------------- | ------ | ---------------------------------------------------------- |
| `setFreeMonitoring` | | ✅ | [Telemetry reporting](../telemetry.md) |
| | `action: "enable"` | ✅ | [`--telemetry=enable`](../telemetry.md#enable-telemetry) |
| | `action: "disable"` | ✅ | [`--telemetry=disable`](../telemetry.md#disable-telemetry) |
| `getFreeMonitoringStatus` | | ✅ | |
## Database Operations
### User Management Commands
| Command | Argument | Status | Comments |
| -------------------------- | -------------------------------- | ------ | --------------------------------------------------------- |
| `createUser` | | ✅ | |
| | `pwd` | ⚠️ | |
| | `customData` | ⚠️ | |
| | `roles` | ⚠️ | |
| | `digestPassword` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `authenticationRestrictions` | ⚠️ | |
| | `mechanisms` | ⚠️ | |
| | `digestPassword` | ⚠️ | |
| | `comment` | ⚠️ | |
| `dropAllUsersFromDatabase` | | ✅ | |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `dropUser` | | ✅ | |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `grantRolesToUser` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1494) |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `revokeRolesFromUser` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1495) |
| | `roles` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `updateUser` | | ✅ | |
| | `pwd` | | |
| | `customData` | | |
| | `roles` | | |
| | `digestPassword` | | |
| | `writeConcern` | | |
| | `authenticationRestrictions` | | |
| | `mechanisms` | | |
| | `digestPassword` | | |
| | `comment` | | |
| `usersInfo` | | ✅ | |
| | `showCredentials` | ✅ | |
| | `showCustomData` | ⚠️ | |
| | `showPrivileges` | ⚠️ | |
| | `showAuthenticationRestrictions` | ⚠️ | |
| | `filter` | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/4141) |
| | `comment` | ⚠️ | |
### Authentication Commands
| Command | Argument | Status | Comments |
| -------------- | -------- | ------ | --------------------------------------------------------- |
| `authenticate` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1731) |
| `getnonce` | | ❌ | Deprecated |
| `logout` | | ✅ | |
| `saslStart` | | ✅ | |
### Role Management Commands
| Command | Argument | Status | Comments |
| -------------------------- | ---------------------------- | ------ | --------------------------------------------------------- |
| `createRole` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1528) |
| | `privileges` | ⚠️ | |
| | `roles` | ⚠️ | |
| | `authenticationRestrictions` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `dropRole` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1529) |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `dropAllRolesFromDatabase` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1530) |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `grantPrivilegesToRole` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1531) |
| | `privileges` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `grantRolesToRole` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1532) |
| | `roles` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `invalidateUserCache` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1533) |
| `revokePrivilegesFromRole` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1534) |
| | `privileges` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `revokeRolesFromRole` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1535) |
| | `roles` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
| `rolesInfo` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1536) |
| | `showPrivileges` | ⚠️ | |
| | `showBuiltinRoles` | ⚠️ | |
| | `comment` | ⚠️ | |
| `updateRole` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1537) |
| | `privileges` | ⚠️ | |
| | `roles` | ⚠️ | |
| | `authenticationRestrictions` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `comment` | ⚠️ | |
### Replication Commands
| Command | Argument | Status | Comments |
| ----------------- | -------- | ------ | --------------------------------------------------------- |
| `replSetInitiate` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/3936) |
## Session Commands
Related [issue](https://github.com/FerretDB/FerretDB/issues/8).
Related [issue](https://github.com/FerretDB/FerretDB/issues/153).
| Command | Argument | Status | Comments |
| -------------------------- | -------------- | ------ | --------------------------------------------------------- |
| `abortTransaction` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1547) |
| | `txnNumber` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `autocommit` | ⚠️ | |
| | `comment` | ⚠️ | |
| `commitTransaction` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1548) |
| | `txnNumber` | ⚠️ | |
| | `writeConcern` | ⚠️ | |
| | `autocommit` | ⚠️ | |
| | `comment` | ⚠️ | |
| `endSessions` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1549) |
| `killAllSessions` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1550) |
| `killAllSessionsByPattern` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1551) |
| `killSessions` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1552) |
| `refreshSessions` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1553) |
| `startSession` | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1554) |
## Aggregation pipelines
Related [issue](https://github.com/FerretDB/FerretDB/issues/1917).
| Command | Argument | Status | Comments |
| ----------- | -------- | ------ | -------- |
| `aggregate` | | ✅️ | |
| `count` | | ✅ | |
| `distinct` | | ✅ | |
### Aggregation pipeline stages
| Stage | Status | Comments |
| -------------------- | ------ | --------------------------------------------------------- |
| `$addFields` | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/1413) |
| `$bucket` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1414) |
| `$bucketAuto` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1414) |
| `$changeStream` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1415) |
| `$changeStream` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1415) |
| `$collStats` | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/2447) |
| `$count` | ✅️ | |
| `$currentOp` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1444) |
| `$densify` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1418) |
| `$documents` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1419) |
| `$documents` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1419) |
| `$facet` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1420) |
| `$fill` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1421) |
| `$geoNear` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1412) |
| `$graphLookup` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1422) |
| `$group` | ✅️ | |
| `$indexStats` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1424) |
| `$limit` | ✅️ | |
| `$listLocalSessions` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1426) |
| `$listSessions` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1426) |
| `$lookup` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1427) |
| `$match` | ✅ | |
| `$merge` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1429) |
| `$out` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1430) |
| `$planCacheStats` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1431) |
| `$project` | ✅ | |
| `$redact` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1433) |
| `$replaceRoot` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1434) |
| `$replaceWith` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1434) |
| `$sample` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1435) |
| `$search` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1436) |
| `$searchMeta` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1436) |
| `$set` | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/1413) |
| `$setWindowFields` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1437) |
| `$skip` | ✅️ | |
| `$sort` | ✅️ | |
| `$sortByCount` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1440) |
| `$unionWith` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1441) |
| `$unset` | ✅️ | |
| `$unwind` | ✅️ | |
### Aggregation pipeline operators
| Operator | Status | Comments |
| ------------------------- | ------ | --------------------------------------------------------- |
| `$abs` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$accumulator` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$acos` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$acosh` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$add` (arithmetic) | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$add` (date) | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$addToSet` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$allElementsTrue` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1462) |
| `$and` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1455) |
| `$anyElementTrue` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1462) |
| `$arrayElemAt` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$arrayToObject` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$asin` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$asinh` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$atan` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$atan2` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$atanh` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$avg` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$binarySize` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1459) |
| `$bottom` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$bottomN` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$bsonSize` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1459) |
| `$ceil` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$cmp` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1456) |
| `$concat` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$concatArrays` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$cond` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1457) |
| `$convert` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$cos` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$cosh` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$count` | ✅️ | |
| `$covariancePop` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$covarianceSamp` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$dateAdd` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dateDiff` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dateFromParts` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dateFromString` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dateSubtract` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dateToParts` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dateToString` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dateTrunc` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dayOfMonth` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dayOfWeek` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$dayOfYear` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$degreesToRadians` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$denseRank` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$derivative` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$divide` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$documentNumber` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$eq` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1456) |
| `$exp` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$expMovingAvg` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$filter` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$first` (accumulator) | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$first` (array operator) | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$firstN` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$floor` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$function` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1458) |
| `$getField` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1471) |
| `$gt` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1456) |
| `$gte` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1456) |
| `$hour` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$ifNull` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1457) |
| `$in` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$indexOfArray` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$indexOfBytes` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$indexOfCP` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$integral` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$isArray` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$isNumber` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$isoDayOfWeek` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$isoWeek` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$isoWeekYear` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$last` (accumulator) | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$last` (array operator) | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$lastN` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$let` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1469) |
| `$linearFill` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$literal` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1470) |
| `$ln` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$locf` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$log` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$log10` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$lt` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1456) |
| `$lte` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1456) |
| `$ltrim` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$map` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$max` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$maxN` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$mergeObjects` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$meta` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$millisecond` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$min` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$minN` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$minute` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$mod` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$month` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$multiply` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$ne` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1456) |
| `$not` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1455) |
| `$objectToArray` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1461) |
| `$or` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1455) |
| `$pow` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$push` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$radiansToDegrees` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$rand` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/541) |
| `$range` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$rank` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$reduce` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$regexFind` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$regexFindAll` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$regexMatch` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$replaceAll` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$replaceOne` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$reverseArray` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$round` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$rtrim` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$sampleRate` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1472) |
| `$second` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$setDifference` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1462) |
| `$setEquals` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1462) |
| `$setField` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1461) |
| `$setIntersection` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1462) |
| `$setIsSubset` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1462) |
| `$setUnion` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1462) |
| `$shift` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1468) |
| `$sin` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$sinh` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$size` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$slice` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$sortArray` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
| `$split` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$sqrt` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$stdDevPop` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$stdDevSamp` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$strcasecmp` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$strLenBytes` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$strLenCP` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$substr` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$substrBytes` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$substrCP` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$subtract` (arithmetic) | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$subtract` (date) | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$sum` (accumulator) | ✅️ | |
| `$sum` (operator) | ✅️ | |
| `$switch` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1457) |
| `$tan` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$tanh` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1465) |
| `$toBool` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$toDate` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$toDecimal` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$toDouble` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$toInt` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$toLong` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$toLower` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$toObjectId` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$top` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$topN` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1467) |
| `$toString` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$toUpper` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$trim` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1463) |
| `$trunc` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1453) |
| `$tsIncrement` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1464) |
| `$tsSecond` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1464) |
| `$type` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1466) |
| `$unsetField` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1461) |
| `$week` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$year` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1460) |
| `$zip` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1454) |
## Administration commands
| Command | Argument / Option | Property | Status | Comments |
| --------------------------------- | ------------------------------ | ------------------------- | ------ | --------------------------------------------------------- |
| `cloneCollectionAsCapped` | | | ❌ | |
| | `toCollection` | | ⚠️ | |
| | `size` | | ⚠️ | |
| | `writeConcern` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `collMod` | | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1510) |
| | `index` | | ⚠️ | |
| | | `keyPattern` | ⚠️ | |
| | | `name` | ⚠️ | |
| | | `expireAfterSeconds` | ⚠️ | |
| | | `hidden` | ⚠️ | |
| | | `prepareUnique` | ⚠️ | |
| | | `unique` | ⚠️ | |
| | `validator` | | ⚠️ | |
| | | `validationLevel` | ⚠️ | |
| | | `validationAction` | ⚠️ | |
| | `viewOn` (Views) | | ⚠️ | |
| | `pipeline` (Views) | | ⚠️ | |
| | `cappedSize` | | ⚠️ | |
| | `cappedMax` | | ⚠️ | |
| | `changeStreamPreAndPostImages` | | ⚠️ | |
| `compact` | | | ✅ | |
| | `force` | | ✅ | |
| | `comment` | | ⚠️ | |
| `compactStructuredEncryptionData` | | | ❌ | |
| | `compactionTokens` | | ⚠️ | |
| `convertToCapped` | | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/3457) |
| | `size` | | ⚠️ | |
| | `writeConcern` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `create` | | | ✅ | |
| | `capped` | | ✅️ | |
| | `timeseries` | | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/177) |
| | | `timeField` | ⚠️ | |
| | | `metaField` | ⚠️ | |
| | | `granularity` | ⚠️ | |
| | `expireAfterSeconds` | | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/2415) |
| | `clusteredIndex` | | ⚠️ | |
| | `changeStreamPreAndPostImages` | | ⚠️ | |
| | `autoIndexId` | | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/3922) |
| | `size` | | ✅️ | |
| | `max` | | ✅ | |
| | `storageEngine` | | ⚠️ | Ignored |
| | `validator` | | ⚠️ | Not implemented in PostgreSQL |
| | `validationLevel` | | ⚠️ | Unimplemented |
| | `validationAction` | | ⚠️ | Unimplemented |
| | `indexOptionDefaults` | | ⚠️ | Ignored |
| | `viewOn` | | ⚠️ | Unimplemented |
| | `pipeline` | | ⚠️ | Unimplemented |
| | `collation` | | ❌ | Unimplemented |
| | `writeConcern` | | ⚠️ | Ignored |
| | `encryptedFields` | | ⚠️ | |
| | `comment` | | ⚠️ | Ignored |
| `createIndexes` | | | ✅ | |
| | `indexes` | | ✅ | |
| | | `key` | ✅ | |
| | | `name` | ✅️ | |
| | | `unique` | ✅ | |
| | | `partialFilterExpression` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/2448) |
| | | `sparse` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/2448) |
| | | `expireAfterSeconds` | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/2415) |
| | | `hidden` | ❌ | Unimplemented |
| | | `storageEngine` | ❌ | Unimplemented |
| | | `weights` | ❌ | Unimplemented |
| | | `default_language` | ❌ | Unimplemented |
| | | `language_override` | ❌ | Unimplemented |
| | | `textIndexVersion` | ❌ | Unimplemented |
| | | `2dsphereIndexVersion` | ❌ | Unimplemented |
| | | `bits` | ❌ | Unimplemented |
| | | `min` | ❌ | Unimplemented |
| | | `max` | ❌ | Unimplemented |
| | | `bucketSize` | ❌ | Unimplemented |
| | | `collation` | ❌ | Unimplemented |
| | | `wildcardProjection` | ❌ | Unimplemented |
| | `writeConcern` | | ⚠️ | |
| | `commitQuorum` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `currentOp` | | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/2399) |
| | `$ownOps` | | ⚠️ | |
| | `$all` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `drop` | | | ✅ | |
| | `writeConcern` | | ⚠️ | Ignored |
| | `comment` | | ⚠️ | Ignored |
| `dropDatabase` | | | ✅ | |
| | `writeConcern` | | ⚠️ | Ignored |
| | `comment` | | ⚠️ | Ignored |
| `dropConnections` | | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1511) |
| | `hostAndPort` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `dropIndexes` | | | ✅ | |
| | `index` | | ✅ | |
| | `writeConcern` | | ⚠️ | Ignored |
| | `comment` | | ⚠️ | Ignored |
| `filemd5` | | | ❌ | |
| `fsync` | | | ❌ | |
| `fsyncUnlock` | | | ❌ | |
| | `lock` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `getDefaultRWConcern` | | | ❌ | |
| | `inMemory` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `getClusterParameter` | | | ❌ | |
| `getParameter` | | | ❌ | |
| | `comment` | | ⚠️ | |
| `killCursors` | | | ✅ | |
| | `cursors` | | ✅ | |
| | `comment` | | ⚠️ | |
| `killOp` | | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1515) |
| | `op` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `listCollections` | | | ✅ | |
| | `filter` | | ✅ | |
| | `nameOnly` | | ✅ | |
| | `authorizedCollections` | | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/3770) |
| | `comment` | | ⚠️ | |
| `listDatabases` | | | ✅ | |
| | `filter` | | ✅ | |
| | `nameOnly` | | ✅ | |
| | `authorizedDatabases` | | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/3769) |
| | `comment` | | ⚠️ | Ignored |
| `listIndexes` | | | ✅ | |
| | `cursor.batchSize` | | ⚠️ | Ignored |
| | `comment` | | ⚠️ | Ignored |
| `logRotate` | | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1959) |
| | `<target>` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `reIndex` | | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1516) |
| `renameCollection` | | | ✅ | |
| | `to` | | ✅ | [Issue](https://github.com/FerretDB/FerretDB/issues/2563) |
| | `dropTarget` | | ⚠️ | [Issue](https://github.com/FerretDB/FerretDB/issues/2565) |
| | `writeConcern` | | ⚠️ | Ignored |
| | `comment` | | ⚠️ | Ignored |
| `rotateCertificates` | | | ❌ | |
| `setFeatureCompatibilityVersion` | | | ❌ | |
| `setIndexCommitQuorum` | | | ❌ | |
| | `setIndexCommitQuorum` | | ⚠️ | |
| | `indexNames` | | ⚠️ | |
| | `commitQuorum` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `setParameter` | | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1518) |
| `setDefaultRWConcern` | | | ❌ | |
| | `defaultReadConcern` | | ⚠️ | |
| | `defaultWriteConcern` | | ⚠️ | |
| | `writeConcern` | | ⚠️ | |
| | `comment` | | ⚠️ | |
| `shutdown` | | | ❌ | [Issue](https://github.com/FerretDB/FerretDB/issues/1519) |
| | `force` | | ⚠️ | |
| | `timeoutSecs` | | ⚠️ | |
| | `comment` | | ⚠️ | |
## Diagnostic commands
| Command | Argument | Status | Comments |
| -------------------- | ---------------------- | ------ | -------------------------------- |
| `buildInfo` | | ✅ | Basic command is fully supported |
| `collStats` | | ✅ | Basic command is fully supported |
| | `collStats` | ✅ | |
| | `scale` | ✅ | |
| `connPoolStats` | | ❌ | Unimplemented |
| `connectionStatus` | | ✅ | Basic command is fully supported |
| | `showPrivileges` | ✅ | |
| `dataSize` | | ✅ | Basic command is fully supported |
| | `keyPattern` | ⚠️ | Unimplemented |
| | `min` | ⚠️ | Unimplemented |
| | `max` | ⚠️ | Unimplemented |
| | `estimate` | ⚠️ | Ignored |
| `dbHash` | | ❌ | Unimplemented |
| | `collection` | ⚠️ | |
| `dbStats` | | ✅ | Basic command is fully supported |
| | `scale` | ✅ | |
| | `freeStorage` | ⚠️ | Unimplemented |
| `driverOIDTest` | | ⚠️ | Unimplemented |
| `explain` | | ✅ | Basic command is fully supported |
| | `verbosity` | ⚠️ | Ignored |
| | `comment` | ⚠️ | Unimplemented |
| `features` | | ❌ | Unimplemented |
| `getCmdLineOpts` | | ✅ | Basic command is fully supported |
| `getLog` | | ✅ | Basic command is fully supported |
| `hostInfo` | | ✅ | Basic command is fully supported |
| `_isSelf` | | ❌ | Unimplemented |
| `listCommands` | | ✅ | Basic command is fully supported |
| `lockInfo` | | ❌ | Unimplemented |
| `netstat` | | ❌ | Unimplemented |
| `ping` | | ✅ | Basic command is fully supported |
| `profile` | | ❌ | Unimplemented |
| | `slowms` | ⚠️ | |
| | `sampleRate` | ⚠️ | |
| | `filter` | ⚠️ | |
| `serverStatus` | | ✅ | Basic command is fully supported |
| `shardConnPoolStats` | | ❌ | Unimplemented |
| `top` | | ❌ | Unimplemented |
| `validate` | | ✅ | Basic command is fully supported |
| | `full` | ⚠️ | |
| | `repair` | ⚠️ | |
| | `metadata` | ⚠️ | |
| | `checkBSONConformance` | ⚠️ | |
| `validateDBMetadata` | | ❌ | Unimplemented |
| | `apiParameters` | ⚠️ | |
| | `db` | ⚠️ | |
| | `collections` | ⚠️ | |
| `whatsmyuri` | | ✅ | Basic command is fully supported |