Supported features: 8.0

The following tables include a breakdown of MongoDB 8.0 features supported by Firestore with MongoDB compatibility. For differences in behavior, see Behavior differences .

Query and projection operators

Firestore with MongoDB compatibility supports the following query and projection operators:

Array operators

Operator	Supported
$all	Yes
$elemMatch	Yes
$size	Yes

Bitwise operators

Operator	Supported
$bitsAllClear	No
$bitsAllSet	No
$bitsAnyClear	No
$bitsAnySet	No

Comment operator

Operator	Supported
$comment	No

Comparison operators

Operator	Supported
$eq	Yes
$gt	Yes
$gte	Yes
$in	Yes
$lt	Yes
$lte	Yes
$ne	Yes
$nin	Yes

Element operators

Operator	Supported
$exists	Yes
$type	Yes

Evaluation query operators

Operator	Supported
$expr	Yes
$jsonSchema	No
$mod	Yes
$regex	Yes
$text	No
$where	No

Logical operators

Operator	Supported
$and	Yes
$nor	Yes
$not	Yes
$or	Yes

Projection operators

Operator	Supported
$	Yes
$elemMatch	Yes
$meta	No
$slice	Yes

Update operators

Firestore with MongoDB compatibility supports the following update operators.

Array operators

Operator	Supported
$	Yes
$[]	Yes
$[<identifier>]	Yes
$addToSet	Yes
$percentile	Yes
$pop	Yes
$pull	Yes
$pullAll	Yes
$push	Yes

Bitwise operators

Operator	Supported
$bit	Yes

Field operators

Operator	Supported
$currentDate	Yes
$inc	Yes
$max	Yes
$min	Yes
$mul	Yes
$rename	Yes
$set	Yes
$setOnInsert	Yes
$unset	Yes

Update modifiers

Modifier	Supported
$each	Yes
$position	Yes
$slice	Yes
$sort	Yes

Aggregation pipeline operators

Firestore with MongoDB compatibility supports the following aggregation pipeline operators.

Accumulators

Expression	Supported
$accumulator	No
$addToSet	Yes
$avg	Yes
$bottom	No
$bottomN	No
$count	Yes
$first	Yes
$firstN	No
$last	Yes
$lastN	No
$max	Yes
$maxN	No
$median	No
$mergeObjects	Yes
$min	Yes
$minN	No
$percentile	No
$push	Yes
$stdDevPop	No
$stdDevSamp	No
$sum	Yes
$top	No
$topN	No

Accumulator expressions

Expression	Supported
$avg	Yes
$first	Yes
$last	Yes
$max	Yes
$median	Yes
$min	Yes
$percentile	Yes
$stdDevPop	No
$stdDevSamp	No
$sum	Yes

Arithmetic operators

Limitations: Arithmetic operators don't support decimal128 values.

Operator	Supported
$abs	Yes
$add	Yes
$ceil	Yes
$divide	Yes
$exp	Yes
$floor	Yes
$ln	Yes
$log	Yes
$log10	Yes
$mod	Yes
$multiply	Yes
$pow	Yes
$round	Yes
$sqrt	Yes
$subtract	Yes
$trunc	Yes

Array operators

Operator	Supported
$arrayElemAt	Yes
$arrayToObject	Yes
$concatArrays	Yes
$filter	Yes
$firstN	Yes
$in	Yes
$indexOfArray	Yes
$isArray	Yes
$lastN	Yes
$map	Yes
$maxN	Yes
$minN	Yes
$objectToArray	Yes
$range	Yes
$reduce	Yes
$reverseArray	Yes
$size	Yes
$slice	Yes
$sortArray	Yes
$zip	Yes

Boolean operators

Operator	Supported
$and	Yes
$not	Yes
$or	Yes

Comparison operators

Operator	Supported
$cmp	Yes
$eq	Yes
$gt	Yes
$gte	Yes
$lt	Yes
$lte	Yes
$ne	Yes

Conditional expression operators

Operator	Supported
$cond	Yes
$ifNull	Yes
$switch	Yes

Data size operators

Operator	Supported
$binarySize	Yes
$bsonSize	Yes

Date operators

Operator	Supported
$dateAdd	Yes
$dateDiff	Yes
$dateFromParts	Yes
$dateFromString	Yes
$dateSubtract	Yes
$dateToParts	Yes
$dateToString	Yes
$dateTrunc	Yes
$dayOfMonth	Yes
$dayOfWeek	Yes
$dayOfYear	Yes
$hour	Yes
$isoDayOfWeek	Yes
$isoWeek	Yes
$isoWeekYear	Yes
$millisecond	Yes
$minute	Yes
$month	Yes
$second	Yes
$toDate	Yes
$week	Yes
$year	Yes

Timestamp operators

Operator	Supported
$tsIncrement	No
$tsSecond	No

Miscellaneous operators

Operator	Supported
$getField	Yes
$natural	Yes (ascending)
$rand	No
$sampleRate	No
$toHashedIndexKey	No

Literal expression operators

Operator	Supported
$literal	Yes

Object operators

Operator	Supported
$mergeObjects	Yes
$objectToArray	Yes
$setField	No

Set operators

Operator	Supported
$allElementsTrue	Yes
$anyElementTrue	Yes
$setDifference	Yes
$setEquals	Yes
$setIntersection	Yes
$setIsSubset	Yes
$setUnion	Yes

Stage operators

Operator	Supported
$addFields	Yes
$bucket	Yes
$bucketAuto	No
$changeStreams	No
$collStats	No
$count	Yes
$currentOp	No
$documents	Yes
$facet	Yes
$geoNear	No
$graphLookup	No
$group	Yes
$indexStats	No
$limit	Yes
$listLocalSessions	No
$listSessions	No
$lookup	Yes Doesn't support the let and pipeline fields.
$match	Yes
$merge	No
$out	No
$planCacheStats	No
$project	Yes
$redact	No
$replaceRoot	Yes
$replaceWith	Yes
$sample	No
$set	Yes
$search	No
$setWindowFields	No
$skip	Yes
$sort	Yes
$sortByCount	Yes
$unionWith	Yes
$unset	Yes
$unwind	Yes

String operators

Operator	Supported
$concat	Yes
$dateFromString	Yes
$dateToString	Yes
$indexOfBytes	Yes
$indexOfCP	Yes
$ltrim	Yes
$regexFind	Yes
$regexFindAll	Yes
$regexMatch	Yes
$replaceAll	Yes
$replaceOne	Yes
$rtrim	Yes
$split	Yes
$strcasecmp	Yes
$strLenBytes	Yes
$strLenCP	Yes
$substr	Yes
$substrBytes	Yes
$substrCP	Yes
$toLower	Yes
$toString	Yes
$toUpper	Yes
$trim	Yes

System variables

Variable	Supported
$$CLUSTERTIME	No
$$CURRENT	No
$$DESCEND	No
$$KEEP	No
$$NOW	Yes
$$PRUNE	No
$$REMOVE	Yes
$$ROOT	Yes

Text operators

Operator	Supported
$meta	No

Trigonometry operators

Operator	Supported
$acos	No
$acosh	No
$asin	No
$asinh	No
$atan	No
$atan2	No
$atanh	No
$cos	No
$cosh	No
$degreesToRadians	No
$radiansToDegrees	No
$sin	No
$sinh	No
$tan	No
$tanh	No

Type operators

Operator	Supported
$convert	Yes
$isNumber	Yes
$toBool	Yes
$toDate	Yes
$toDecimal	Yes
$toDouble	Yes
$toInt	Yes
$toLong	Yes
$toObjectId	Yes
$toString	Yes
$type	Yes

Variable operators

Operator	Supported
$let	Yes

Geospatial

Firestore with MongoDB compatibility supports the following Geospatial operators.

Geometry specifiers

Specifier	Supported
$box	No
$center	No
$centerSphere	No
$geometry	No
$maxDistance	No
$minDistance	No
$polygon	No
$uniqueDocs	No

Query selectors

Selector	Supported
$geoIntersects	No
$geoWithin	No
$near	No
$nearSphere	No
$nearSphere	No
$uniqueDocs	No

Indexes and index properties

Firestore with MongoDB compatibility supports the following indexes and index operators.

Indexes

Index type	Supported
2d	No
2dsphere	No
Compound	Yes
Hashed	No
Multikey	Yes
Single Field	Yes
Text	No

Index properties

Property	Supported
Background	Yes
Case Insensitive	No
Hidden	No
Partial	No
Non-Sparse	Yes
Sparse	Yes
Text	No
TTL	No
Unique	Yes
Wildcard	No
Vector	No

Database commands

Firestore with MongoDB compatibility supports the following database commands.

Aggregation

Command	Supported
aggregate	Yes
count	Yes
distinct	Yes
group	No The $group stage in aggregations is supported whereas the group command isn't.
mapReduce	No

Authentication

Command	Supported
authenticate	No
getnonce	No
logout	No

Query and write operations

Command	Supported
watch (Change Streams)	No
delete	Yes
eval	No
find	Yes
findAndModify	Yes
getLastError	Yes
getMore	Yes
getPrevError	No
GridFS	No
insert	Yes
parallelCollectionScan	No
replaceOne	No The replaceOne driver method is supported with the update command.
resetError	No
update	Yes

Session commands

Command	Supported
abortTransaction	Yes
commitTransaction	Yes
endSessions	Yes
killAllSessions	No
killAllSessionsByPattern	No
killSessions	No
refreshSessions	No
startSession	Sessions can be started using the startSession driver method.

Administrative commands

Firestore with MongoDB compatibility supports the following administrative commands.

Command	Supported
cloneCollectionAsCapped	No
collMod	No
collMod: expireAfterSeconds	No
convertToCapped	No
copydb	No
create	Yes
createIndex	Yes To create indexes, see Manage indexes .
createIndexes	Yes To create indexes, see Manage indexes .
createView	No
currentOp	No
drop	No
dropDatabase	No To delete a database, see Delete a database .
dropIndex	Yes To delete indexes, see Manage indexes .
dropIndexes	No
filemd5	No
getAuditConfig	No
killCursors	Yes
killOp	No
listCollections	Yes
listDatabases	Yes
listIndexes	Yes
reIndex	No
renameCollection	No
setAuditConfig	No

Diagnostic commands

Command	Supported
buildInfo	Yes
collStats	No
connectionStatus	Yes
connPoolStats	No
dataSize	No
dbHash	No
dbStats	No
explain	Yes For behavior differences and limitations, see Query Explain
features	No
hello	Yes
hostInfo	Yes
listCommands	No
profiler	No
serverStatus	No
top	No
whatsmyuri	No

Role management commands

To manage database access, Firestore with MongoDB compatibility supports Identity and Access Management roles and permissions .

Command	Supported
createRole	No
dropAllRolesFromDatabase	No
dropRole	No
grantRolesToRole	No
revokePrivilegesFromRole	No
revokeRolesFromRole	No
rolesInfo	No
updateRole	No

What's next

• Run the Quickstart: Create a database and connect to it .
• Learn about Behavior differences .