Supported features: 5.0

The following tables include a breakdown of MongoDB 4.0 features supported by Cloud Firestore. For differences in behavior, see Behavior differences.

Query and projection operators

Cloud Firestore 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

Cloud Firestore supports the following update operators.

Array operators

Operator Supported
$ Yes
$[] Yes
$[<identifier>] Yes
$addToSet 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
$setOnInsert Yes

Update modifiers

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

Aggregation pipeline operators

Cloud Firestore supports the following aggregation pipeline operators.

Accumulators

Expression Supported
$addToSet Yes
$avg Yes
$count Yes
$first Yes
$last Yes
$max Yes
$mergeObjects Yes
$min Yes
$push Yes
$stdDevPop No
$stdDevSamp No
$sum Yes

Accumulator expressions

Expression Supported
$avg Yes
$first Yes
$last Yes
$max Yes
$min 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
$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
$map Yes
$objectToArray Yes
$range Yes
$reduce Yes
$reverseArray Yes
$size Yes
$slice 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

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

Miscellaneous operators

Operator Supported
$getField Yes
$natural Yes (ascending)
$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
$collStats No
$count Yes
$currentOp No
$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
$out No
$project Yes
$redact No
$replaceRoot Yes
$sample No
$set Yes
$setWindowFields No
$skip Yes
$sort Yes
$sortByCount Yes
$unset Yes
$unwind Yes

String operators

Operator Supported
$concat Yes
$dateFromString Yes
$dateToString Yes
$indexOfBytes Yes
$indexOfCP Yes
$ltrim 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
$$CURRENT No
$$DESCEND No
$$KEEP No
$$PRUNE No
$$REMOVE Yes
$$ROOT Yes

Text operators

Operator Supported
$meta No

Type operators

Operator Supported
$convert 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

Cloud Firestore 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

Cloud Firestore 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
Partial No
Non-Sparse Yes
Sparse Yes
Text No
TTL No
Unique Yes

Database commands

Cloud Firestore 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

Cloud Firestore 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, Cloud Firestore 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

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