What does Atlan crawl from MongoDB (self-managed)?

This reference document details the MongoDB (self-managed) assets and properties that Atlan crawls and maps during metadata extraction. Atlan currently doesn't support lineage for MongoDB (self-managed) assets.

Assets

Atlan crawls and maps the following asset types from MongoDB (self-managed): databases, Collections, and columns. After crawling MongoDB (self-managed), you can use connector-specific filters to discover assets. The Collection type filter is available for Collections, allowing you to filter by collection types including Time Series, Capped, and Clustered.

The following sections show how each asset type is mapped from MongoDB to Atlan, including source properties and their corresponding Atlan properties.

Databases

Atlan maps databases from MongoDB to its Database asset type.

Source property	Atlan property
TABLE_CAT	name
TABLE_COUNT	mongoDBDatabaseCollectionCount

Collections

Atlan maps Collections from MongoDB to its Collection asset type.

Source property	Atlan property
TABLE_NAME	name
TABLE_CAT	databaseName
COLUMN_COUNT	columnCount
collStats.storageSize	sizeBytes
collStats.count	rowCount
type	mongoDBCollectionSubtype
schema	mongoDBCollectionSchemaDefinition
collStats.capped	mongoDBCollectionIsCapped
collStats.maxSize	mongoDBCollectionMaxSize
collStats.max	mongoDBCollectionMaximumDocumentCount
options.timeseries.timeField	mongoDBCollectionTimeField
options.timeseries.granularity	mongoDBCollectionTimeGranularity
options.expireAfterSeconds	mongoDBCollectionExpireAfterSeconds
collStats.numOrphanDocs	mongoDBCollectionNumOrphanDocs
collStats.nindexes	mongoDBCollectionNumIndexes
collStats.totalIndexSize	mongoDBCollectionTotalIndexSize
collStats.avgObjSize	mongoDBCollectionAverageObjectSize

Columns

Atlan maps the following metadata from MongoDB to its Column asset type. For details on how column schemas are consolidated and what limitations apply, see How are column schemas consolidated and what are the limitations? in the FAQ.

Atlan property	Where in Atlan
name	name
order	order
dataType	dataType
rawdataTypeDefinition (raw schema of nested columns in a given parent column)	rawdataTypeDefinition
parentColumnQualifiedName (complete hierarchy from parent column to child column)	parentColumnQualifiedName
nosqlCollectionName	collection