Using Cerulean you can create a new data source in a Cognitive Search account. Following
types of data sources: "Azure Blob", "Azure SQL", "Azure Table", and "Cosmos DB SQL API"
can be created using Cerulean.
Using Cerulean you can configure data change detection policy for "Azure SQL" and "Cosmos DB SQL API" types of data sources.
When such data source is used with an indexer, the target index's data will be automatically updated once the source data changes.
For all supported data source types, you can configure data deletion detection policy using Cerulean.
When such data source is used with an indexer, data from the target index will be automatically removed once the source data is deleted.