There are multiple responses to this suggestion.
Support for SQL-like syntax for UPDATE, DELETE and INSERT INTO are not on our road map at this time.
However, the underlying functionality for an UPDATE, SET is essentially a PATCH. This functionality we are actively working on. See this User Voice item here to track for future updates. https://feedback.azure.com/forums/263030-azure-cosmos-db/suggestions/6693091-be-able-to-do-partial-updates-on-document
Thank you for your suggestion.
The below is still accurate, but updating to better reflect product backlog. Keep the votes coming.
1,529 votesunplanned · AdminSQL Database feature voting forum admins (Product Owner, Microsoft Azure) responded
Not planned at this time. Will keep this item open for future review.
An error occurred while saving the commentScott commented
Hm... are you sure this is correct? I have actually used External Tables (Polybase) within an Azure SQL Database. However, the source is a read-only replicated Azure SQL database, not blob/file source. We did this to ingest/land data into a data warehouse.
1,386 votesunplanned · AdminSQL Database feature voting forum admins (Product Owner, Microsoft Azure) responded
This is not currently planned at this time. Will keep this item open for voting and comments.