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Operating System:
ALL
Steps To Reproduce:
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Create collection C1

Create the on-demand materialized view MV1 on the C1 with all matched

Watch MV1

Insert something in C1

Expected:

The change in MV1 is caught by the watcher

Actual:

The change in MV1 is NOT caught by the watcher
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Create collection C1 Create the on-demand materialized view MV1 on the C1 with all matched Watch MV1 Insert something in C1 Expected : The change in MV1 is caught by the watcher Actual : The change in MV1 is NOT caught by the watcher

The same code works with a regular Mongo collection but doesn't catch any events happening to the on-demand materialized view.

I found the test which checks that the Change Stream is not supported for normal views.

However, I didn't find any limitations/restrictions to using Change Streams with on-demand materialized views.

is related to

SERVER-78231 Change Stream is not working with on-demand materialized views