[FEATURE] Skipping index and materialized view refresh synchronization

[dai-chen]

Is your feature request related to a problem?

Currently there is no coordination between skipping index and materialized view auto refresh. In the case of materialized view with filtering condition that can be accelerated by skipping index, the initial backlog processing should be fine. However, when MV refresh catches up, each micro batch of skipping index refresh on same source file list is not guaranteed to finish before MV. If hybrid scan is not enabled, skipping index may tell MV there is no file matched the filtering condition for current micro batch.

What solution would you like?

1. Add basic IT to make sure MV refresh can be accelerated by skipping index
2. Look into code to verify if the issue above may happen
3. Quick solution would be enabling hybrid scan mode in this case

[dai-chen]

This may be resolved in #218.