" Fixes to the view building process, discovered from field experience. Tests: dtest(materialized_view_tests.py, smp=2) " * 'views/view-build-fixes/v1' of https://github.com/duarten/scylla: db/view: Start view building after schema agreement db/system_keyspace: scylla_views_builds_in_progress writes are user mem db/view: Require configuration option to enable view building