Support materialized view

[irotoris]

BigQuery Materialized View: https://cloud.google.com/bigquery/docs/materialized-views-intro

e.g.

SELECT * FROM dataset.table

metadata:
  description: test materialized view
  labels:
    app: test
    role: test
  materializedView:
    enableRefresh: true
    refreshInterval: 1800000  # millisecond

Note

• Updating materialized view query BigQuery API is not yet supported. So Use Deleting and Creating API.