I simply changed the dataset, tableName specific to my project and ran the class samples/snippets/src/main/java/com/example/bigquery/UpdateViewQuery.java.

It does not update the View query.

Reason I found.

ViewDefinition viewDefinition = viewMetadata.getDefinition();
viewDefinition.toBuilder().setQuery(query).build();

// Set metadata
bigquery.update(viewMetadata.toBuilder().setDefinition(viewDefinition).build());

The above code snippet creates a new ViewDefinition using the toBuilder() method but never really passes it to the bigquery.update() method. Old viewDefinition instance is passed. So the view query remains the same.

Is it intentional?