protected function getViewExists()
{
return [[null, "SELECT CASE WHEN COUNT(*) > 0 THEN 1 ELSE 0 END FROM pg_views WHERE viewname='view' AND schemaname='public'"], ['schema', "SELECT CASE WHEN COUNT(*) > 0 THEN 1 ELSE 0 END FROM pg_views WHERE viewname='view' AND schemaname='schema'"]];
}