Audit log format reference: https://cloud.google.com/bigquery/docs/reference/auditlogs
More sample queries: https://cloud.google.com/logging/docs/view/query-library#bigquery-filters
Get logs for dataset delete operations:
resource.type="bigquery_resource"
protoPayload.methodName="datasetservice.delete"
protoPayload.resourceName:"projects/{project_id}/datasets/{dataset_id}"
Get logs for table delete operations:
// exact match
resource.type="bigquery_resource"
protoPayload.methodName="tableservice.delete"
protoPayload.resourceName="projects/{project_id}/datasets/{dataset_id}/tables/{table_id}"
// filter by dataset (match by prefix)
resource.type="bigquery_resource"
protoPayload.methodName="tableservice.delete"
protoPayload.resourceName:"projects/{project_id}/datasets/{dataset_id}/"