google-cloud-bigquery 0.27.0

Implementation

• Remove client-side enum validation. (#3735)
• Add Table.row_from_mapping helper. (#3425)
• Move google.cloud.future to google.api.core (#3764)
• Fix __eq__ and __ne__. (#3765)
• Move google.cloud.iterator to google.api.core.page_iterator (#3770)
• nullMarker support for BigQuery Load Jobs (#3777), h/t @leondealmeida
• Allow job_id to be explicitly specified. (#3779)
• Add support for a custom null marker. (#3776)
• Add SchemaField serialization and deserialization. (#3786)
• Add get_query_results method. (#3838)
• Poll via getQueryResults method. (#3844)
• Allow fetching more than the first page when max_results is set. (#3845)