[BEAM-12913] Enable configuring query priority in Python ReadFromBigQuery

• Type: Improvement
• Status: Triage Needed
• Priority: P3
• Resolution: Fixed
• Affects Version/s: 2.32.0
• Fix Version/s: 2.34.0
• Component/s: io-py-gcp
• Assignee: Chun Yang
• Reporter: Chun Yang
• Created: 18/Sep/21 03:17
• Updated: 13/Apr/23 11:07
• Resolved: 26/Sep/21 09:32

Description

Submitting BigQuery queries with BATCH priority allows queries to be started when idle resources are available and allows queries submitted from Beam to not count toward a project's concurrent rate limit.

The Java BigQueryIO enables configuring the query priority. We should enable the same configuration in the Python ReadFromBigQuery.

Issue Links

• links to: GitHub Pull Request #15536
• links to: GitHub Pull Request #15584