[SPARK-34024] datasourceV1 VS dataSourceV2

• Type: Question
• Status: Closed
• Priority: Critical
• Resolution: Invalid
• Affects Version/s: 3.0.0
• Component/s: Input/Output
• Assignee: Unassigned
• Reporter: Zhenglin luo
• Created: 06/Jan/21 07:45
• Updated: 07/Jan/21 03:02
• Resolved: 06/Jan/21 19:13

Description

I found that DataSourceV2 has been through many versions .So why hasn't datasourceV2 been used by default until now in the latest version.I want to know if it’s because there is a big difference in execution efficiency between v1 and v2. Or there are other reasons.

Thanks a lot