[IMPALA-8997] Allow graceful fallback to mt_dop=0

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 3.4.0
• Component/s: Frontend
• Epic Color: ghx-label-5
• Assignee: Tim Armstrong
• Reporter: Tim Armstrong
• Created: 02/Oct/19 04:20
• Updated: 22/Oct/19 00:35
• Resolved: 22/Oct/19 00:35

Description

We should provide a way to specify mt_dop and have Impala automatically fall back to non-mt_dop for queries where it isn't supported.