[HIVE-17884] Implement create, alter and drop workload management triggers

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Labels: TODOC3.0
• Assignee: Harish JP
• Reporter: Harish JP
• Created: 24/Oct/17 10:53
• Updated: 22/May/18 23:12
• Resolved: 30/Oct/17 19:14

Description

Implement triggers for workload management:

The commands to be implemented:

CREATE TRIGGER `resourceplan_name`.`trigger_name` WHEN condition DO action;
condition is a boolean expression: variable operator value types with 'AND' and 'OR' support.
action is currently: KILL or MOVE TO pool;

ALTER TRIGGER `plan_name`.`trigger_name` WHEN condition DO action;

DROP TRIGGER `plan_name`.`trigger_name`;

Also add WM_TRIGGERS to information schema.