[CALCITE-2095] Druid adapter: Push always true and always true expressions as Expression Filters

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.16.0
• Component/s: druid-adapter
• Assignee: Slim Bouguerra
• Reporter: Slim Bouguerra
• Created: 18/Dec/17 15:15
• Updated: 17/Mar/18 17:43
• Resolved: 19/Dec/17 23:12

Description

Druid 0.11.0 version adds new kind of filter called expressions. This filter can be used to expression filters like always true

 {type:expression, expression: 1 ==1}

or always false

  {type:expression, expression: 1 ==2}  

.

Issue Links

• Is contained by: CALCITE-2094 Druid adapter: Count(*) returns null instead of 0 when condition filters all rows