[DRILL-3305] DrillOptiq should raise appropriate error message while dealing with unknown RexNode

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.1.0
• Assignee: Mehant Baid
• Reporter: Mehant Baid
• Created: 17/Jun/15 21:36
• Updated: 18/Jun/15 07:27
• Resolved: 18/Jun/15 07:27

Description

Currently for certain types of RexNodes (RexOver, RexCorrelVariable) DrillOptiq does not convert it to the equivalent logical expressions. In that case we simply return a NullExpression (minor type: Null) and we error out later in execution when we try to allocate a vector with minor type Null. We should error out early in DrillOptiq that there was a planning issue indicating the particular RexNode that wasn't handled correctly.