[HIVE-16751] Support different types for grouping columns in GroupBy Druid queries

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Druid integration
• Target Version/s: 3.0.0
• Assignee: Jesus Camacho Rodriguez Assign to me
• Reporter: Jesus Camacho Rodriguez
• Created: 24/May/17 14:35
• Updated: 22/May/18 23:59
• Resolved: 23/Jun/17 15:51

Description

Calcite 1.13 pushes EXTRACT and FLOOR function to Druid as an extraction function (cf CALCITE-1758). Originally, we were assuming that all group by columns in a druid query were of STRING type; however, this will not true anymore (result of EXTRACT is an INT and result of FLOOR a TIMESTAMP).

When we upgrade to Calcite 1.13, we will need to extend the DruidSerDe to handle these functions.

Issue Links

• relates to: HIVE-16888 Upgrade Calcite to 1.13 and Avatica to 1.10