[CALCITE-1357] Recognize Druid Timeseries and TopN queries in DruidQuery

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.9.0
• Fix Version/s: 1.9.0
• Component/s: druid-adapter
• Assignee: Jesus Camacho Rodriguez
• Reporter: Jesus Camacho Rodriguez
• Created: 23/Aug/16 19:14
• Updated: 16/Jan/17 14:34
• Resolved: 15/Sep/16 04:53

Description

Port the work done in HIVE-14217 to recognize Timeseries and TopN queries to Calcite.

This includes a rule to push SortLimit into DruidQuery, which can lead to creating TopN queries. This rule can help to push sorting and limit into GroupBy queries, and limit to Select queries.

Issue Links

• blocks: CALCITE-1356 Release Calcite 1.9.0
• breaks: CALCITE-1577 Druid adapter: Incorrect result - limit on timestamp disappears
• is related to: HIVE-14466 Extend Calcite capabilities to transform plan into Druid query
• relates to: CALCITE-1121 Druid adapter