[DRILL-7985] Support Mongo aggregate, union, project, limit, sort pushdowns

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.20.0
• Fix Version/s: 1.20.0
• Assignee: Vova Vysotskyi
• Reporter: Vova Vysotskyi
• Created: 08/Aug/21 14:36
• Updated: 14/Sep/21 14:28
• Resolved: 14/Sep/21 14:28

Description

Add support for more mongo pushdowns:

• aggregate
• project (including expressions)
• limit (including offset)
• union / union all
• sort