[IGNITE-5396] ODBC: Clear server cursor automatically when last result piece is transmitted

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0
• Fix Version/s: 2.1
• Component/s: odbc
• Labels: odbc performance
• Assignee: Igor Sapego
• Reporter: Vladimir Ozerov
• Created: 02/Jun/17 13:50
• Updated: 20/Jun/17 15:52
• Resolved: 20/Jun/17 15:52

Description

When last part of result set is sent from the server, we should do the following:
1) Clear server-side cursor
2) Set special marker on the client side that "cursor" close request is not needed. This way we will save two network hops for typical DML request.

Issue Links

• links to: GitHub Pull Request #2143
• links to: Upsource review #203