[DRILL-5301] Add server metadata API

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.10.0
• Component/s: Server, Client - C++, Client - Java, Client - JDBC, Client - ODBC
• Labels: ready-to-commit
• Assignee: Laurent Goujon
• Reporter: Laurent Goujon
• Reviewer: Chun Chang
• Created: 27/Feb/17 17:35
• Updated: 02/Nov/17 23:05
• Resolved: 02/Mar/17 22:49

Description

JDBC and ODBC clients exposes lots of metadata regarding server version and support of various parts of the SQL standard.

Currently the returned information is hardcoded in both clients/drivers which means that the infomation returned is support as of the client version, not the server version.

Instead, a new method should be provided to the clients to query the actual server support. Support on the client or the server should be optional (for example a client should not use this API if the server doesn't support it and fallback to default values).

Issue Links

• relates to: DRILL-5402 ServerMeta should be updated during the session, if the last has been changed.
• requires: DRILL-5373 Drill JDBC error in the process of connection via SQuirrel: java.lang.NoClassDefFoundError: javax/validation/constraints/NotNull
• links to: GitHub Pull Request #764