[HIVE-5006] Re-factor HiveServer2 JDBC PreparedStatement to avoid duplicate code

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.11.0
• Fix Version/s: 0.12.0
• Component/s: HiveServer2, JDBC
• Assignee: Prasad Suresh Mujumdar
• Reporter: Prasad Suresh Mujumdar
• Created: 06/Aug/13 07:53
• Updated: 15/Oct/13 23:30
• Resolved: 09/Aug/13 21:51

Description

The JDBC PreparedStatement interface extends Statement interface. The Hive JDBC driver implementations of HivePreparedStatement interface is disjoint from the HiveStatement implementation. As a result there's some duplicate code in these two classes for executing query. Also patches like implicit close on re-execute etc. are not there for PreparedStatement.

The HivePreparedStatement should extend the HiveStatement.