[HIVE-16376] Driver.queryState.commandType is often not set correctly

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.0.0
• Assignee: Unassigned
• Reporter: Eugene Koifman
• Created: 04/Apr/17 22:29
• Updated: 04/Apr/17 22:29

Description

For example, various EXPLAIN <....> operations all have this set to QUERY though it would make more sense to set it to HiveOperation.EXPLAIN especially since ExplainSemanticAnalyzer forks off another instance of Driver to run the <...> for EXPLAIN ANALYZE <...> types of commands but shares the QueryState between the 2.

Changing this of course causes a lot of .q.out files to change.

It would useful in general for the Driver to know the HiveOperation type more precisely.

For example, there is no distinction between SELECT/UPDATE/INSERT/DELETE/MERGE.

Need to clean this up.

Issue Links

• is blocked by: HIVE-12636 Ensure that all queries (with DbTxnManager) run in a transaction