[TAJO-910] Simple query (non-forwarded query) should be supported against partition tables.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Component/s: distributed query plan, Physical Operator, TajoMaster
• Assignee: Hyoungjun Kim
• Reporter: Hyunsik Choi
• Created: 04/Jul/14 10:07
• Updated: 27/Sep/14 18:11
• Resolved: 27/Sep/14 18:11

Description

There are two types of queries according to whether a query is executed across cluster nodes or not.

We call a query which is executed across cluster nodes forwarded query, meaning that TajoMaster forwards the query to a query master. In contrast, we call a query without distributed execution simple query or non-forwarded query, which executed in only client side. The following query is an example of simple query.

select * from table limit 10;

Currently, simple query is only supported against a normal table. We also should support it against partitioned tables.