[TAJO-760] (Umbrella) Implement Datetime functions

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Assignee: Unassigned
• Reporter: Hyoungjun Kim
• Created: 14/Apr/14 10:42
• Updated: 18/Dec/14 01:48
• Resolved: 18/Dec/14 01:48

Description

Most ETL program uses date/time function like now(), add_month(). For this Tajo should support Interval type. In addition, we need to create a lot of functions. Actually there is some non-standard function and many user uses that function. So I propose implementing all standard function and some of wildly used non-standard function..
This is a umbrella issue. I'll create various subtasks.

Sub-Tasks

• Implements current date/time function: Resolved
• Implements TO_TIMESTAMP() function.: Resolved
• Implements ADD_MONTHS() function: Resolved
• Implements ADD_DAYS() function: Resolved