[TAJO-1161] Remove joda time dependency from tajo-core

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.10.0
• Assignee: Jihun Kang
• Reporter: Hyunsik Choi
• Created: 09/Nov/14 10:52
• Updated: 11/Nov/14 10:09
• Resolved: 11/Nov/14 09:10

Description

Before 0.9.0, we had used jodatime for datetime types and functions. But, we already have our own datetime system. But, a few of some function like DateTimePartFromUnixTimestamp still uses jodatime. If we improve these functions, we can completely remove jodatime from our dependency.