[ASTERIXDB-2667] Share code between string functions

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.4.1
• Fix Version/s: 0.9.5
• Component/s: FUN - Functions
• Assignee: Hussain Towaileb
• Reporter: Hussain Towaileb
• Created: 01/Nov/19 15:24
• Updated: 10/Dec/19 18:19
• Resolved: 10/Dec/19 18:19

Description

The string functions concat, string_concat and string_join have a very similar behavior, they can be sharing the same code base instead of having a different evaluator for each function