[PHOENIX-2101] Implement ARRAY_TO_STRING built in function

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.5.0
• Assignee: Dumindu Buddhika
• Reporter: Dumindu Buddhika
• Created: 06/Jul/15 14:27
• Updated: 21/Nov/15 02:16
• Resolved: 16/Jul/15 15:59

Description

ARRAY_TO_STRING(anyarray, text [, text]) - Concatenates array elements using supplied delimiter and optional null string and returns the resulting string

eg:
ARRAY_TO_STRING(ARRAY['1', '2, '3', NULL, '5'], ',', 'k') → '1,2,3,k,5'
ARRAY_TO_STRING(ARRAY[23, 34, 45], ',') → '23,34,45'