[ARROW-17070] [Gandiva][C++] Adding mask-show-first-n and mask-show-last-n functions

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 9.0.0
• Component/s: C++ - Gandiva
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/32377
• Assignee: Palak Pariawala
• Reporter: Palak Pariawala
• Created: 14/Jul/22 10:11
• Updated: 11/Jan/23 11:48
• Resolved: 27/Jul/22 12:42

Description

Adding functions to Gandiva:
mask_show_first_n(string, int)
mask_show_last_n(string, int)

'Masking' according to Hive specification
(a-z : x, A-Z : X, 0-9 : n)

Issue Links

• links to: GitHub Pull Request #13609