[IMPALA-8547] get_json_object fails to get value for numeric key

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 3.1.0
• Fix Version/s: Impala 4.0.0
• Component/s: Backend
• Labels: built-in-function
• Epic Color: ghx-label-7
• Assignee: Eugene Zimichev
• Reporter: Eugene Zimichev
• Created: 14/May/19 08:28
• Updated: 25/Aug/20 23:42
• Resolved: 25/Aug/20 23:42

Description

select get_json_object('{"1": 5}', '$.1');

returns error:
 

"Expected key at position 2"

 
I guess it's caused by using function FindEndOfIdentifier that expects first symbol of key to be a letter.
Hive version of get_json_object works fine in this case.