Jihoon Son created TAJO-1754:
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Summary: Implement json_array_get(json_array, index) function
Key: TAJO-1754
URL: https://issues.apache.org/jira/browse/TAJO-1754
Project: Tajo
Issue Type: Sub-task
Components: Function/UDF
Reporter: Jihoon Son
Assignee: Jihoon Son
Fix For: 0.11.0
Here are some examples.
{noformat}
SELECT json_array_get('["a", "b", "c"]', 0); => "a"
SELECT json_array_get('["a", "b", "c"]', 1); => "b"
SELECT json_array_get('["c", "b", "a"]', -1); => "a"
SELECT json_array_get('["c", "b", "a"]', -2); => "b"
SELECT json_array_get('[]', 0); => null
SELECT json_array_get('["a", "b", "c"]', 10); => null
SELECT json_array_get('["c", "b", "a"]', -10); => null
{noformat}
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