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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PHOENIX-1710) Implement the json_extract_path_text built-in function
Date Sat, 07 Mar 2015 18:48:38 GMT
James Taylor created PHOENIX-1710:
-------------------------------------

             Summary: Implement the json_extract_path_text built-in function
                 Key: PHOENIX-1710
                 URL: https://issues.apache.org/jira/browse/PHOENIX-1710
             Project: Phoenix
          Issue Type: Sub-task
            Reporter: James Taylor


Implement the json_extract_path_text modeled after the Postgres function. This function returns
JSON pointed to by the path elements argument. In Phoenix, it could be implemented like this:

{code}
VARCHAR json_extract_path_text (VARCHAR json, 
                                                         VARCHAR ARRAY path_elems paths)
{code}

For example:
{code}
SELECT json_extract_path_text(json_col, ARRAY['f4','f6'])
FROM my_table;
{code}




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