Which backend table stores target start and target end custom field created using portfolio plugin?

Question

I am looking for the database table which stores data for target start and target end custom field created using portfolio for Jira plugin

Gisela Lassahn · Accepted Answer

Hi Aman,

I had just the same question this morning and I think I've got the answer.

Please look at this article: 
How to view Advanced Roadmaps Target Start and Target End values in the database. | Jira | Atlassian Documentation

You have to convert the unix timestamp to a readable format.

There might be a more elegant way to do this, but for me it worked like this (for the target start and issue id 38760):

SELECT substr(from_unixtime((cast(x AS UNSIGNED)/1000)),1,10) AS targetstart
FROM (
   SELECT substr(json_value,(LOCATE('"baseline_start"',json_value,1)+LENGTH("baseline_start")+4),13) AS x
     from jiradb.entity_property ep
    WHERE entity_name  = 'IssueProperty'
      AND property_key = 'jpo-issue-properties'
      AND entity_id    = 38760
      and json_value   like '%"baseline_start"%'
) s