What is the frequency of updating the updateDate field for tickets (issue) in Jira 5/6 ?

Question

JIRA

Colleagues, you really need to know. A plugin for Jira is being made. And a question arose about the so-called. tickets (issue). With some periodicity, Jira re-indexes information about the fields of the ticket to facilitate searching through JQL filters and so on, and generally removes the load from reading from the database.
What is the frequency of updating the updateDate field for tickets (issue) in Jira 5/6 ?

Answer 1

It seems that Jira does not contain as such a built-in mechanism (service, component) that updates the index on schedules. This must be done manually, i.e. pens, or by API (Jira 6), or write your own service, script, bike.
https://confluence.atlassian.com/display/JIRA051/S...
Closing the question.