要約

When you search for Jira issues, and the number of issues returned is greater than 1000, you don't see the exact count of issues returned. 

There are two methods to get a total count of issues matched by your JQL or issue search.

Get returned issue totals in Jira user interface

After performing an issue search, the bottom of the search results will indicate there are 1000+ issues returned.

The 1000+ text is a link that can be selected to quickly calculate the total number of matched issues. Simply click or select the link in your browser to run the calculation, and the 1000+ text will be replaced with the total.

Alternative: Get returned issue totals via REST API

1. Go to Filters > View All issues
2. Create and execute an issue search with JQL

3. The URL in the browser should look similar to the one below

   https://<yourdomain>.atlassian.net/issues/?jql=<encoded_jql_query>

4. In the browser address bar replace "/issues/" with "/rest/api/3/search" 

5. Append the URL with "&maxResults=0" parameter

   1. The final URL should look like below

      https://<yourdomain>.atlassian.net/rest/api/3/search?jql=<encoded_jql_query>&maxResults=0

6. Enter キーを押す

This will return a short JSON object. Within it, you'll see the "total" property which will hold the total count of issues returned for your JQL.

Here we are leveraging our REST API endpoint to get the count directly in the browser rather than making an API call through other means.