There is no regexp in JQL: https://answers.atlassian.com/questions/138055/how-can-i-use-regex-in-a-jql-query-i-cannot-match-strings-that-have-a-specific-ending-in-jql-ex-ing-should-match-running-jogging-etc
What is the meaning of * in a jql Query?, I have different results when using and not using it. But I didn't find any consequence in the results.
~
means CONTAINS, so
summary ~ win
means WHERE summary CONTAINS the exact word win.
*
is a wildcard. The example:
summary ~ "win*"
means WHERE summary CONTAINS win and any multiple character combination after it.
There are two types of wild-cards in JQL: ?
and *
where:
Check the JIRA advanced searching guide and the wild-card explanation here.