[jira] [Commented] (CALCITE-5194) Cannot parse parenthesized UNION in subquery

[Julian Hyde (Jira)]

Title: Message Title

Julian Hyde commented on CALCITE-5194   Re: Cannot parse parenthesized UNION in subquery Does that change allow new cases to pass, without breaking existing unit tests? If so we should do it. It's extremely hard to change the grammar without breaking existing functionality. Add Comment   This message was sent by Atlassian Jira (v8.20.10#820010-sha1:ace47f9)