hello-stephen opened a new pull request, #66289:
URL: https://github.com/apache/doris/pull/66289

   ### What problem does this PR solve?
   
   Issue Number: N/A
   
   Related PR: N/A
   
   Problem Summary:
   
   When global regression TLS mode is enabled, `SuiteContext.connect()` appends 
Doris mTLS parameters to every supplied JDBC URL and returns that rewritten URL 
before opening a connection. As a result, external JDBC setup closures do not 
run, and external MySQL/PostgreSQL regression cases fail before their source 
databases are prepared.
   
   This change removes the TLS-specific URL rewriting from `connect()`. The 
method now remains protocol-agnostic, opens the exact URL supplied by the 
caller, switches the thread-local connection, executes the closure, and 
restores the original connection. Doris TLS parameters remain applied to the 
default Doris JDBC URL by `Config.createDefaultDb()`.
   
   A unit test enables global TLS mode and uses an external recording JDBC 
driver to verify that:
   
   - the supplied external URL is unchanged;
   - a real JDBC connection is opened;
   - the closure executes with the temporary connection;
   - the connection is closed and the original thread-local state is restored.
   
   This Draft PR targets `branch-4.1` because the release External regression 
is blocked. The same defect is present on master and the other maintained 
release branches and should be synchronized after this fix is reviewed.
   
   ### Release note
   
   None
   
   ### Check List (For Author)
   
   - Test
     - [ ] Regression test
     - [x] Unit Test: `mvn test` in `regression-test/framework` (4 tests passed)
     - [ ] Manual test
     - [ ] No need to test
   
   - Behavior changed:
     - [x] Yes. `connect()` now opens the caller-provided JDBC URL and executes 
its closure when global TLS mode is enabled.
   
   - Does this need documentation?
     - [x] No
   
   ### Check List (For Reviewer who merge this PR)
   
   - [ ] Confirm the release note
   - [ ] Confirm test cases
   - [ ] Confirm document
   - [ ] Add branch pick label
   


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