Vladimir Kuzmin

Make engine.block() not waiting for non-cherrypy threads to finish

1

**What kind of change does this PR introduce?** - [x] bug fix - [ ] feature - [ ] docs update - [ ] tests/coverage improvement - [ ] refactoring...

Server shutdown stucks with message "Waiting for thread asyncio_0"

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In python 3.9 threads created by `concurrent.future` module are not daemonic anymore (see https://bugs.python.org/issue39812), it makes [that comment](https://github.com/cherrypy/cherrypy/blob/a7983fe61f7237f2354915437b04295694100372/cherrypy/process/wspbus.py#L361) not true. As a result of this change `engine.block()` attempts to join...

❓ **What kind of change does this PR introduce?** * [ ] 🐞 bug fix * [x] 🐣 feature * [ ] 📋 docs update * [ ] 📋 tests/coverage...

❓ **I'm submitting a ...** - [ ] 🐞 bug report - [X] 🐣 feature request - [ ] ❓ question about the decisions made in the repository 🐞 **Is...

Index hint for nested queries (bound to alias)

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Summary: Index hint should remember which table it was applied. Solution: - on each aliases changing in query also change alias in index hint - at rewriting stage modify SQL...