* First cut at app factory
* Setting things back to master
* Working with new FLASK_APP
* Still need to refactor Celery
* CLI mostly working
* Working on unit tests
* Moving cli stuff around a bit
* Removing get in config
* Defaulting test config
* Adding flask-testing
* flask-testing casing
* resultsbackend property bug
* Fixing up cli
* Quick fix for KV api
* Working on save slice
* Fixed core_tests
* Fixed utils_tests
* Most tests working - still need to dig into remaining app_context issue in tests
* All tests passing locally - need to update code comments
* Fixing dashboard tests again
* Blacking
* Sorting imports
* linting
* removing envvar mangling
* blacking
* Fixing unit tests
* isorting
* licensing
* fixing mysql tests
* fixing cypress?
* fixing .flaskenv
* fixing test app_ctx
* fixing cypress
* moving manifest processor around
* moving results backend manager around
* Cleaning up __init__ a bit more
* Addressing PR comments
* Addressing PR comments
* Blacking
* Fixes for running celery worker
* Tuning isort
* Blacking
* adds react based menu for welcome view
* bump fab
* better logic in common_bootstrap_payload
* split up files
* fix spacing and module scope styles
* lint
* render correct template for welcome
* [fix] csv upload when table metadata present
* Remove table from hive spec
* Move upload before table metadata creation
* Refine upload logic, dd unit tests and fix translations
* Use ALLOWED_EXTENSIONS from config
* Address review comments
* Fix error message grammar
* Add return type to hive csv upload and replace first with one_or_none
* Typo fix in CONTRIBUTING.md
* Alter references to config.get('FOO') to use preferred config['FOO']
* Set missing configuration constants in superset/config.py
* Misc. CI fixes
* Add type annotation for FEATURE_FLATGS
* Enable lint checking for files in db_engine_spec that have few to no
lint issues
* Enable lint and fix issue in db_engine_spec/mysql.py
* Enable pylint and fix lint for db_engine_spec/pinot.py
* Enable lint and fix issues for db_engine_specs/hive.py
* Enable lint and fix for db_engine_spec/presto.py
* Re-enable lint on base.py, fix/disable specific failures, including one
bad method signature
* Make flake8 happy after a number of pylint fixes
* Update db_engine_spec_test test cases related to Presto to support
different method naming
* automated reformatting
* One more pylint disable for druid.py
* Find the magic invocation that makes all the lint tools happy
* WIP - Add easily interpretable negative timedelta formatting
* Add unit tests for utils.core.timedelta_f
* Reformat tests.utils_tests.test_timedelta_f test code. Fixes#8274.
* Add type annotations to utils.core.timedelta_f (#8274)
* Replace recursion with absolute value in utils.core.timedelta_f (#8274)
* Rename utils.core.timedelta_f to format_timedelta (#8274)
* Fix small typo (#8274)
* Handle int64 columns with missing data in SQL Lab
* Fix docstring
* Add unit test
* Small fix
* Small fixes
* Fix cursor description update
* Better fix
* Fix unit test, black
* Fix nan comparison in unit test
* Fix regression in time grain addons
* Revert privatization of time_grain_functions
* Fix test
* Rename variable
* Fix test
* Fix typing error
* Refactor and add tests
* Add TODO
* Add support for msgpack results_backend serialization
* Serialize DataFrame with PyArrow rather than JSON
* Adjust dependencies, de-lint
* Add tests for (de)serialization methods
* Add MessagePack config info to Installation docs
* Enable msgpack/arrow serialization by default
* [Fix] Prevent msgpack serialization on synchronous queries
* Add type annotations
* Add check for calls to cache_key_wrapper to avoid unavoidable compilation of query
* Add fetch_values_predicate to check
* Only check relevant attributes
* Address nit
* Add typing to db_engine_specs
* Add more type annotations and docstrings
* Add docstrings and typing to sql_parse and db_engine_specs
* Refine select_star
* Fix execute and add more docstrings
* Revert kwargs change from execute
* Remove redundant or
* Align view and table getter schema types
* Fix return type of latest_partition
* Remove some typing from presto
* Improve docstring for __extract_from_token
