[ADD] Make sqlalchemy_extractor compatible with sqlalchemy>=1.4 #2994

	# Because the mono-repo has different test suites for each sub-project,
	# it is challenging to use Github's required status checks. For example,
	# the front-end specifies node tests, and we'd like to gate PR on their passing.
	# However, none of the other projects have those tests. Thus, if you require
	# the front-end tests to pass, it will be impossible to land non-frontend PRs.
	# However, Github helpfully has the behavior where if there are multiple test
	# runners with a single name, if any of them fail, the whole PR will fail. Thus
	# this file specifies dummy tests that will always pass.

	# The matrix specified here must be a superset of the actual tests run. This
	# has the unfortunate side effect of making PRs appear like they have more
	# coverage than they actually do, but I think it's relatively minor

	# See also:
	# * https://github.mirror.nvdadr.community/t/github-actions-and-required-checks-in-a-monorepo-using-paths-to-limit-execution/16586/4
	# * https://github.mirror.nvdadr.community/t/feature-request-conditional-required-checks/16761/2

	name: no-op
	on: pull_request
	jobs:
	test-unit-frontend:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	node-version: [12.x]
	steps:
	- name: Do nothing
	run: exit 0
	test-unit-python:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.6.x", "3.7.x", "3.8.x"]
	steps:
	- name: Do nothing
	run: exit 0

Provide feedback