allow to specify unique columns for tables #1989

Job	Run time
build	8m 44s
adapter-tests-gui	9m 5s
adapter-tests (16.x, ubuntu-latest)	52s
adapter-tests (16.x, windows-latest)	1m 59s
adapter-tests (16.x, macos-latest)	1m 28s
adapter-tests (18.x, ubuntu-latest)	1m 0s
adapter-tests (18.x, windows-latest)	2m 5s
adapter-tests (18.x, macos-latest)	2m 14s
adapter-tests (20.x, ubuntu-latest)	58s
adapter-tests (20.x, windows-latest)	1m 28s
adapter-tests (20.x, macos-latest)	1m 53s
deploy	0s
	31m 46s

Provide feedback