Tests

Get schema attributes #1294

Job	Run time
Setup & Build Docker Image	2m 27s
Unit Test	50s
Adapter Tests (MariaDB)	2m 11s
Adapter Tests (MySQL)	2m 34s
Adapter Tests (Postgres)	2m 6s
Adapter Tests (SQLite)	1m 18s
Adapter Tests (MongoDB)	1m 14s
Adapter Tests (Mirror)	3m 20s
Adapter Tests (SharedTables/MariaDB)	2m 20s
Adapter Tests (SharedTables/MySQL)	2m 38s
Adapter Tests (SharedTables/Postgres)	1m 55s
Adapter Tests (SharedTables/SQLite)	1m 25s
Adapter Tests (SharedTables/MongoDB)	1m 9s
	25m 27s

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