Switch to Postgres when running tests and turn off the fsync setting (#13678)

* Run all tests fasts in postgres

* Moving postgres config to a file

* Addressing PR review comments

* Testing against mysql in the CI to keep things less changed

* Revert "Testing against mysql in the CI to keep things less changed"

This reverts commit fc940c111db269a821c54e005d76df87cb70e031.

* Fixing a test broken in postgres but working in mysql

* Fixing some tests

* Fixing some config tests with postgres

* Fixing the rest of config tests

* Fixing govet error

* Fixing search tests for postgres

config/database.go

@@ -273,7 +273,7 @@ func (ds *DatabaseStore) GetFile(name string) ([]byte, error) {
 	}
 
 	var data []byte
-	row := ds.db.QueryRowx(query, args...)
+	row := ds.db.QueryRowx(ds.db.Rebind(query), args...)
 	if err = row.Scan(&data); err != nil {
 		return nil, errors.Wrapf(err, "failed to scan data from row for %s", name)
 	}
@@ -324,8 +324,8 @@ func (ds *DatabaseStore) HasFile(name string) (bool, error) {
 		return false, err
 	}
 
-	var count int
-	row := ds.db.QueryRowx(query, args...)
+	var count int64
+	row := ds.db.QueryRowx(ds.db.Rebind(query), args...)
 	if err = row.Scan(&count); err != nil {
 		return false, errors.Wrapf(err, "failed to scan count of rows for %s", name)
 	}