gateway-test #1070

Job	Run time
gateway (sqlite3, 100M)	2m 17s
gateway (redis, 100M)	1m 35s
gateway (tikv, 100M)	2m 33s
gateway (badger, 100M)	1m 34s
gateway (etcd, 100M)	2m 10s
gateway (fdb, 100M)	2m 17s
gateway (mariadb, 100M, read committed)	3m 5s
gateway (mysql, 100M, read committed)	2m 39s
gateway (mysql, 100M, repeatable read)	2m 40s
gateway (mysql, 100M, serializable)	2m 41s
gateway (postgres, 100M, read committed)	2m 28s
gateway (postgres, 100M, repeatable read)	2m 30s
gateway (postgres, 100M, serializable)	2m 50s
gateway (tidb, 100M, read committed)	7m 21s
gateway (tidb, 100M, repeatable read)	7m 25s
success-all-test	6s
	46m 11s

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