Merge pull request #627 from cloudsufi/timestampLtz #1678

Job	Run time
build (postgresql-plugin)	42m 16s
build (mysql-plugin)	1h 48m 36s
build (oracle-plugin)	2h 51m 14s
build (mssql-plugin)	1h 48m 4s
build (cloudsql-postgresql-plugin)	1h 45m 11s
build (cloudsql-mysql-plugin)	1h 36m 31s
	10h 31m 52s

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