[{"name":"post_javascript","post_id":"12ee1ff9c4104d25882ee219d800d1b8","tags":["javascript","node","mongodb"]},{"name":"post_python","post_id":"f0accc00b6ac45619f49fcaaf8fd5069","tags":["python","mongodb"]},{"name":"post_php","post_id":"fa926b1c3a264af8be5c421d25e4d62d","tags":["php","html","mysql"]},]

db.collection.find({"post_id":{"$in":["12ee1ff9c4104d25882ee219d800d1b8","f0accc00b6ac45619f49fcaaf8fd5069"]}})