1. A method for generating at least one posting list in connection with querying a content store, comprising: receiving at least one query term for querying the content store; and for each query term of the at least one query term, generating a posting list wherein, if one or more documents of the content store satisfy the query term, the posting list includes at least one posting record, wherein a posting record refers to a document that satisfies the query term, and wherein each posting record of said at least one posting record includes a temporal field for storing a time associated with the document.