Windows - Other

WhereIsIt v3 97 612 Portable

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SELECT. This query type submits predicate conditions on the properties of the events (such as \"number-of-pions > 2\" AND 2<energy-level<5\"). The QE uses its indexes to generate an event-OID set which is returned to the Query Object. We use the following notation for what is returned: {EID} - to denote set of event OIDs. A second SELECT query type submits either predicate conditions or an event-OID set {EID}, and one or more properties (P1, P2, …, Pn). The QE returns a set of tuples {(EID1, P11, P21, …, Pn1), (EID2, P12, P22, …, Pn2), …} for events that qualify.
EXECUTE. This query type submits either predicate conditions or an event-OID set, and asks that the Storage Monitor will execute this request. The QE uses its indexes to generate a file-OID set {FID}, and for each file the event-OID set of events that qualify for this query. It passes this information to the Query Monitor (QM) along with the user-ID and query-ID. We use the following notation for what is passed to the QM: UID, QID {FID {EID}}.
ESTIMATE. This query type submits either predicate conditions or an event-OID set. The QE returns to the Query Object estimate statistics. There are 2 levels of estimates, which we call ESTIMATE-QUICK, and ESTIMATE-FULL. For ESTIMATE-QUICK the QE uses in-memory indexes only to estimate the min-max number of events that qualify, the number of files that have to be cached, and the total MBs that have to cached. For ESTIMATE-FULL the QE uses secondary indexes (on disk) to determine the precise number of events that qualify, as well as the file statistics mentioned above. In addition, it provides the % of events that qualify in files, as well as a time estimate given what is in cache at that time.

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