OFF-LOADING STAR JOIN OPERATIONS TO A STORAGE SERVER
First Claim
1. A method for off-loading star-join operations from a host information processing system to a storage server, the method on the storage server comprising:
- receiving, from a host information processing system, at least a first set of keys from a first dimension table and at least a second set of keys from a second dimension table, wherein each of the first and second set of keys are associated with at least one fact table;
receiving, from the host information processing system, a set of locations associated with a set of foreign key indexes;
traversing, in response to the receiving, a set of fact table indexes;
identifying, in response to the traversing, at least a first set of Row Identifiers (“
RIDs”
) associated with the first set of keys and at least a second set of RIDs associated with the second set of keys;
performing an operation on the first set of RIDs and the second set of RIDs to identify an intersecting set of RIDs; and
storing the intersecting set of RIDs.
1 Assignment
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Accused Products
Abstract
A method, storage server, and computer readable medium for off-loading star-join operations from a host information processing system to a storage server. At least a first and second set of keys from a first and second dimension table, respectively are received from a host system. Each of the first and second set of keys is associated with at least one fact table. A set of locations associated with a set of foreign key indexes are received from the host system. A set of fact table indexes are traversed. At least a first set of Row Identifiers (“RIDs”) associated with the first set of keys and at least a second set of RIDs associated with the second set of keys are identified. An operation is performed on the first and second sets of RIDs to identify an intersecting set of RIDs. The intersecting set of RIDs are then stored.
18 Citations
20 Claims
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1. A method for off-loading star-join operations from a host information processing system to a storage server, the method on the storage server comprising:
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receiving, from a host information processing system, at least a first set of keys from a first dimension table and at least a second set of keys from a second dimension table, wherein each of the first and second set of keys are associated with at least one fact table; receiving, from the host information processing system, a set of locations associated with a set of foreign key indexes; traversing, in response to the receiving, a set of fact table indexes; identifying, in response to the traversing, at least a first set of Row Identifiers (“
RIDs”
) associated with the first set of keys and at least a second set of RIDs associated with the second set of keys;performing an operation on the first set of RIDs and the second set of RIDs to identify an intersecting set of RIDs; and storing the intersecting set of RIDs. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A storage server for off-loading star-join operations from a host information processing system, the storage server comprising:
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a processor; a memory communicatively coupled to the processor; and an off-load manager communicatively coupled to the processor and the memory, wherein the off-load manager is adapted to; receive, from a host information processing system, at least a first set of keys from a first dimension table and at least a second set of keys from a second dimension table, wherein each of the first and second set of keys are associated with at least one fact table; receive, from the host information processing system, a set of locations associated with a set of foreign key indexes; traverse, in response to the receiving the set of locations, a set of fact table indexes; identify, in response to the traversing the set of fact table indexes, at least a first set of Row Identifiers (“
RIDs”
) associated with the first set of keys and at least a second set of RIDs associated with the second set of keys;perform an operation on the first set of RIDs and the second set of RIDs to identify an intersecting set of RIDs; and store the intersecting set of RIDs. - View Dependent Claims (10, 11, 12, 13, 14)
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9. The storage server of claim, wherein the off-load manager is further adapted to:
send the intersecting set of RIDs to the host information processing system.
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15. A computer program storage product for off-loading star-join operations from a host information processing system to a storage server, the computer program storage product comprising instructions for:
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receiving, from a host information processing system, at least a first set of keys from a first dimension table and at least a second set of keys from a second dimension table, wherein each of the first and second set of keys are associated with at least one fact table; receiving, from the host information processing system, a set of locations associated with a set of foreign key indexes; traversing, in response to the receiving, a set of fact table indexes; identifying, in response to the traversing, at least a first set of Row Identifiers (“
RIDs”
) associated with the first set of keys and at least a second set of RIDs associated with the second set of keys;performing an operation on the first set of RIDs and the second set of RIDs to identify an intersecting set of RIDs; and sending the intersecting set of RIDs to the host information processing system. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification