Amadeus S.a.s.

Amadeus S.a.s., Sophia Antipolis

Philippe Gentric

A device, system and method for synchronizing databases changes is provided. A change-indication bit-vector indicates a position of a change to a stored data-set and/or a respective key position defined by a data-set representation (DSR) that defines a data-set structure. When the change comprises a data-field deletion, an indication of the change-indication bit-vector is provided to a replication node managing a replica database storing a replica data-set; the replication node updates the replica and a respective DSR to show the deletion at the indicated position. When the change comprises a data-field addition, the indication of the change-indication bit-vector and a record of a key value of a new data field and a data value of the new data field, is provided to the replication database; the replication node updates the replica and the respective DSR to show the addition at the indicated position.

Devices, system and method for synchronizing changes, deletions or additions to fields at databases

A device, system and method for synchronizing databases changes is provided. A computing node determines that a change has occurred, at a primary database, to a stored data-set comprising a data fields arranged in a predetermined layout defined by a data-set representation (DSR) defining a structure of the data fields associated with respective keys. The change comprises a changed data value at a given data field. The node generates a data-change bit-vector representing the changed data value at position(s) corresponding to a location of the data field at the stored data-set. The computing node generates a position-indication bit-vector indicating the position(s) of the changed data value at the data-change bit-vector. The computing node provides respective indications of the data-change and position-indication bit-vectors to a replication node. The replication node updates a respective stored data-set using the respective indications to change a corresponding given field to the changed data value.

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Biot, France

Philippe Gentric