Schema evolution

Techniques for schema mismatch detection and evolution are described. When data is being uploaded into a source table, schema of the data to be uploaded can be compared with the schema for the source table. If a schema mismatch is detected, the schema of the source table can be modified, and the upl...

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Bibliographische Detailangaben
Hauptverfasser: Cseri, Istvan, Dageville, Benoit, Yan, Jiaqi, Iyer, Ganeshan Ramachandran, Liu, Yucan
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Techniques for schema mismatch detection and evolution are described. When data is being uploaded into a source table, schema of the data to be uploaded can be compared with the schema for the source table. If a schema mismatch is detected, the schema of the source table can be modified, and the upload can be continued without data loss.