Storage Indexes vs Database Indexes IV: 8 Column Limit (Eight Line Poem)

(Richard Foote) As Exadata Storage Indexes (SI) are purely memory only structures located on the Exadata storage servers, care needs to be taken in how much memory they can potentially consume. As a result, there is a limit of 8 columns (or 8 SIs) that can be defined for a given 1M storage region at

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