... efficient1
with nowadays technologies, i.e. hard-drives IO dominate other issues like memory copies or CPU computing.
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... gdf-extended2
This means a first block of the cube is written as a whole, with a consistent header, then each new block extends the last dimension of the data, always with a consistent header.
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... task3
They are faster here than in the Table [*] because the command was executed on a faster machine and with a larger memory buffer.
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