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table taking 50% more space than it should

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Hi All,

I have a table with 1.4 billion rowsin - it is a many to many - and I have been carrying out some work before christmas towards partitioning it.

the length of the row is only 33 bytes, however there is a non-unique clustered index so the row size is between 33 to 41 bytes including the Uniquifier column that gets created.

When I query the index physical stats, this is what it reports, and based on that calculation, the table should take approx 55-60GB, however when I then check the free space etc (it is on its own 100Gb disk) it is showing as 85Gb used, which calculates out at 62bytes per row.

Other systems has a simular setup and they calculate out right.

Has anybody got any pointers as to what the problem is?

Cheers

Steve


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