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Fernando Souza
Guest
There is no extra processing on the RAW field. What can impact is how much data there is already in the record, where the field you are updating is physically in the record, and how much data needs to be shifted to allow space for the new field value. When you read a record, we copy it into memory into the record buffer. When you update it, we need to reallocate memory for that record buffer and depending on the memory layout, the system may need to get a bigger memory block somewhere else in the memory space, so there could be data being copied twice. I wonder if you would see a difference if the raw field was physically before the fields you are updating. With all that said, 10 minutes does seem excessive.
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