THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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A binary tuple is kept as a sequence of fields contiguously going in memory one after another in the same order as they go in the tuple schema. The number of fields is defined by the schema too. Each field is a sequence of bytes that can be interpreted only after learning the field type in the schema.
This The field location information is represented as a table of field offsets. This table allows to find both the location and the length of each field.
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