Dear all,

I'm trying to understand the tuple reconstruction algorithm in MonetDB.
Maybe someone can give me a short overview to understand it or the
place in documentation where I can do some research.

As far as I understood, the BAT consists of object-ids and values. Is
the object-identifier the same as the record- or tuple-identifier? 
If it so, is there a special mechanism to position a specific oid
in a BAT or must it be scanned to find a oid?
And if not, how can I determine the corresponding values in different
BATs to reconstruct a tuple?
Or am I totally wrong and there is an obvious way to reconstruct
tuples from different BATs?


Thanks in advance,
Tim


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