Hi all,


I read the function of ‘MaterializingIterator::MaterializeBlock’
carefully, and found that there is something we can do. If we adjust the
‘cur_idx_’ in ‘CFileSet::Iterator’ to the valid left of
‘dst->selection_vector’ after each loop of predicate evaluation, we could
skip reading some unnecessary ‘data_block’ and that will help to speed up.
Am I right? :)



2017-04-10 16:06:24


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