Hi 何李夫,
Just making sure I understand your point:
In MaterializingIterator::MaterializeBlock(), we iterate through all of the
column predicates, and for each one, we start from the beginning of the
column block. Your point is that upon evaluating a single column predicate,
we may have some rows t
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 u
