> How many rows match your timestamp criteria?
Usually between 1,000 and 5,000. I agree that filtering could be way more
costly - it probably is. I just thought the expression is more complex and
worth explaining in more detail.
> Acero will not "fuse" the kernel and has no expression
How many rows match your timestamp criteria? In other words, how many rows
are you applying the function to? If there is an earlier exact match
filter on a timestamp that only matches 1 (or a few rows) then I are you
sure the expression evaluation (and not the filtering) is the costly spot?
>
Hi,
Is there a way to read a parquet table, if the data is in a string_view ?
Basically, I'm looking to do the reverse of,
parquet::arrow::WriteTable. I can see FileReader has a ::ReadTable method, but
can't seem to find a way of
constructing a FileReader given some buffer. Anyone know how?
