Hi Yamini,
You're right that a filter would have to exhaustively search a table to
find all rows that contain a certain family and qualifier. If you
explicitly know the rows that you want to search, this is a fast operation.
Have you considered creating an inverted index? This would be a table
that you have to maintain on your own. Accumulo does not provide
automatic index generation.
- Josh
Yamini Joshi wrote:
Hello everyone
Is there a way to easily index column fields for efficient lookups in
Accumulo? My use case is to select the records containing a certain
column family and column qualifier from among a set of column
qualifiers(reverse lookup). Although this could be done using a custom
filter, I'm looking for an optimal solution (since filter might scan the
entire database).
Best regards,
Yamini Joshi
