Complex accumulo queries

Question

Given an key, or a list of keys, what is the method to construct a complex server side filter for accumulo.

EXAMPLE: filter a OR filter b?

EXAMPLE: filter a AND filter b OR filter c AND filter d?

Is this even possible?

Answer 1

Have you looked into doing a custom iterator? Typically they are per table and work over the entire table, but can be used for filtering and aggregation in Accumulo.

http://accumulo.apache.org/notable_features.html - Basic Accumulo Explanation of an Iterator.

http://accumulo.net/iterators/overview - Explanation of how Accumulo Iterators work and includes and example with explanations.