Srdjan Mitrovic created CASSANDRA-5219:
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Summary: get_indexed_keys
Key: CASSANDRA-5219
URL: https://issues.apache.org/jira/browse/CASSANDRA-5219
Project: Cassandra
Issue Type: Improvement
Reporter: Srdjan Mitrovic
We would like to get the list of keys for some indexed value by using only one
disk seek per node.
Unfortunately get_indexed_slices would also read CF where keys can be in many
different places so it would take many disk seeks just to get the list of keys.
Something like get_indexed_keys(keyRange) would be very beneficial to us.
Much better idea is to use existing
list<KeySlice> get_range_slices(ColumnParent column_parent, SlicePredicate
predicate, KeyRange range, ConsistencyLevel consistency_level) without breaking
any compatibility.
If SlicePredicate has empty list of columns and KeyRange has an IndexExpression
then only index should be fetched to return the desired keys without touching
indexed CF.
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