Sam Tunnicliffe created CASSANDRA-14956:
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Summary: Paged Range Slice queries with DISTINCT can drop rows
from results
Key: CASSANDRA-14956
URL: https://issues.apache.org/jira/browse/CASSANDRA-14956
Project: Cassandra
Issue Type: Bug
Components: CQL/Interpreter
Reporter: Sam Tunnicliffe
Assignee: Sam Tunnicliffe
Fix For: 2.2.14
If we have a partition where the first CQL row is fully deleted (possibly via
TTLs), and that partition happens to fall on the page boundary of a paged range
query which is using SELECT DISTINCT, the next live partition *after* it is
omitted from the result set. This is due to over fetching of the pages and a
bug in trimming those pages where overlap occurs.
This does not affect 3.0+.
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