[CASSANDRA-223] time-based slicing does not work correctly w/ "historical" memtables

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 0.4
• Severity: Normal
• Assignee: Jonathan Ellis
• Reporter: Jonathan Ellis

Authors

Jonathan Ellis

• Created: 08/Jun/09 22:09
• Updated: 16/Apr/19 09:33
• Resolved: 26/Jun/09 17:26

Description

TimeFilter assumes that it is done as soon as it finds a column stamped earlier than what it is filtering on, but when you have a group of "historical" memtables whose columns were written in an arbitrary order this is not a safe assumption.

It is not even a safe assumption when dealing with a single memtable + sstable pair, as the attached new test shows.