Caleb Rackliffe created CASSANDRA-18796:
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Summary: Optionally fail when a non-partition-restricted query is
issued against a storage-attached index with a backing table using LCS
Key: CASSANDRA-18796
URL: https://issues.apache.org/jira/browse/CASSANDRA-18796
Project: Cassandra
Issue Type: Improvement
Components: Feature/2i Index, Feature/SAI, Local/Compaction/LCS
Reporter: Caleb Rackliffe
Assignee: Caleb Rackliffe
With LCS, we will have potentially thousands of SSTables for a given user
table. Storage-attached also means SSTable-attached, and searching thousands of
attached indexes is not going to scale well at all locally, due to the sheer
number of searches and amount of postings list merging involved. We should have
a guardrail to prohibit this by default.
Partition-restricted queries, the use-case SAI is broadly designed for, should
be very efficient.
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