CNDB-16859: Use SinglePartitionReadCommand for index queries

[adelapena]

What is the issue

Historically all queries using indexes have been treated as a PartitionRangeReadCommand. I think was done mostly for simplicity, but it has a number of caveats:

• There are no speculative retries for range queries. Speculative retry would help with the latency spikes described in https://github.com/riptano/cndb/issues/16823.
• There are no digest reads. That consumes more network and it is likely detrimental for throughput.
• Metrics and observability become more complicated because the read commands tend not to clearly show that they are single-partition.

CASSANDRA-19968 has changed this in ASF trunk so index queries targeting a single partition become SinglePartitionReadCommand. However, I think this change is not included in the current main-5.0. Probably we should bring in that change to CC too.

What does this PR fix and why was it fixed

Use SinglePartitionReadCommand for index queries for a single partition.

[github-actions]

Checklist before you submit for review

• This PR adheres to the Definition of Done
• Make sure there is a PR in the CNDB project updating the Converged Cassandra version
• Use NoSpamLogger for log lines that may appear frequently in the logs
• Verify test results on Butler
• Test coverage for new/modified code is > 80%
• Proper code formatting
• Proper title for each commit staring with the project-issue number, like CNDB-1234
• Each commit has a meaningful description
• Each commit is not very long and contains related changes
• Renames, moves and reformatting are in distinct commits
• All new files should contain the DataStax copyright header instead of the Apache License one

[cassci-bot]

❌ Build ds-cassandra-pr-gate/PR-2253 rejected by Butler

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41 regressions found
See build details here

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Found 41 new test failures

Showing only first 15 new test failures

Test	Explanation	Runs	Upstream
o.a.c.distributed.test.sai.GenericOrderByTest.testOrderBy	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.QueryContextTest.testSkinnyTable[fa] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.QueryContextTest.testWideTableScoreOrdered[db] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.QueryContextTest.testWideTableScoreOrdered[eb] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.QueryContextTest.testWideTableWithStatics[dc] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.QueryContextTest.testWideTableWithStatics[ec] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.QueryContextTest.testWideTableWithoutStatics[dc] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.QueryContextTest.testWideTableWithoutStatics[ec] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.cql.BM25Test.testWidePartitionWithPkPredicate[version=ec] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.cql.BM25Test.testWidePartitionWithPkPredicate[version=ed] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.cql.BM25Test.testWidePartitionWithPkPredicate[version=fa] (compression)	REGRESSION	🔵🔴	0 / 19
o.a.c.index.sai.cql.VectorCompaction100dTest.testOneToManyCompaction[ec false]	REGRESSION	🔴⚪	0 / 19
o.a.c.index.sai.cql.VectorCompaction2dTest.testZeroOrOneToManyCompaction[ca false] (compression)	REGRESSION	🔴🔵	0 / 19
o.a.c.index.sai.cql.VectorSiftSmallTest.testMultiSegmentBuild[ec true false]	REGRESSION	🔴⚪	0 / 19
o.a.c.index.sai.cql.VectorUpdateDeleteTest.testTTLOverwriteHasCorrectOnDiskRowCount[fa false true] (compression)	REGRESSION	🔵🔴	0 / 19

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Found 7 known test failures

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
88.5% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud