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[Redis 8.10] Support TS.NRANGE and TS.NREVRANGE time series commands - #4650
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Pull request overview
Adds experimental Jedis client support for Redis TimeSeries multi-key pivot commands TS.NRANGE and TS.NREVRANGE, wiring them through the standard Jedis command matrix and adding builders/tests to validate argument construction and pivoted reply parsing.
Changes:
- Introduces
TSNRangeParamsto model optional args (range, filters, COUNT, per-key aggregation tokens) forTS.NRANGE/TS.NREVRANGE. - Adds new command-object methods and exposes new APIs on
UnifiedJedisandPipeliningBaseplus the TimeSeries command interfaces. - Adds pivoted-reply parsing via
TimeSeriesBuilderFactory.TIMESERIES_PIVOT_ELEMENT_LISTand broad unit/integration coverage.
Reviewed changes
Copilot reviewed 14 out of 14 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| src/main/java/redis/clients/jedis/timeseries/TSNRangeParams.java | New params type for TS.NRANGE / TS.NREVRANGE option encoding and wire ordering. |
| src/main/java/redis/clients/jedis/timeseries/TimeSeriesProtocol.java | Adds NRANGE / NREVRANGE protocol command constants. |
| src/main/java/redis/clients/jedis/timeseries/TimeSeriesBuilderFactory.java | Adds builder to parse timestamp-pivoted responses into TSElement / MultiValueTSElement. |
| src/main/java/redis/clients/jedis/timeseries/RedisTimeSeriesCommands.java | Public experimental APIs for tsNRange / tsNRevRange (with/without params). |
| src/main/java/redis/clients/jedis/timeseries/RedisTimeSeriesPipelineCommands.java | Pipeline API additions mirroring the new TimeSeries commands. |
| src/main/java/redis/clients/jedis/CommandObjects.java | Adds command constructors for TS.NRANGE / TS.NREVRANGE using the new builder. |
| src/main/java/redis/clients/jedis/UnifiedJedis.java | Wires new commands through unified client execution. |
| src/main/java/redis/clients/jedis/PipeliningBase.java | Wires new commands through pipeline append/execution. |
| src/test/java/redis/clients/jedis/timeseries/TSNRangeParamsTest.java | Unit tests for wire-argument construction, validation, and equals/hashCode behavior. |
| src/test/java/redis/clients/jedis/mocked/unified/UnifiedJedisTimeSeriesCommandsTest.java | Mocked unified-client delegation tests for new APIs. |
| src/test/java/redis/clients/jedis/mocked/pipeline/PipeliningBaseTimeSeriesCommandsTest.java | Mocked pipeline delegation tests for new APIs. |
| src/test/java/redis/clients/jedis/commands/unified/timeseries/TimeSeriesCommandsTestBase.java | Integration tests exercising pivot semantics, ordering, NaN gaps, and server-side aggregator arity rejection. |
| src/test/java/redis/clients/jedis/commands/commandobjects/CommandObjectsTimeSeriesCommandsTest.java | CommandObjects integration tests for NRANGE/NREVRANGE including aggregation and duplicate-key behavior. |
| pom.xml | Adds TSNRangeParams.java to formatter include list. |
Comments suppressed due to low confidence (2)
src/main/java/redis/clients/jedis/timeseries/TSNRangeParams.java:142
- This Javadoc says each aggregator is emitted as its own AGGREGATION token, but addParams emits AGGREGATION once and then appends one aggregator token per key. Please adjust the wording to match the actual wire format.
* Applies exactly one aggregator per key, in key order. The number of aggregators must equal the
* number of keys sent to the command (the server rejects a mismatch). On the wire each aggregator
* is emitted as its own {@code AGGREGATION} token.
* @param aggregators ordered, non-empty list holding one aggregator per key
src/main/java/redis/clients/jedis/timeseries/TSNRangeParams.java:250
- The addParams Javadoc claims one AGGREGATION token is emitted per key, but the implementation emits AGGREGATION once and then emits one aggregator token per key. This should be corrected to avoid confusion.
* ({@code [ALIGN align] AGGREGATION agg [agg ...]
* bucketDuration [BUCKETTIMESTAMP bt] [EMPTY]}). One {@code AGGREGATION} token is emitted per
* key.
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| * per aggregator when multiple aggregators are requested). Missing cells arrive as {@code NaN}. | ||
| * The same builder serves RESP2 and RESP3; server-returned row order is preserved. | ||
| */ | ||
| public static final Builder<List<TSElement>> TIMESERIES_PIVOT_ELEMENT_LIST = new Builder<List<TSElement>>() { |
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@since
Add an @since 8.0 tag to this newly exposed public builder constant so generated API documentation records when callers can rely on it; the repository requires every new public API to carry that annotation.
AGENTS.md reference: AGENTS.md:L26-L30
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| private boolean empty; | ||
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| public TSNRangeParams(long fromTimestamp, long toTimestamp) { |
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The class-level @since documents only TSNRangeParams itself; the public constructors, factory methods, and fluent setters beginning here are all newly exposed API members without their own tags, so their generated API entries omit the version in which callers can use them. Add @since 8.0 to each new public member.
AGENTS.md reference: AGENTS.md:L26-L30
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LGTM in general
Posted some minor questions; wondering why assertions are using delta?
| assertEquals(Arrays.asList(1000L, 2000L, 3000L), timestamps); | ||
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| assertEquals(2, rows.get(0).getValues().size()); | ||
| assertEquals(10.0, rows.get(0).getValues().get(0), 0.001); |
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What is the reason for using delta/closeto (0.001) in most asserts?
I
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this is the case, i guess, AI takes measures against rounding errors with double operations, which is right approach most of the time, though there is no double operations this time.
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I would say it make sense for aggreagated values, but for single values I think test should assert actual value directly
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Summary
Adds client support for the multi-key pivot time series commands
TS.NRANGEandTS.NREVRANGE. These query an explicit, ordered list of keys over a timestamp range and return a timestamp-major ("pivoted") reply — one row per distinct timestamp, with one value column per key (or per aggregator). The commands are wired through the full command matrix (CommandObjects,UnifiedJedis,PipeliningBase, and theRedisTimeSeriescommand/pipeline interfaces) and are marked@Experimental.Key Decisions & Assumptions
TSNRangeParamsholds onlyfromTimestamp/toTimestampplus optional args (LATEST,FILTER_BY_TS,FILTER_BY_VALUE,COUNT, and the aggregation clause).AGGREGATIONtoken is emitted per key. Convenience overloads accept a single aggregator (single-key only), one aggregator per key, or multiple comma-joined aggregators per key. Matching the token count tonumkeysis enforced by the server, not the client.TSElement/MultiValueTSElementtypes andAggregationType.joinRaw.Behavioral / Conceptual Changes
NaN, indistinguishable from a stored/aggregatedNaN.TS.NRANGE, decreasing forTS.NREVRANGE. A newTIMESERIES_PIVOT_ELEMENT_LISTbuilder parses the pivoted reply for both RESP2 and RESP3, yielding a single-valueTSElementfor one column or aMultiValueTSElementfor several.Testing
Adds unit coverage for wire-argument construction and
TSNRangeParams(option ordering,equals/hashCode, aggregation validation) acrossCommandObjects,UnifiedJedis, and pipeline surfaces, plus an integration test base exercising the commands against a live server.Notes
@since 8.0and@Experimental; signatures may change.pom.xmlchange only addsTSNRangeParams.javato the formatter include list — no new dependency.Note
Low Risk
Additive public API and read-only commands with validation and tests; no changes to auth, persistence, or existing command behavior.
Overview
Adds client support for TS.NRANGE and TS.NREVRANGE, which query an explicit ordered key list over a time range and return timestamp-major pivot rows (one value column per key,
NaNfor missing cells).New
TSNRangeParamscarries range bounds and optional flags (LATEST, filters,COUNT, per-key aggregation with client-side validation that spec count matchesnumkeys). Keys stay on the command methods; empty key lists are rejected before send.Commands are wired through
CommandObjects,UnifiedJedis,PipeliningBase, and the time-series command interfaces. A dedicatedTIMESERIES_PIVOT_ELEMENT_LISTbuilder maps pivoted replies toTSElement/MultiValueTSElement.DefaultCacheabletreats both commands as cacheable reads.Coverage includes
TSNRangeParamsTest, integration tests (gated on command availability), mocked unified/pipeline tests, and test harness cleanup viaTestKeyRegistrywhere needed.Reviewed by Cursor Bugbot for commit dbdeb54. Bugbot is set up for automated code reviews on this repo. Configure here.