{ "date": "2026-10-19", "feature": "ordinary scalar FLOAT/DOUBLE ROW_NUMBER using mutable Flink sort groups", "source_identity": { "prior": "bd87a08533536630f0cb0b3328cfa6663c5d230d", "dsos": { "current": "ca4ec6e0738a5c8248f6d79eb2006dad9038e6351eccdb85b1ed5093b8e9bfc3", "actual-prior": "b2057a28c67ca2ba1d1723a263485b3c1e04fff330ec0390f973db7a8f8c5096" }, "sources": { "src/test/java/tech/streamfusion/NonTimeFloatingRankBenchmark.java": "3c6bb8a869798635be74744723651020082aab38f206a8287ad81f8d9aa4caa1", "src/main/java/tech/streamfusion/planner/NonTimeRowNumberMatcher.java": "5fe85dea309b0f84c0dca34d69c5a4de2f0102f7fa8b5f7b4ae6879cd0e0ad84", "src/main/java-flink1.18/tech/streamfusion/compat/RuntimeCompat.java": "bb8a9ba7e8dadb93793bd7eb5a8fb34cf125e4e4dd26f2a72fed3efea3f4b0e5", "src/main/java-flink2.2/tech/streamfusion/compat/RuntimeCompat.java": "bfcbff532a4fff192e78721114f5819f0a0d1b2098f2a269236f20255a720be2", "native/engine/src/topn.rs": "3ea027cebc0cff96fc363a995df1a4bca86ce05b6148706d111e70957087fa76", "native/engine/src/topn/non_time_row_number_tests.rs": "7a84d636cd7b852c5a05ce3009e6b4b81ba7ba3da235351c96813cff8a9dd622", "native/engine/benches/non_time_row_number.rs": "d0d720e2012f9c92dad47b36e481cdc070ea4495a3fb2b142490a8898a707289", "native/engine/benches/non_time_row_number/floating.rs": "0665a968c8626a5fb69c165d5c6467afbf1dcf153b871be796574e30cb0a381c", "src/test/java/tech/streamfusion/FlinkFloatingNonTimeRankSqlHarnessTest.java": "385a0181aaac4ab6a7dbae76558d1475b485dc55311e2af171bf2b02c605ac9e", "src/test/java/tech/streamfusion/FlinkNonTimeRowNumberSqlHarnessTest.java": "18556d154515b0bbe1eee5ff11ec60a8ab4db6b3c2878b39a6c250ae8d348093" } }, "configuration": { "flink": "2.2.1", "correctness_lines": [ "2.2.1", "1.18.1" ], "jdk": 17, "native": "separately frozen release+mimalloc current DSO and actual-prior b205 DSO, SHA256 values in source_identity", "heap": "2 GiB", "time_zone": "UTC", "parallelism": 1, "rows": 131072, "partitions": 1024, "entry_batch_rows": 1024, "source": "runtime FLOAT/DOUBLE values; mixed nonmonotonic IEEE data (two NaN signs/payloads, both zero signs, infinities and subnormals), NULL every31rows; all_nan control has no NULLs; BIGINT control uses finite runtime longs", "arrival": "ascending/descending finite component; SQL ORDER BY always ascending", "warmups_per_engine": 2, "trials_per_engine": 3, "order": "alternating engines", "boundary": "complete jobs retaining startup, both row/Arrow transposes, production IPC shuffle, JNI, all retained rank state, every rank change and row blackhole sink", "native_proof": "NativeColumnarTopN and both transposes asserted per native plan; consumed native records required per job; actual-prior floating fallback asserted; BIGINT executes natively on both revisions", "exclusive_local_heavy_work": true, "reproduce": "SF_BENCHMARK=true mvn -pl streamfusion-runtime test -Pbench -Dtest=NonTimeFloatingRankBenchmark -Drank.float.types=FLOAT,DOUBLE -Drank.float.arrivals=ascending,descending -Drank.float.corpus=mixed -Drank.float.rows=131072 -Drank.float.keys=1024 -Drank.float.warmup=2 -Drank.float.runs=3 -Dsf.extraJvmArgs=-Xmx2g", "controls": "all_nan: DOUBLE,ascending,nullEvery=0; scalar-control: BIGINT,ascending,finite,nullEvery=31. Prior uses identical fixture on bd87a085 and prior b205 library." }, "summary": { "stock_native_ratio_range": [ 2.0559732604307346, 2.7539109529247887 ], "actual_prior_native_ratio_range": [ 1.3400512403283675, 3.175563539113873 ] }, "qualification": { "22": [ "[INFO] Tests run: 32, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 18.53 s -- in tech.streamfusion.FlinkNonTimeComplexRankSqlHarnessTest", "[INFO] Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.607 s -- in tech.streamfusion.FlinkComplexRankContextSqlHarnessTest", "[WARNING] Tests run: 15, Failures: 0, Errors: 0, Skipped: 1, Time elapsed: 11.10 s -- in tech.streamfusion.FlinkNonTimeRowNumberSqlHarnessTest", "[WARNING] Tests run: 30, Failures: 0, Errors: 0, Skipped: 2, Time elapsed: 9.454 s -- in tech.streamfusion.FlinkFloatingNonTimeRankSqlHarnessTest", "[WARNING] Tests run: 82, Failures: 0, Errors: 0, Skipped: 3" ], "118": [ "[WARNING] Tests run: 32, Failures: 0, Errors: 0, Skipped: 32, Time elapsed: 1.301 s -- in tech.streamfusion.FlinkNonTimeComplexRankSqlHarnessTest", "[WARNING] Tests run: 5, Failures: 0, Errors: 0, Skipped: 5, Time elapsed: 0.121 s -- in tech.streamfusion.FlinkComplexRankContextSqlHarnessTest", "[WARNING] Tests run: 15, Failures: 0, Errors: 0, Skipped: 12, Time elapsed: 2.579 s -- in tech.streamfusion.FlinkNonTimeRowNumberSqlHarnessTest", "[WARNING] Tests run: 30, Failures: 0, Errors: 0, Skipped: 28, Time elapsed: 0.428 s -- in tech.streamfusion.FlinkFloatingNonTimeRankSqlHarnessTest", "[WARNING] Tests run: 82, Failures: 0, Errors: 0, Skipped: 77" ] }, "native_unit_tests": { "filter": "topn::", "passed": 28, "includes": "Independent linear group-list comparator model updates representative on equal insertion and verifies every emitted identity through repeated raw snapshots." }, "native_fixture_allocation_records": [ "NATIVE_ALLOCATION,\"non_time_row_number/bigint/rows=16/keys=1/reverse=false\",148,14131,0,456", 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seconds=5.269193", "[floating-rank-trial] type=FLOAT arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=4 warmup=false seconds=5.526563", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=0 warmup=true seconds=3.658613", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=0 warmup=true seconds=2.813857", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=1 warmup=true seconds=2.613613", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=1 warmup=true seconds=2.599758", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=2 warmup=false seconds=2.557506", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=2 warmup=false seconds=2.542821", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=3 warmup=false seconds=2.541203", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=3 warmup=false seconds=2.614548", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=4 warmup=false seconds=2.669379", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=4 warmup=false seconds=2.574905", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=0 warmup=true seconds=4.440564", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=0 warmup=true seconds=4.554100", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=1 warmup=true seconds=4.978682", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=1 warmup=true seconds=5.530213", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=2 warmup=false seconds=5.443413", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=2 warmup=false seconds=6.042074", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=3 warmup=false seconds=5.325533", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=3 warmup=false seconds=4.451908", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=Flink trial=4 warmup=false seconds=4.202091", "[floating-rank-trial] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=4 warmup=false seconds=4.304977" ], "summaries": [ "[floating-rank] type=FLOAT arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 host_mean=2.623940s native_mean=2.662726s host_trials=[2.637453534, 2.678553681, 2.555813396] native_trials=[2.625583302, 2.742202312, 2.620392361]", "[floating-rank] type=FLOAT arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 host_mean=5.266513s native_mean=5.360700s host_trials=[5.138695784, 5.39165036, 5.269193312] native_trials=[5.258144367, 5.297392544, 5.526562651]", "[floating-rank] type=DOUBLE arrival=ascending corpus=mixed rows=131072 keys=1024 nullEvery=31 host_mean=2.613811s native_mean=2.552976s host_trials=[2.557505767, 2.614548211, 2.669379223] native_trials=[2.542820684, 2.541202566, 2.574905341]", "[floating-rank] type=DOUBLE arrival=descending corpus=mixed rows=131072 keys=1024 nullEvery=31 host_mean=4.699137s native_mean=5.224195s host_trials=[5.443412795, 4.451907983, 4.202090758] native_trials=[6.042074374, 5.325533126, 4.30497744]" ] }, { "run": "actual-prior-all-nan", "trials": [ "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=Flink trial=0 warmup=true seconds=0.933791", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=StreamFusion trial=0 warmup=true seconds=0.611855", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=StreamFusion trial=1 warmup=true seconds=0.377147", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=Flink trial=1 warmup=true seconds=0.365214", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=Flink trial=2 warmup=false seconds=0.362974", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=StreamFusion trial=2 warmup=false seconds=0.210273", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=StreamFusion trial=3 warmup=false seconds=0.238354", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=Flink trial=3 warmup=false seconds=0.242393", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=Flink trial=4 warmup=false seconds=0.277921", "[floating-rank-trial] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 engine=StreamFusion trial=4 warmup=false seconds=0.234459" ], "summaries": [ "[floating-rank] type=DOUBLE arrival=ascending corpus=all_nan rows=131072 keys=1024 nullEvery=0 host_mean=0.294429s native_mean=0.227695s host_trials=[0.362973764, 0.242392714, 0.277921067] native_trials=[0.210273085, 0.238353709, 0.234458821]" ] }, { "run": "actual-prior-scalar-control", "trials": [ "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=Flink trial=0 warmup=true seconds=1.423362", "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=0 warmup=true seconds=0.535139", "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=1 warmup=true seconds=0.311798", "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=Flink trial=1 warmup=true seconds=0.831354", "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=Flink trial=2 warmup=false seconds=0.768616", "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=2 warmup=false seconds=0.287349", "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=3 warmup=false seconds=0.209388", "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=Flink trial=3 warmup=false seconds=0.781317", "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=Flink trial=4 warmup=false seconds=0.716026", "[floating-rank-trial] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 engine=StreamFusion trial=4 warmup=false seconds=0.242938" ], "summaries": [ "[floating-rank] type=BIGINT arrival=ascending corpus=finite rows=131072 keys=1024 nullEvery=31 host_mean=0.755320s native_mean=0.246558s host_trials=[0.768615795, 0.781317107, 0.716025945] native_trials=[0.287349052, 0.209388072, 0.242938024]" ] } ], "diagnostics": [ "Gate-only admission passed8 finite cases but failed8 NaN raw-bit changelog cases.", "The first proxy-key candidate retained the first group representative. Its unit/fixture model made the same assumption; released SQL failed8 NaN and8 recovery cases. Corrected model follows actual latest-key replacement, retaining mutable group boundaries and order.", "Tagged negative group lengths use existing optional count metadata; raw codec preserves negatives and grouped restore preserves order. Original payload bytes remain independent.", "Expanded tests compare raw floating bits, all changelog kinds, NULL placements, physical batches1/7, two memory/RocksDB restores, mini-batches and three-way shuffle.", "Native admission could bypass released1.18 factory rejection. New compatibility gating covers all ordinary types; explicit FLOAT/DOUBLE/BIGINT controls assert failure class/message/phase.", "The BIGINT control median is4.1%higher on current than prior, with overlapping trial ranges; no scalar speedup claimed.", "All complete-job timings include startup and source/output allocation. All-NaN and scalar-control timings have larger relative variability. No universal or sustained-throughput claim." ] }