{
  "date": "2026-10-23",
  "source_baseline": "1bd9daa8d75586424f3a5d9ad7acc14d600baffb",
  "candidate_source_sha256": {
    "src/main/java/tech/streamfusion/planner/JvmFunctionTypes.java": "a6b7fcb3689c7aa91c96d2b0a36e6a4b216e5608ba7d4d95693561052ddb6f11",
    "src/main/java/tech/streamfusion/operator/SerializedRowKeySelector.java": "3c2dd5fe4d4f81f03c994e0b2368264e386f272d0eeb5bb4bbc4bea7a57a1ff2",
    "src/main/java/tech/streamfusion/operator/NativeColumnarJvmGroupOperator.java": "f27cacb65215a7faba80126cc3eaa9aa8143c04118d68903df0ebdf5f13d6ae8",
    "src/main/java/tech/streamfusion/planner/NativeJvmGroupExecNode.java": "ada64399941f930ed83829968f9430612b92023425b5b73998f1fe8df00e0d43",
    "src/main/java/tech/streamfusion/planner/JvmGroupAggregateMatcher.java": "a5ad53d541f1973c32c5b4872f43ef6c761be4d6ce25c8240e92faac408041e3",
    "src/main/java/tech/streamfusion/planner/TableFunctionMatcher.java": "1a5147320cf50404984777aa491d59946e1eccf0b530714d61c7f316065c2532"
  },
  "platform": {
    "cpu": "Intel Core i7-12650H",
    "logical_cpus": 16,
    "os": "Linux/WSL2 x86_64",
    "jdk": "OpenJDK 17.0.20.1",
    "flink": "2.2.1",
    "native_build": "release, mimalloc, rocksdb-state",
    "test_jvm_heap": "2 GiB"
  },
  "method": {
    "rows": 262144,
    "parallelism": 1,
    "batch_rows": 1024,
    "warmups": 2,
    "measured_alternating_pairs": 5,
    "timed_boundary": "executeSql(INSERT).await; matched preflight and fixture setup precede timing; row sources, both transposes, JVM callbacks, keyed state and native exchange retained",
    "aggregate_keys": 64,
    "wide_decimal_grouping_keys": 8,
    "prior_route": "whole-query stock fallback, asserted zero substitutions",
    "candidate_route": "intended native operator consumes input; both transposes asserted",
    "limitations": [
      "Short complete jobs include startup and JIT effects; several trial ranges drift or overlap.",
      "Baseline and candidate use separate JVMs with separate stock controls; no isolated causal speedup or sustained-throughput claim.",
      "UDF coverage ships under the accepted performance exception; all unfavorable trials are retained."
    ],
    "local_exchange": "production IPC; streamfusion.exchange.zeroCopyLocal=false"
  },
  "phases": {
    "candidate22": {
      "TABLE_BINARY(4)": {
        "stock_seconds": [
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        "native_enabled_seconds": [
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          0.266776924,
          0.292826496,
          0.243454531
        ]
      },
      "JVM_AGG_DECIMAL(38,18)": {
        "stock_seconds": [
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          0.189220462,
          0.191929652,
          0.202798597,
          0.193941881
        ],
        "native_enabled_seconds": [
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        ]
      },
      "JVM_AGG_TIMESTAMP(9)": {
        "stock_seconds": [
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          0.189336723,
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        ],
        "native_enabled_seconds": [
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      },
      "JVM_AGG_BINARY(4)": {
        "stock_seconds": [
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        ],
        "native_enabled_seconds": [
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        ]
      },
      "JVM_AGG_KEY_DECIMAL(38,18)": {
        "stock_seconds": [
          0.322136642,
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          0.186250189,
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        "native_enabled_seconds": [
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        ]
      }
    },
    "prior22": {
      "TABLE_BINARY(4)": {
        "stock_seconds": [
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        ],
        "native_enabled_seconds": [
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        ]
      },
      "JVM_AGG_DECIMAL(38,18)": {
        "stock_seconds": [
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        "native_enabled_seconds": [
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      },
      "JVM_AGG_TIMESTAMP(9)": {
        "stock_seconds": [
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        ],
        "native_enabled_seconds": [
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          0.186867063,
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        ]
      },
      "JVM_AGG_BINARY(4)": {
        "stock_seconds": [
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        ],
        "native_enabled_seconds": [
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        ]
      },
      "JVM_AGG_KEY_DECIMAL(38,18)": {
        "stock_seconds": [
          0.271416223,
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          0.176858402,
          0.176501936,
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        ],
        "native_enabled_seconds": [
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          0.240331372,
          0.195864106,
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        ]
      }
    }
  },
  "validation": {
    "2.2.1": {
      "totals": {
        "tests": 184,
        "failures": 0,
        "errors": 0,
        "skipped": 0
      },
      "classes": {
        "operator.SerializedRowKeySelectorTest": {
          "tests": 1,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "operator.NativeJvmAggregateTtlTest": {
          "tests": 2,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "FlinkJvmAggregateModifiersSqlHarnessTest": {
          "tests": 9,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "FlinkTypedJvmAggregateSqlHarnessTest": {
          "tests": 59,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "FlinkTypedTableFunctionSqlHarnessTest": {
          "tests": 64,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "FlinkJvmAggregateSqlHarnessTest": {
          "tests": 45,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "StatefulSqlRescaleTest": {
          "tests": 4,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        }
      },
      "expected_skips": null
    },
    "1.18.1": {
      "totals": {
        "tests": 184,
        "failures": 0,
        "errors": 0,
        "skipped": 2
      },
      "classes": {
        "operator.SerializedRowKeySelectorTest": {
          "tests": 1,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "operator.NativeJvmAggregateTtlTest": {
          "tests": 2,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "FlinkJvmAggregateModifiersSqlHarnessTest": {
          "tests": 9,
          "failures": 0,
          "errors": 0,
          "skipped": 2
        },
        "FlinkTypedJvmAggregateSqlHarnessTest": {
          "tests": 59,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "FlinkTypedTableFunctionSqlHarnessTest": {
          "tests": 64,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        },
        "FlinkJvmAggregateSqlHarnessTest": {
          "tests": 45,
          "failures": 0,
          "errors": 0,
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        },
        "StatefulSqlRescaleTest": {
          "tests": 4,
          "failures": 0,
          "errors": 0,
          "skipped": 0
        }
      },
      "expected_skips": "STATE_TTL hints are unavailable on Flink 1.18"
    }
  }
}