{
  "schema_version": 1,
  "date": "2026-10-21",
  "feature": "Single-phase scalar/numeric shared DISTINCT entry TTL",
  "base_commit": "9674beb7",
  "source_sha256": {
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    "native/engine/src/group_agg/distinct.rs": "82f3b5a47279bd29e3454345257a03dd28e5c84687e53a36ab8de24ee640b5b3",
    "native/engine/src/group_agg/distinct_retention.rs": "3206ffe91f250ddd3b535270c78478fce30b748dfe04997a28daecedb6c639f7",
    "native/engine/src/group_agg/ordered_retention.rs": "023f9be2e8223b84f88f670f9fdab6a82a48c35fed9605d8895d219c4575ae4b",
    "native/engine/src/state/rocks_jni.rs": "ccc826e5f0a03be63d1138b82e591652c39bbb0096967a03cdb31716c933edf7",
    "src/main/java/tech/streamfusion/Native.java": "37fe25fe1b117164f4429aef912dc85af288d7a7b1130ff2282a1240a81c3d44",
    "src/main/java/tech/streamfusion/planner/GroupAggregateMatcher.java": "454124e50ab3fe8a64c8b065a078f3d491487f7cfbed6b52170e12a222bf138d",
    "src/test/java/tech/streamfusion/DistinctAggregateBenchmark.java": "a8cd53696cc99860bc754a2f036e821e476a9016907e29239e6004ba08ed739d",
    "src/test/java/tech/streamfusion/FlinkSharedDistinctRetentionSqlHarnessTest.java": "33f0f5b8a28af65f5b174ecaf59b5fb4f582df9ed0ff57333fc5bf6cf9442132",
    "src/test/java/tech/streamfusion/operator/NativeSharedDistinctRetentionParityTest.java": "f1244fb2ac5d723d81639e3a37c3ec9a2e7876a48bb7ad2264943320ba6b08cb"
  },
  "native_dso_sha256": {
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    "pass1": "01c88542342c6e986da7ecab47030f9c81b70d6cecd76ffc230385b0fa647ab0",
    "pass2": "be0904089e7906560ac93b811d36e9dd42510365f9513664bc471df9ee3c9c8c",
    "final": "8136cd72bacc933c5c30c22b517f569213cdd12ce065c3c68796e24d5654748a",
    "previous": "522165c63dc014fe24ffaa0ef591777cc075648cdb7e683e42e3c4f25ea60f3b"
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  "configuration": {
    "runtime": "JDK17/Linux x86_64",
    "candidate_native": "release+mimalloc",
    "previous_native": "Existing release DSO built with default,rocksdb-state features and system allocator. Production engine/bridge sources, manifests and lock are identical between its e8910de1 source checkout and canonical d13e9dc4 (verified with git diff).",
    "previous_java": "Actual canonical d13e9dc4 planner/runtime, only matching benchmark fixture copied and compiled; both profiles consume native aggregate work.",
    "rows": 1000000,
    "keys": 64,
    "parallelism": 1,
    "heap": "2 GiB",
    "backend": "memory",
    "retention_millis": 3600000,
    "phase": "ONE_PHASE",
    "mini_batch": false,
    "null_every": 7,
    "warmups": 2,
    "trials": 3,
    "boundary": "Alternating complete jobs; source, both row/Arrow transposes, JNI, state, and blackhole sink are included. No builds or tests run concurrently with timings.",
    "typed_query": "COUNT(DISTINCT BOOLEAN), COUNT(DISTINCT TIMESTAMP_LTZ(9)), SUM(DISTINCT DECIMAL(20,2))",
    "floating_query": "AVG(DISTINCT FLOAT), AVG(DISTINCT DOUBLE), SUM(DISTINCT FLOAT), SUM(DISTINCT DOUBLE)",
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      "sha256": "ec51fced9cf1dc5d67f6081ad48d54f035ddb5905f4eac198d382cf608f6ef9e",
      "total_samples": 34613,
      "inclusive_samples": {
        "streamfusion::group_agg::GroupAggregator<S>::update": 2945,
        "streamfusion::group_agg::GroupAggregator<S>::update_regular": 2944,
        "streamfusion::group_agg::distinct_retention::DistinctViewRetention::prepare": 954,
        "datafusion_common::scalar::ScalarValue::try_from_array": 607,
        "streamfusion::flink_float::boxed_equal": 512,
        "streamfusion::group_agg::distinct::DistinctSet::scalar_count": 344,
        "<arrow_array::array::struct_array::StructArray as arrow_array::array::Array>::slice": 206,
        "arrow_array::array::struct_array::StructArray::slice": 200,
        "datafusion_common::scalar::ScalarValue::try_new_null": 180,
        "streamfusion::group_agg::distinct::DistinctColumn::merge_delta": 168,
        "streamfusion::flink_float::nested_equal::equal": 158,
        "streamfusion::group_agg::output_of": 150,
        "streamfusion::group_agg::distinct::Multiplicities<K>::change_owned": 149,
        "streamfusion::flink_float::nested_equal::value_equal": 129,
        "streamfusion::group_agg::distinct::DistinctColumn::change": 111,
        "streamfusion::group_agg::GroupChanges::push_ref": 76,
        "streamfusion::group_agg::values::ScalarValues::push_ref": 70,
        "<arrow_array::array::struct_array::StructArray as core::clone::Clone>::clone": 58,
        "<arrow_array::array::struct_array::StructArray as core::convert::From<arrow_data::data::ArrayData>>::from": 52,
        "datafusion_common::scalar::ScalarValue::iter_to_array": 48,
        "streamfusion::aggregates::scalars_to_array": 48,
        "streamfusion::group_agg::values::ScalarValues::finish": 48,
        "core::ptr::drop_in_place<arrow_array::array::struct_array::StructArray>": 39,
        "streamfusion::group_agg::group_key_state_bytes": 30
      },
      "event": "cpu",
      "interval": "1ms",
      "stack": "dwarf",
      "profiled_rows": 1000000,
      "warmups": 1,
      "measured_trials": 1
    }
  },
  "optimization_passes": 2,
  "optimization": [
    "Hash timestamp membership by its value instead of one shared STRUCT-type bucket.",
    "Bind timestamp component readers once per Arrow batch and use exact i128 clock keys, avoiding temporary Arrow scalar reconstruction."
  ],
  "validation": {
    "native_passed": 847,
    "native_ignored": 2,
    "sql_operator_checks_per_release": 108,
    "typed_sql_profiles_per_release": 68,
    "typed_double_restore_checks_per_release": 24,
    "controlled_operator_checks_per_release": 16,
    "clock_dimensions": [
      "append bitset versus retracting signed counters",
      "shared filtered memberships",
      "duplicate read versus new filter-bit write",
      "independent entry and group expiry",
      "inclusive deadline",
      "cached aggregate preserved after membership expiry",
      "two successive restores",
      "memory/native raw-keyed RocksDB",
      "TTL disabled after restore",
      "old snapshot migration",
      "full-range component timestamps"
    ],
    "unchanged_upstream": {
      "method": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
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        "2.2": [
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            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
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            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=21",
            "fallbacks": []
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            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
            "variant": "aggMode=OFF",
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            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
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            "fallbacks": []
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            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
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            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=10,NativeColumnarLocalGroupAggregateOperator=21",
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            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
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            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=21",
            "fallbacks": []
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            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
            "variant": "aggMode=ON",
            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=10,NativeColumnarLocalGroupAggregateOperator=21",
            "fallbacks": []
          }
        ],
        "1.18": [
          {
            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
            "variant": "changelog=false&aggMode=OFF",
            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=21",
            "fallbacks": []
          },
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            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
            "variant": "changelog=false&aggMode=OFF",
            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=21",
            "fallbacks": []
          },
          {
            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
            "variant": "changelog=false&aggMode=OFF",
            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=21",
            "fallbacks": []
          },
          {
            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
            "variant": "changelog=false&aggMode=OFF",
            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=21",
            "fallbacks": []
          },
          {
            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
            "variant": "changelog=false&aggMode=ON",
            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=10,NativeColumnarLocalGroupAggregateOperator=21",
            "fallbacks": []
          },
          {
            "test": "org.apache.flink.table.planner.runtime.stream.sql.AggregateITCase#testDistinctWithMultiFilter",
            "variant": "changelog=false&aggMode=ON",
            "consumed_native": "NativeCalcOperator=21,NativeColumnarGroupAggregateOperator=10,NativeColumnarLocalGroupAggregateOperator=21",
            "fallbacks": []
          }
        ]
      }
    }
  },
  "note": "Every final profile beats stock. The typed query adds entry-clock work versus the previously native whole-group-only lifetime; the previous native result remains faster in that no-expiry profile. Final native adds only old-snapshot migration to the measured pass2 code; the production update path is unchanged. No performance opt-in or permission request was added. Ordered/list DISTINCT and global membership TTL remain separate completion items."
}