{
  "schema": 1,
  "version": "0.9.0",
  "qualification": true,
  "utc": "2026-10-18T12:29:25.963902+00:00",
  "source_sha": "6a123302edad0ed49cac541615b9719bb007d188",
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    "version": "0.8.2",
    "source_sha": "ce4daf3db59b570895022b136ebdfbae1665ffec",
    "engine_git_tree": "70747bd5f8cd596e794c619c79c470a09a95976a",
    "engine_source_origin": "read-only git archive; only the two recorded benchmark source files added",
    "benchmark_source_sha256": {
      "crates/engine/examples/historical_current_baseline.rs": "0144f6c81ec8d7dfb7918ce5f6b310a03b87dc1444b240d7a98a6eba23dba0e1",
      "crates/engine/examples/janus_bench_support/mod.rs": "c64ae4a22a443bf48e252fab40a9da9cabe1edafbaaec6dfd701f9d47ddc4f6b"
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    "rust": "rustc 1.99.1 (58cf8f9c3 2026-10-13)",
    "rustflags": {
      "RUSTFLAGS": null,
      "CARGO_ENCODED_RUSTFLAGS": null
    },
    "profile": "release",
    "build_command": "cargo build --release --locked -p polybase-engine --example historical_current_baseline",
    "configuration": {
      "sizes": [
        1000,
        10000,
        100000
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      "warm_samples": 31,
      "cold_samples": 5,
      "warmups": 3,
      "retained_commits": 128,
      "updates_per_commit": 16,
      "historical_depths_from_retained_base": [
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        127
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      "equality": "group == 1 (approximately 1%; exact cardinalities reported)",
      "narrow_range_keys": 64,
      "point": "records/{floor(records/3):06}",
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      "max_result_bytes": 67108864,
      "max_wal_bytes": 268435456,
      "current_head_regression": "31 alternating old/new pairs per size and query; compare both p50 and p95, identical current query_page/search APIs, same fixed data and retained history"
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  "rustflags": {
    "RUSTFLAGS": null,
    "CARGO_ENCODED_RUSTFLAGS": null
  },
  "filesystem": "Filesystem     Type    1K-blocks     Used Available Use% Mounted on\noverlay        overlay  32978704 13792632  17491968  45% /workspace",
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      10000,
      100000
    ],
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    "point": "records/{floor(records/3):06}",
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  "limits": "Shared Linux host, not dedicated hardware. Cold = reopen and empty disposable historical cache; reopen/recovery is excluded from timer and OS/page caches are uncontrolled. Query timer includes as_of capture. VmHWM is cumulative process peak including seed, recovery, indexes, reference values and results; no per-query allocations measured. Current baseline/new engines stay idle between alternating requests; IPC and checksums are outside query timers. No power-loss claim.",
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