{
  "date": "2026-11-03",
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  "comparison": "Actual preceding encoder independently compiled against shared current runtime/fixture/allocator; not a whole historical DSO replay. Previous direct calls can use certified Rust despite a retained evaluator. Computed producers use the generated route.",
  "build": "release --no-default-features --features mimalloc",
  "allocator": "mimalloc; malloc and mi_malloc resolve to the same address in both release DSO and executable",
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  "retained_control_method": "Width-300 integer formats stay certified with retained evaluators in both controls. Replay saved pre-refactor initial executable/DSO and current optimized artifacts using the same current encoder/fixture; do not interpret these controls as the new pure scope.",
  "source_sha256": {
    "src/main/java/tech/streamfusion/planner/RexExpression.java": "1748a591adc0b027fa79249bc2a4cd7bfcca578ca3e163c1b49b78a05a714349",
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  "limitations": [
    "Flink 2.2 only; released Flink 1.18 rejects PRINTF.",
    "ASCII literal formats <=512 characters, width/precision <=256, selected integer conversions, failure-free integer producers only. Other routes remain unchanged.",
    "The running JDK validates flags/indexing at planning; explicit index zero is additionally excluded because JDK 11 and 17 disagree.",
    "CHAR_LENGTH and other representation-sensitive string consumers retain existing generated guards.",
    "Format parsing and per-conversion strings remain rowwise; only literal format borrowing and output scratch/builder reuse change.",
    "Prepared results do not establish universal tiny-batch or complete-job acceleration. Unfavorable prototypes, independent controls and complete jobs are retained."
  ]
}
