Type Alias SamplingHeuristicConfig

Type Declaration

• OptionalallowTimeoutFallback?: boolean

  When true, heuristic sampling falls back to random on timeout instead of raising an error. Set by the orchestrator when strategy=AUTO.

• OptionalchunkSize?: number

  Max CASE WHEN expressions per subquery chunk (avoids HANA parse-tree depth limit). Default: 100.

• OptionalchunkThreshold?: number

  Column count above which chunked SQL is used instead of a flat query. Default: 150.

• OptionalfuzzyDateDays?: number

  Day window for fuzzy date matching. A date column scores 1 if abs(DAYS_BETWEEN(row_date, query_date)) <= dateFuzzyDays. Set to 0 for exact date match. Default: 30.

• OptionalfuzzyNumPct?: number

  Numeric fuzzy threshold as a fraction of the absolute query value. E.g. 0.1 = ±10%. Default: 0.1.

• OptionalmethodRatio?: number

  Fraction of numRows filled by scoring method (remainder is random fill). Must be between 0 and 1. Default: 0.67.

• OptionalpoolSize?: number | null

  If set, scoring runs against a random subsample of this many rows instead of the full table. None = full table scan.