inferCalculatedColumnTypeFromExpression

Infer from the expression text: an aggregated category (Aggregated / Cumulative / Quantile / Window) when it contains an aggregation, Observable when it is per-row and contains an observable brace call (CHANGE_COUNT{…}, ROW_AGE{}, …), otherwise Standard. Runtime fallback when Type is absent.

inferCalculatedColumnTypeFromExpression: (expression: string | undefined | null) => CalculatedColumnType