Function toColumnarFormat

toColumnarFormat<T extends Record<string, unknown>>(
    items: T[],
    fields: Set<string> | "all",
    availableFields: readonly string[],
): { columns: string[]; rows: unknown[][] }
Converts array of objects to columnar format (columns + rows)
Type Parameters
- T extends Record<string, unknown>
Parameters
- items: T[]
  Array of objects to convert
- fields: Set<string> | "all"
  Set of field names to include, or 'all'
- availableFields: readonly string[]
  Canonical field order when fields is 'all'
Returns { columns: string[]; rows: unknown[][] }
Object with columns array and rows 2D array
- Defined in src/builders/schemas.ts:87