Function buildLinkPredicate

packages/data-table/src/lib/database/relations.ts:268–287

(targetColumns: string[], tuples: unknown[][])

}

function buildLinkPredicate(targetColumns: string[], tuples: unknown[][]): Predicate | undefined {
  if (tuples.length === 0) {
    return undefined
  }

  if (targetColumns.length === 1) {
    return inList(
      targetColumns[0],
      tuples.map((tuple) => tuple[0]),
    )
  }

  let tuplePredicates = tuples.map((tuple) => {
    let comparisons = targetColumns.map((column, index) => eq(column, tuple[index]))

    return and(...comparisons)
  })

  return or(...tuplePredicates)
}

function groupRowsByTuple(
  rows: Record<string, unknown>[],